Cd–Pr phases

12 phases (tier A 7, tier C 3, liquid 1, needs_review 1); 11 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 · Cd–Pr system page · Markdown · field reference

Phases of the Cd–Pr system (12)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:cd-pr:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 710.48–1989 K, x(Pr) 0.79643–1	4	1
CD11PR_D2E phase:cd-pr:cd11pr-d2e	BaHg11 · D2_e · cP36 · Pm-3m (221)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–833.17 K, x(Pr) 0.08333–0.08333	4	1
CD2PR phase:cd-pr:cd2pr		needs_review	stable in 1 of 1 calculated diagram(s): 300–1256.51 K, x(Pr) 0.33333–0.33333	5	1
CD3PR_D03 phase:cd-pr:cd3pr-d03	BiF3 · D0_3 · cF16 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1142.58 K, x(Pr) 0.25–0.25	7	1
CD45PR11 phase:cd-pr:cd45pr11	Cd45Sm11 · cF448 · F-43m (216)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1069.74 K, x(Pr) 0.19643–0.19643	2	1
CD58PR13 phase:cd-pr:cd58pr13	Gd13Zn58 · hP142 · P6_3/mmc (194)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1147.8 K, x(Pr) 0.1831–0.1831	10	1
CD6PR phase:cd-pr:cd6pr	Cd6Y · cI184 · Im-3 (204)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1011.15 K, x(Pr) 0.14286–0.14286	5	1
CDPR_B2 phase:cd-pr:cdpr-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1269.71 K, x(Pr) 0.5–0.53095	8	1
DHCP phase:cd-pr:dhcp-a3	alpha-La · A3' · hP4 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1068 K, x(Pr) 0.95345–1	2	1
FCC_A1 phase:cd-pr:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
HCP_A3 phase:cd-pr:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–594.16 K, x(Pr) 0–0	2	1
LIQUID phase:cd-pr:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 594.16–2500 K, x(Pr) 0–1	20	1

BCC_A2 (Cd–Pr)

Id: phase:cd-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 1 of 1 calculated diagram(s): 710.48–1989 K, x(Pr) 0.79643–1
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-pr:bcc-a2
paper: paper:10.1016/j.calphad.2014.06.005:β-Pr
tdb: tdb:CdPr-14Rei.tdb:BCC_A2

TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

CdPr-14Rei.tdb: BCC_A2, type code %B, sha256 4d952d7b09274786…

38: PHASE BCC_A2 %B 2 1 3 !
39: CONST BCC_A2 : CD PR% : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase; reports values for this phase

CD11PR_D2E (Cd–Pr)

Id: phase:cd-pr:cd11pr-d2e; status assigned
Structure: BaHg11 · D2_e · cP36 · Pm-3m (221); type st:d2-e-bahg11-cp36; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaacqizt and oqmd-2052297, space group 221
Stoichiometry: Cd 0.9167, Pr 0.0833
Stability: stable in 1 of 1 calculated diagram(s): 300–833.17 K, x(Pr) 0.08333–0.08333
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:cd-pr:cd11pr-d2e
mp: mp:mp-aaacqizt
oqmd: oqmd:oqmd-2052297
paper: paper:10.1016/j.calphad.2014.06.005:Cd11Pr
tdb: tdb:CdPr-14Rei.tdb:CD11PR_D2E

TDB models of CD11PR_D2E (1): PHASE and CONSTITUENT statements as written

CdPr-14Rei.tdb: CD11PR_D2E, type code %, sha256 4d952d7b09274786…

53: PHASE CD11PR_D2E % 2 11 1 !
54: CONST CD11PR_D2E : CD : PR : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase; reports values for this phase

CD2PR (Cd–Pr)

