Mg–Pr phases

11 phases (tier A 9, tier C 1, liquid 1); 10 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model).

Data: interactive registry · full JSON · Mg–Pr system page · Markdown · field reference

Phases of the Mg–Pr system (11)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:mg-pr:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 2 of 3 calculated diagram(s): 782.6–2499 K, x(Pr) 0.63957–1	18	3
B2_BCC phase:mg-pr:bcc-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–2499.13 K, x(Pr) 0.45989–1	10	1
DHCP phase:mg-pr:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–2500 K, x(Pr) 0.21896–1	9	3
FCC_A1 phase:mg-pr:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 3 calculated diagram(s)	0	3
HCP_A3 phase:mg-pr:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–932.95 K, x(Pr) 0–0.00237	9	3
LIQUID phase:mg-pr:liquid	liquid	liquid	stable in 3 of 3 calculated diagram(s): 837.03–2500 K, x(Pr) 0–1	69	3
MG12PR_D2B phase:mg-pr:mg12pr-d2b	Mn12Th · D2_b · tI26 · I4/mmm (139)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–852.72 K, x(Pr) 0.07692–0.07692	17	3
MG2PR_C15 phase:mg-pr:mg2pr-c15	Cu2Mg · C15 · cF24 · Fd-3m (227)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 932.78–1012.8 K, x(Pr) 0.33333–0.33333	26	3
MG3PR_D03 phase:mg-pr:mg3pr-d03	BiF3 · D0_3 · cF16 · Fm-3m (225)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1063.03 K, x(Pr) 0.17988–0.25	35	3
MG41PR5 phase:mg-pr:mg41pr5	Ce5Mg41 · tI92 · I4/m (87)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 3 calculated diagram(s): 300–862.94 K, x(Pr) 0.10722–0.1087	17	3
MGPR_B2 phase:mg-pr:mgpr-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1071 K, x(Pr) 0.4809–1	33	2

BCC_A2 (Mg–Pr)

Id: phase:mg-pr:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: stable in 2 of 3 calculated diagram(s): 782.6–2499 K, x(Pr) 0.63957–1
Literature: 18 values (18 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:mg-pr:bcc-a2
paper: paper:10.1016/j.calphad.2007.05.007:bcc(Pr), paper:10.1016/j.commatsci.2014.11.050:βPr, paper:10.1016/j.jallcom.2005.03.033:bcc(Pr)
tdb: tdb:MgPr-05Guo.tdb:BCC_A2, tdb:MgPr-08Guo.tdb:BCC_A2, tdb:MgPr-15Wan.tdb:BCC_A2

TDB models of BCC_A2 (3): PHASE and CONSTITUENT statements as written

MgPr-05Guo.tdb: BCC_A2, type code %B, sha256 663c0d9edf4eb106…

34: PHASE BCC_A2 %B 2 1 3 !
35: CONST BCC_A2 : MG PR% : VA% : !

MgPr-08Guo.tdb: BCC_A2, type code %B, sha256 33b8964cbc88b29c…

36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : MG PR% : VA% : !

MgPr-15Wan.tdb: BCC_A2, type code %B, sha256 43684dde82c30e77…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : MG PR% : VA% : !

Example references (6 of 6; assessments first):

doi:10.1016/j.commatsci.2014.11.050 Peisheng Wang, Rainer Schmid-Fetzer, Thermodynamic assessment of the Mg–Pr system, Computational Materials Science 104, 138-142 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2007.05.007 Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jallcom.2005.03.033 Cuiping Guo, Zhenmin Du, Thermodynamic assessment of the Mg–Pr system, Journal of Alloys and Compounds 399, 183-188 (2005).
assessment that models this phase; reports values for this phase
doi:10.1016/0966-9795(93)90010-s A. Saccone, A.M. Cardinale, S. Delfino, R. Ferro, A contribution to the rare earth intermetallic chemistry: Praseodymium-magnesium alloy system, Intermetallics 1, 151-158 (1993).
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01377-3 A. Saccone, D. Macciò, J.A.J. Robinson, F.H. Hayes, R. Ferro, Smith thermal analysis of selected Pr–Mg alloys, Journal of Alloys and Compounds 317-318, 497-502 (2001).
cited as the source of values for this phase
doi:10.1016/j.calphad.2012.05.005 Y. Kang, L. Jin, P. Chartrand, A.E. Gheribi, K. Bai, P. Wu, CALPHAD 38 (2012) 100–116.
cited as the source of values for this phase

B2_BCC (Mg–Pr)

Id: phase:mg-pr:bcc-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Caveat: MgPr-08Guo.tdb: ordered phase with disordered part BCC_A2 (order/disorder model)
Caveat: partitioned order/disorder model in MgPr-08Guo.tdb also describes the disordered state
Stability: stable in 1 of 1 calculated diagram(s): 300–2499.13 K, x(Pr) 0.45989–1
Literature: 10 values (10 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:mg-pr:bcc-b2, corpus:phase:mg-pr:b2-bcc
paper: paper:10.1016/j.calphad.2007.05.007:MgPr
tdb: tdb:MgPr-08Guo.tdb:B2_BCC

TDB models of B2_BCC (1): PHASE and CONSTITUENT statements as written

MgPr-08Guo.tdb: B2_BCC, type code %BO, sha256 33b8964cbc88b29c…

41: PHASE B2_BCC %BO 3 0.5 0.5 3 !
42: CONST B2_BCC : MG% PR : MG PR% : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2007.05.007 Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008).
assessment that models this phase; reports values for this phase
doi:10.1016/0966-9795(93)90010-s A. Saccone, A.M. Cardinale, S. Delfino, R. Ferro, A contribution to the rare earth intermetallic chemistry: Praseodymium-magnesium alloy system, Intermetallics 1, 151-158 (1993).
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01377-3 A. Saccone, D. Macciò, J.A.J. Robinson, F.H. Hayes, R. Ferro, Smith thermal analysis of selected Pr–Mg alloys, Journal of Alloys and Compounds 317-318, 497-502 (2001).
cited as the source of values for this phase

DHCP (Mg–Pr)

Id: phase:mg-pr:dhcp-a3; status assigned
Structure: alpha-La · A3' · hP4 · P6_3/mmc (194); type st:a3-alpha-la-hp4; tier A: standard phase name; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 300–2500 K, x(Pr) 0.21896–1
Literature: 9 values (9 accepted) from 3 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:mg-pr:dhcp-a3, corpus:phase:mg-pr:dhcp
paper: paper:10.1016/j.calphad.2007.05.007:dhcp(Pr), paper:10.1016/j.commatsci.2014.11.050:αPr, paper:10.1016/j.jallcom.2005.03.033:dhcp(Pr)
tdb: tdb:MgPr-05Guo.tdb:DHCP, tdb:MgPr-08Guo.tdb:DHCP, tdb:MgPr-15Wan.tdb:DHCP

TDB models of DHCP (3): PHASE and CONSTITUENT statements as written

MgPr-05Guo.tdb: DHCP, type code %A, sha256 663c0d9edf4eb106…

44: PHASE DHCP %A 1 1 !
45: CONST DHCP : MG PR% : !

MgPr-08Guo.tdb: DHCP, type code %A, sha256 33b8964cbc88b29c…

51: PHASE DHCP %A 1 1 !
52: CONST DHCP : MG PR% : !

MgPr-15Wan.tdb: DHCP, type code %A, sha256 43684dde82c30e77…

40: PHASE DHCP %A 1 1 !
41: CONST DHCP : MG PR% : !

Example references (6 of 6; assessments first):

doi:10.1016/j.commatsci.2014.11.050 Peisheng Wang, Rainer Schmid-Fetzer, Thermodynamic assessment of the Mg–Pr system, Computational Materials Science 104, 138-142 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2007.05.007 Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jallcom.2005.03.033 Cuiping Guo, Zhenmin Du, Thermodynamic assessment of the Mg–Pr system, Journal of Alloys and Compounds 399, 183-188 (2005).
assessment that models this phase; reports values for this phase
doi:10.1016/0966-9795(93)90010-s A. Saccone, A.M. Cardinale, S. Delfino, R. Ferro, A contribution to the rare earth intermetallic chemistry: Praseodymium-magnesium alloy system, Intermetallics 1, 151-158 (1993).
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01377-3 A. Saccone, D. Macciò, J.A.J. Robinson, F.H. Hayes, R. Ferro, Smith thermal analysis of selected Pr–Mg alloys, Journal of Alloys and Compounds 317-318, 497-502 (2001).
cited as the source of values for this phase
doi:10.1016/j.calphad.2012.05.005 Y. Kang, L. Jin, P. Chartrand, A.E. Gheribi, K. Bai, P. Wu, CALPHAD 38 (2012) 100–116.
cited as the source of values for this phase