Id: phase:cd-pr:cd2pr; status needs_review
No structure assigned. Why: mp_oqmd_space_groups_differ; no_structure_token
Candidate (dft_mp): P6/mmm (191) — on-hull MP PrCd2 at x(PR)=0.3333
Candidate (dft_oqmd): P2/m (10) — on-hull OQMD Cd2 Pr1 at x(PR)=0.3333
Candidate (tdb_comment): Cd2Ce · hP3 · P-3m1 — CdPr-14Rei.tdb: 'Prototype Cd2Ce (hP3, P-3m1)'
Stoichiometry: Cd 0.6667, Pr 0.3333
Stability: stable in 1 of 1 calculated diagram(s): 300–1256.51 K, x(Pr) 0.33333–0.33333
Literature: 5 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cd-pr:cd2pr
paper: paper:10.1016/j.calphad.2014.06.005:Cd2Pr, paper:10.1016/j.calphad.2014.06.005:α-Cd2Pr
tdb: tdb:CdPr-14Rei.tdb:CD2PR

TDB models of CD2PR (1): PHASE and CONSTITUENT statements as written

CdPr-14Rei.tdb: CD2PR, type code %, sha256 4d952d7b09274786…

78: PHASE CD2PR % 2 2 1 !
79: CONST CD2PR : CD : PR : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase; reports values for this phase

CD3PR_D03 (Cd–Pr)

Id: phase:cd-pr:cd3pr-d03; status assigned
Structure: BiF3 · D0_3 · cF16 · Fm-3m (225); type st:d0-3-bif3-cf16; tier A: standard phase name; confidence high
Stoichiometry: Cd 0.7500, Pr 0.2500
Stability: stable in 1 of 1 calculated diagram(s): 300–1142.58 K, x(Pr) 0.25–0.25
Literature: 7 values (7 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-pr:cd3pr-d03
paper: paper:10.1016/j.calphad.2014.06.005:Cd3Pr
tdb: tdb:CdPr-14Rei.tdb:CD3PR_D03

TDB models of CD3PR_D03 (1): PHASE and CONSTITUENT statements as written

CdPr-14Rei.tdb: CD3PR_D03, type code %, sha256 4d952d7b09274786…

73: PHASE CD3PR_D03 % 2 3 1 !
74: CONST CD3PR_D03 : CD : PR : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase; reports values for this phase

CD45PR11 (Cd–Pr)

Id: phase:cd-pr:cd45pr11; status assigned
Structure: Cd45Sm11 · cF448 · F-43m (216); type st:cd45sm11-cf448; 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_on_hull_entry_in_oqmd, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Cd 0.8036, Pr 0.1964
Stability: stable in 1 of 1 calculated diagram(s): 300–1069.74 K, x(Pr) 0.19643–0.19643
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-pr:cd45pr11
paper: paper:10.1016/j.calphad.2014.06.005:Cd45Pr11
tdb: tdb:CdPr-14Rei.tdb:CD45PR11

TDB models of CD45PR11 (1): PHASE and CONSTITUENT statements as written

CdPr-14Rei.tdb: CD45PR11, type code %, sha256 4d952d7b09274786…

68: PHASE CD45PR11 % 2 45 11 !
69: CONST CD45PR11 : CD : PR : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase; reports values for this phase

CD58PR13 (Cd–Pr)

Id: phase:cd-pr:cd58pr13; status assigned
Structure: Gd13Zn58 · hP142 · P6_3/mmc (194); type st:gd13zn58-hp142; 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_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Cd 0.8169, Pr 0.1831
Stability: stable in 1 of 1 calculated diagram(s): 300–1147.8 K, x(Pr) 0.1831–0.1831
Literature: 10 values (10 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-pr:cd58pr13
paper: paper:10.1016/j.calphad.2014.06.005:Cd58Pr13
tdb: tdb:CdPr-14Rei.tdb:CD58PR13

TDB models of CD58PR13 (1): PHASE and CONSTITUENT statements as written

CdPr-14Rei.tdb: CD58PR13, type code %, sha256 4d952d7b09274786…

63: PHASE CD58PR13 % 2 58 13 !
64: CONST CD58PR13 : CD : PR : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase; reports values for this phase

CD6PR (Cd–Pr)