FCC_A1 (Mg–Pr)

Id: phase:mg-pr:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: not stable in 3 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:mg-pr:fcc-a1
tdb: tdb:MgPr-05Guo.tdb:FCC_A1, tdb:MgPr-08Guo.tdb:FCC_A1, tdb:MgPr-15Wan.tdb:FCC_A1

TDB models of FCC_A1 (3): PHASE and CONSTITUENT statements as written

MgPr-05Guo.tdb: FCC_A1, type code %A, sha256 663c0d9edf4eb106…

29: PHASE FCC_A1 %A 2 1 1 !
30: CONST FCC_A1 : MG PR : VA% : !

MgPr-08Guo.tdb: FCC_A1, type code %A, sha256 33b8964cbc88b29c…

31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : MG PR : VA% : !

MgPr-15Wan.tdb: FCC_A1, type code %A, sha256 43684dde82c30e77…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : MG PR : VA% : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2007.05.007 Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008).
assessment that models this phase
doi:10.1016/j.commatsci.2014.11.050 Peisheng Wang, Rainer Schmid-Fetzer, Thermodynamic assessment of the Mg–Pr system, Computational Materials Science 104, 138-142 (2015).
assessment that models this phase
doi:10.1016/j.jallcom.2005.03.033 Cuiping Guo, Zhenmin Du, Thermodynamic assessment of the Mg–Pr system, Journal of Alloys and Compounds 399, 183-188 (2005).
assessment that models this phase

HCP_A3 (Mg–Pr)

Id: phase:mg-pr:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 300–932.95 K, x(Pr) 0–0.00237
Literature: 9 values (9 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:mg-pr:hcp-a3
paper: paper:10.1016/j.calphad.2007.05.007:hcp(Mg), paper:10.1016/j.commatsci.2014.11.050:(Mg), paper:10.1016/j.jallcom.2005.03.033:hcp(Mg)
tdb: tdb:MgPr-05Guo.tdb:HCP_A3, tdb:MgPr-08Guo.tdb:HCP_A3, tdb:MgPr-15Wan.tdb:HCP_A3

TDB models of HCP_A3 (3): PHASE and CONSTITUENT statements as written

MgPr-05Guo.tdb: HCP_A3, type code %A, sha256 663c0d9edf4eb106…

39: PHASE HCP_A3 %A 2 1 0.5 !
40: CONST HCP_A3 : MG% PR : VA% : !

MgPr-08Guo.tdb: HCP_A3, type code %A, sha256 33b8964cbc88b29c…

46: PHASE HCP_A3 %A 2 1 0.5 !
47: CONST HCP_A3 : MG% PR : VA% : !

MgPr-15Wan.tdb: HCP_A3, type code %A, sha256 43684dde82c30e77…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : MG% PR : VA% : !

Example references (6 of 6; assessments first):

doi:10.1016/j.commatsci.2014.11.050 Peisheng Wang, Rainer Schmid-Fetzer, Thermodynamic assessment of the Mg–Pr system, Computational Materials Science 104, 138-142 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2007.05.007 Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jallcom.2005.03.033 Cuiping Guo, Zhenmin Du, Thermodynamic assessment of the Mg–Pr system, Journal of Alloys and Compounds 399, 183-188 (2005).
assessment that models this phase; reports values for this phase
doi:10.1016/0966-9795(93)90010-s A. Saccone, A.M. Cardinale, S. Delfino, R. Ferro, A contribution to the rare earth intermetallic chemistry: Praseodymium-magnesium alloy system, Intermetallics 1, 151-158 (1993).
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01377-3 A. Saccone, D. Macciò, J.A.J. Robinson, F.H. Hayes, R. Ferro, Smith thermal analysis of selected Pr–Mg alloys, Journal of Alloys and Compounds 317-318, 497-502 (2001).
cited as the source of values for this phase
doi:10.1016/j.calphad.2012.05.005 Y. Kang, L. Jin, P. Chartrand, A.E. Gheribi, K. Bai, P. Wu, CALPHAD 38 (2012) 100–116.
cited as the source of values for this phase

LIQUID (Mg–Pr)

Id: phase:mg-pr:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 837.03–2500 K, x(Pr) 0–1
Literature: 69 values (69 accepted) from 3 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:mg-pr:liquid
paper: paper:10.1016/j.calphad.2007.05.007:L, paper:10.1016/j.commatsci.2014.11.050:Liquid, paper:10.1016/j.jallcom.2005.03.033:liq, paper:10.1016/j.jallcom.2005.03.033:liq.
tdb: tdb:MgPr-05Guo.tdb:LIQUID, tdb:MgPr-08Guo.tdb:LIQUID, tdb:MgPr-15Wan.tdb:LIQUID

TDB models of LIQUID (3): PHASE and CONSTITUENT statements as written

MgPr-05Guo.tdb: LIQUID, type code %, sha256 663c0d9edf4eb106…

24: PHASE LIQUID:L % 1 1 !
25: CONST LIQUID:L : MG PR : !

MgPr-08Guo.tdb: LIQUID, type code %, sha256 33b8964cbc88b29c…

26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : MG PR : !

MgPr-15Wan.tdb: LIQUID, type code %, sha256 43684dde82c30e77…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : MG PR : !

Example references (6 of 6; assessments first):

doi:10.1016/j.commatsci.2014.11.050 Peisheng Wang, Rainer Schmid-Fetzer, Thermodynamic assessment of the Mg–Pr system, Computational Materials Science 104, 138-142 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2007.05.007 Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jallcom.2005.03.033 Cuiping Guo, Zhenmin Du, Thermodynamic assessment of the Mg–Pr system, Journal of Alloys and Compounds 399, 183-188 (2005).
assessment that models this phase; reports values for this phase
doi:10.1016/0966-9795(93)90010-s A. Saccone, A.M. Cardinale, S. Delfino, R. Ferro, A contribution to the rare earth intermetallic chemistry: Praseodymium-magnesium alloy system, Intermetallics 1, 151-158 (1993).
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01377-3 A. Saccone, D. Macciò, J.A.J. Robinson, F.H. Hayes, R. Ferro, Smith thermal analysis of selected Pr–Mg alloys, Journal of Alloys and Compounds 317-318, 497-502 (2001).
cited as the source of values for this phase
doi:10.1016/j.calphad.2012.05.005 Y. Kang, L. Jin, P. Chartrand, A.E. Gheribi, K. Bai, P. Wu, CALPHAD 38 (2012) 100–116.
cited as the source of values for this phase

MG12PR_D2B (Mg–Pr)

Id: phase:mg-pr:mg12pr-d2b; status assigned
Structure: Mn12Th · D2_b · tI26 · I4/mmm (139); type st:d2-b-mn12th-ti26; tier A: standard phase name; confidence high
Stoichiometry: Mg 0.9231, Pr 0.0769
Stability: stable in 3 of 3 calculated diagram(s): 300–852.72 K, x(Pr) 0.07692–0.07692
Literature: 17 values (17 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:mg-pr:mg12pr-d2b
paper: paper:10.1016/j.calphad.2007.05.007:Mg12Pr, paper:10.1016/j.commatsci.2014.11.050:PrMg12, paper:10.1016/j.jallcom.2005.03.033:Mg12Pr
tdb: tdb:MgPr-05Guo.tdb:MG12PR_D2B, tdb:MgPr-08Guo.tdb:MG12PR_D2B, tdb:MgPr-15Wan.tdb:MG12PR_D2B

TDB models of MG12PR_D2B (3): PHASE and CONSTITUENT statements as written

MgPr-05Guo.tdb: MG12PR_D2B, type code %, sha256 663c0d9edf4eb106…

49: PHASE MG12PR_D2B % 2 12 1 !
50: CONST MG12PR_D2B : MG : PR : !

MgPr-08Guo.tdb: MG12PR_D2B, type code %, sha256 33b8964cbc88b29c…

56: PHASE MG12PR_D2B % 2 12 1 !
57: CONST MG12PR_D2B : MG : PR : !

MgPr-15Wan.tdb: MG12PR_D2B, type code %, sha256 43684dde82c30e77…

45: PHASE MG12PR_D2B % 2 12 1 !
46: CONST MG12PR_D2B : MG : PR : !