Id: phase:cd-pr:cd6pr; status assigned
Structure: Cd6Y · cI184 · Im-3 (204); type st:cd6y-ci184; 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_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Cd 0.8571, Pr 0.1429
Stability: stable in 1 of 1 calculated diagram(s): 300–1011.15 K, x(Pr) 0.14286–0.14286
Literature: 5 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-pr:cd6pr
paper: paper:10.1016/j.calphad.2014.06.005:Cd6Pr
tdb: tdb:CdPr-14Rei.tdb:CD6PR

TDB models of CD6PR (1): PHASE and CONSTITUENT statements as written

CdPr-14Rei.tdb: CD6PR, type code %, sha256 4d952d7b09274786…

58: PHASE CD6PR % 2 6 1 !
59: CONST CD6PR : CD : PR : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase; reports values for this phase

CDPR_B2 (Cd–Pr)

Id: phase:cd-pr:cdpr-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–1269.71 K, x(Pr) 0.5–0.53095
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-pr:cdpr-b2
paper: paper:10.1016/j.calphad.2014.06.005:CdPr
tdb: tdb:CdPr-14Rei.tdb:CDPR_B2

TDB models of CDPR_B2 (1): PHASE and CONSTITUENT statements as written

CdPr-14Rei.tdb: CDPR_B2, type code %, sha256 4d952d7b09274786…

83: PHASE CDPR_B2 % 2 1 1 !
84: CONST CDPR_B2 : CD% PR : PR : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase; reports values for this phase

DHCP (Cd–Pr)

Id: phase:cd-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 1 of 1 calculated diagram(s): 300–1068 K, x(Pr) 0.95345–1
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:cd-pr:dhcp-a3, corpus:phase:cd-pr:dhcp
paper: paper:10.1016/j.calphad.2014.06.005:α-Pr
tdb: tdb:CdPr-14Rei.tdb:DHCP

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

CdPr-14Rei.tdb: DHCP, type code %, sha256 4d952d7b09274786…

48: PHASE DHCP % 1 1 !
49: CONST DHCP : CD PR% : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase; reports values for this phase

FCC_A1 (Cd–Pr)

Id: phase:cd-pr:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stoichiometry: Cd 1.0000
Stability: not stable in 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:cd-pr:fcc-a1
tdb: tdb:CdPr-14Rei.tdb:FCC_A1

TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

CdPr-14Rei.tdb: FCC_A1, type code %A, sha256 4d952d7b09274786…

33: PHASE FCC_A1 %A 2 1 1 !
34: CONST FCC_A1 : CD : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase

HCP_A3 (Cd–Pr)

Id: phase:cd-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
Stoichiometry: Cd 1.0000
Stability: stable in 1 of 1 calculated diagram(s): 300–594.16 K, x(Pr) 0–0
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-pr:hcp-a3
paper: paper:10.1016/j.calphad.2014.06.005:Cd
tdb: tdb:CdPr-14Rei.tdb:HCP_A3

TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written

CdPr-14Rei.tdb: HCP_A3, type code %A, sha256 4d952d7b09274786…

43: PHASE HCP_A3 %A 2 1 0.5 !
44: CONST HCP_A3 : CD : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase; reports values for this phase

LIQUID (Cd–Pr)

Id: phase:cd-pr:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 594.16–2500 K, x(Pr) 0–1
Literature: 20 values (20 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:cd-pr:liquid
paper: paper:10.1016/j.calphad.2014.06.005:L
tdb: tdb:CdPr-14Rei.tdb:LIQUID

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

CdPr-14Rei.tdb: LIQUID, type code %, sha256 4d952d7b09274786…

28: PHASE LIQUID:L % 1 1 !
29: CONST LIQUID:L : CD PR : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2014.06.005 Thomas L. Reichmann, Klaus W. Richter, Simona Delsante, Gabriella Borzone, Herbert Ipser, Enthalpies of formation of Cd–Pr intermetallic compounds and thermodynamic assessment of the Cd–Pr system, Calphad 47, 56-62 (2014).
assessment that models this phase; reports 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}
}