Example references (6 of 6; assessments first):

doi:10.1016/j.commatsci.2014.11.050 Peisheng Wang, Rainer Schmid-Fetzer, Thermodynamic assessment of the Mg–Pr system, Computational Materials Science 104, 138-142 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2007.05.007 Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jallcom.2005.03.033 Cuiping Guo, Zhenmin Du, Thermodynamic assessment of the Mg–Pr system, Journal of Alloys and Compounds 399, 183-188 (2005).
assessment that models this phase; reports values for this phase
doi:10.1016/0966-9795(93)90010-s A. Saccone, A.M. Cardinale, S. Delfino, R. Ferro, A contribution to the rare earth intermetallic chemistry: Praseodymium-magnesium alloy system, Intermetallics 1, 151-158 (1993).
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01377-3 A. Saccone, D. Macciò, J.A.J. Robinson, F.H. Hayes, R. Ferro, Smith thermal analysis of selected Pr–Mg alloys, Journal of Alloys and Compounds 317-318, 497-502 (2001).
cited as the source of values for this phase
doi:10.1016/j.calphad.2012.05.005 Y. Kang, L. Jin, P. Chartrand, A.E. Gheribi, K. Bai, P. Wu, CALPHAD 38 (2012) 100–116.
cited as the source of values for this phase

MG2PR_C15 (Mg–Pr)

Id: phase:mg-pr:mg2pr-c15; status assigned
Structure: Cu2Mg · C15 · cF24 · Fd-3m (227); type st:c15-cu2mg-cf24; tier A: standard phase name; confidence high
Stoichiometry: Mg 0.6667, Pr 0.3333
Stability: stable in 3 of 3 calculated diagram(s): 932.78–1012.8 K, x(Pr) 0.33333–0.33333
Literature: 26 values (26 accepted) from 3 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:mg-pr:mg2pr-c15
paper: paper:10.1016/j.calphad.2007.05.007:Mg2Pr, paper:10.1016/j.commatsci.2014.11.050:Mg2Pr, paper:10.1016/j.commatsci.2014.11.050:PrMg2, paper:10.1016/j.jallcom.2005.03.033:Mg2Pr
tdb: tdb:MgPr-05Guo.tdb:MG2PR_C15, tdb:MgPr-08Guo.tdb:MG2PR_C15, tdb:MgPr-15Wan.tdb:MG2PR_C15

TDB models of MG2PR_C15 (3): PHASE and CONSTITUENT statements as written

MgPr-05Guo.tdb: MG2PR_C15, type code %, sha256 663c0d9edf4eb106…

64: PHASE MG2PR_C15 % 2 2 1 !
65: CONST MG2PR_C15 : MG : PR : !

MgPr-08Guo.tdb: MG2PR_C15, type code %, sha256 33b8964cbc88b29c…

71: PHASE MG2PR_C15 % 2 2 1 !
72: CONST MG2PR_C15 : MG : PR : !

MgPr-15Wan.tdb: MG2PR_C15, type code %, sha256 43684dde82c30e77…

60: PHASE MG2PR_C15 % 2 2 1 !
61: CONST MG2PR_C15 : MG : PR : !

Example references (6 of 6; assessments first):

doi:10.1016/j.commatsci.2014.11.050 Peisheng Wang, Rainer Schmid-Fetzer, Thermodynamic assessment of the Mg–Pr system, Computational Materials Science 104, 138-142 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2007.05.007 Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jallcom.2005.03.033 Cuiping Guo, Zhenmin Du, Thermodynamic assessment of the Mg–Pr system, Journal of Alloys and Compounds 399, 183-188 (2005).
assessment that models this phase; reports values for this phase
doi:10.1016/0966-9795(93)90010-s A. Saccone, A.M. Cardinale, S. Delfino, R. Ferro, A contribution to the rare earth intermetallic chemistry: Praseodymium-magnesium alloy system, Intermetallics 1, 151-158 (1993).
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01377-3 A. Saccone, D. Macciò, J.A.J. Robinson, F.H. Hayes, R. Ferro, Smith thermal analysis of selected Pr–Mg alloys, Journal of Alloys and Compounds 317-318, 497-502 (2001).
cited as the source of values for this phase
doi:10.1016/j.calphad.2012.05.005 Y. Kang, L. Jin, P. Chartrand, A.E. Gheribi, K. Bai, P. Wu, CALPHAD 38 (2012) 100–116.
cited as the source of values for this phase

MG3PR_D03 (Mg–Pr)

Id: phase:mg-pr:mg3pr-d03; status assigned
Structure: BiF3 · D0_3 · cF16 · Fm-3m (225); type st:d0-3-bif3-cf16; tier A: standard phase name; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 300–1063.03 K, x(Pr) 0.17988–0.25
Literature: 35 values (35 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:mg-pr:mg3pr-d03
paper: paper:10.1016/j.calphad.2007.05.007:Mg3Pr, paper:10.1016/j.commatsci.2014.11.050:PrMg3, paper:10.1016/j.jallcom.2005.03.033:Mg3Pr
tdb: tdb:MgPr-05Guo.tdb:MG3PR_D03, tdb:MgPr-08Guo.tdb:MG3PR_D03, tdb:MgPr-15Wan.tdb:MG3PR_D03

TDB models of MG3PR_D03 (3): PHASE and CONSTITUENT statements as written

MgPr-05Guo.tdb: MG3PR_D03, type code %, sha256 663c0d9edf4eb106…

59: PHASE MG3PR_D03 % 2 3 1 !
60: CONST MG3PR_D03 : MG : MG PR% : !

MgPr-08Guo.tdb: MG3PR_D03, type code %, sha256 33b8964cbc88b29c…

66: PHASE MG3PR_D03 % 2 3 1 !
67: CONST MG3PR_D03 : MG : MG PR% : !

MgPr-15Wan.tdb: MG3PR_D03, type code %, sha256 43684dde82c30e77…

55: PHASE MG3PR_D03 % 2 3 1 !
56: CONST MG3PR_D03 : MG : PR : !

Example references (6 of 6; assessments first):

doi:10.1016/j.commatsci.2014.11.050 Peisheng Wang, Rainer Schmid-Fetzer, Thermodynamic assessment of the Mg–Pr system, Computational Materials Science 104, 138-142 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2007.05.007 Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jallcom.2005.03.033 Cuiping Guo, Zhenmin Du, Thermodynamic assessment of the Mg–Pr system, Journal of Alloys and Compounds 399, 183-188 (2005).
assessment that models this phase; reports values for this phase
doi:10.1016/0966-9795(93)90010-s A. Saccone, A.M. Cardinale, S. Delfino, R. Ferro, A contribution to the rare earth intermetallic chemistry: Praseodymium-magnesium alloy system, Intermetallics 1, 151-158 (1993).
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01377-3 A. Saccone, D. Macciò, J.A.J. Robinson, F.H. Hayes, R. Ferro, Smith thermal analysis of selected Pr–Mg alloys, Journal of Alloys and Compounds 317-318, 497-502 (2001).
cited as the source of values for this phase
doi:10.1016/j.calphad.2012.05.005 Y. Kang, L. Jin, P. Chartrand, A.E. Gheribi, K. Bai, P. Wu, CALPHAD 38 (2012) 100–116.
cited as the source of values for this phase

MG41PR5 (Mg–Pr)

Id: phase:mg-pr:mg41pr5; status assigned
Structure: Ce5Mg41 · tI92 · I4/m (87); type st:ce5mg41-ti92; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_structure_token, off_stoichiometric_model); structure as stated in the SGTE crystallographic table for this phase name and system
Stability: stable in 3 of 3 calculated diagram(s): 300–862.94 K, x(Pr) 0.10722–0.1087
Literature: 17 values (17 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:mg-pr:mg41pr5
paper: paper:10.1016/j.calphad.2007.05.007:Mg41Pr5, paper:10.1016/j.commatsci.2014.11.050:Pr5Mg41, paper:10.1016/j.jallcom.2005.03.033:Mg41Pr5
tdb: tdb:MgPr-05Guo.tdb:MG41PR5, tdb:MgPr-08Guo.tdb:MG41PR5, tdb:MgPr-15Wan.tdb:MG41PR5

TDB models of MG41PR5 (3): PHASE and CONSTITUENT statements as written

MgPr-05Guo.tdb: MG41PR5, type code %, sha256 663c0d9edf4eb106…

54: PHASE MG41PR5 % 2 41 5 !
55: CONST MG41PR5 : MG% PR : MG PR% : !

MgPr-08Guo.tdb: MG41PR5, type code %, sha256 33b8964cbc88b29c…

61: PHASE MG41PR5 % 2 41 5 !
62: CONST MG41PR5 : MG : PR : !

MgPr-15Wan.tdb: MG41PR5, type code %, sha256 43684dde82c30e77…

50: PHASE MG41PR5 % 2 41 5 !
51: CONST MG41PR5 : MG : PR : !

Example references (6 of 6; assessments first):

doi:10.1016/j.commatsci.2014.11.050 Peisheng Wang, Rainer Schmid-Fetzer, Thermodynamic assessment of the Mg–Pr system, Computational Materials Science 104, 138-142 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2007.05.007 Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jallcom.2005.03.033 Cuiping Guo, Zhenmin Du, Thermodynamic assessment of the Mg–Pr system, Journal of Alloys and Compounds 399, 183-188 (2005).
assessment that models this phase; reports values for this phase
doi:10.1016/0966-9795(93)90010-s A. Saccone, A.M. Cardinale, S. Delfino, R. Ferro, A contribution to the rare earth intermetallic chemistry: Praseodymium-magnesium alloy system, Intermetallics 1, 151-158 (1993).
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01377-3 A. Saccone, D. Macciò, J.A.J. Robinson, F.H. Hayes, R. Ferro, Smith thermal analysis of selected Pr–Mg alloys, Journal of Alloys and Compounds 317-318, 497-502 (2001).
cited as the source of values for this phase
doi:10.1016/j.calphad.2012.05.005 Y. Kang, L. Jin, P. Chartrand, A.E. Gheribi, K. Bai, P. Wu, CALPHAD 38 (2012) 100–116.
cited as the source of values for this phase

MGPR_B2 (Mg–Pr)

Id: phase:mg-pr:mgpr-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in MgPr-05Guo.tdb also describes the disordered state
Stability: stable in 2 of 2 calculated diagram(s): 300–1071 K, x(Pr) 0.4809–1
Literature: 33 values (33 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:mg-pr:mgpr-b2
paper: paper:10.1016/j.commatsci.2014.11.050:PrMg, paper:10.1016/j.jallcom.2005.03.033:MgPr
tdb: tdb:MgPr-05Guo.tdb:MGPR_B2, tdb:MgPr-15Wan.tdb:MGPR_B2

TDB models of MGPR_B2 (2): PHASE and CONSTITUENT statements as written

MgPr-05Guo.tdb: MGPR_B2, type code %, sha256 663c0d9edf4eb106…

69: PHASE MGPR_B2 % 2 1 1 !
70: CONST MGPR_B2 : MG% PR : MG PR% : !

MgPr-15Wan.tdb: MGPR_B2, type code %, sha256 43684dde82c30e77…

65: PHASE MGPR_B2 % 2 1 1 !
66: CONST MGPR_B2 : MG : MG PR% : !

Example references (6 of 6; assessments first):

doi:10.1016/j.commatsci.2014.11.050 Peisheng Wang, Rainer Schmid-Fetzer, Thermodynamic assessment of the Mg–Pr system, Computational Materials Science 104, 138-142 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.jallcom.2005.03.033 Cuiping Guo, Zhenmin Du, Thermodynamic assessment of the Mg–Pr system, Journal of Alloys and Compounds 399, 183-188 (2005).
assessment that models this phase; reports values for this phase
doi:10.1016/0966-9795(93)90010-s A. Saccone, A.M. Cardinale, S. Delfino, R. Ferro, A contribution to the rare earth intermetallic chemistry: Praseodymium-magnesium alloy system, Intermetallics 1, 151-158 (1993).
cited as the source of values for this phase
doi:10.1016/j.calphad.2007.05.007 Cuiping Guo, Zhenmin Du, Changrong Li, A thermodynamic description of the Mg–Pr–Y system, Calphad 32, 177-187 (2008).
cited as the source of values for this phase
doi:10.1016/s0925-8388(00)01377-3 A. Saccone, D. Macciò, J.A.J. Robinson, F.H. Hayes, R. Ferro, Smith thermal analysis of selected Pr–Mg alloys, Journal of Alloys and Compounds 317-318, 497-502 (2001).
cited as the source of values for this phase
doi:10.1016/j.calphad.2012.05.005 Y. Kang, L. Jin, P. Chartrand, A.E. Gheribi, K. Bai, P. Wu, CALPHAD 38 (2012) 100–116.
cited as the source of values for this phase

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735970
R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23736065

Also cite B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

@misc{orchid_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}