Hf–B system

0 accepted literature values from 0 paper(s); 4 calculated phase diagram(s).

Data: interactive phase diagram · Markdown

Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
HfB-10Kau.tdb	L. Kaufman, G. Cacciamani, M.L. Muolo, F. Valenza, A. Passerone, Calphad, 34, 2-5(2010). doi:10.1016/j.calphad.2009.10.005	`c2047bb2395431ba79be3dbc33e65a3b9340fa2c014e7ba030c7a81318dbe806`	viewer · TDB · JSON
HfB-11Cac.tdb	G. Cacciamani, P. Riani, F. Valenza, Calphad, 35, 601-19(2011). doi:10.1016/j.calphad.2011.10.003	`5df78501ac600909d9c9118d03216d01e9e466a9c94874b759ddf11a3866f9fb`	viewer · TDB · JSON
HfB-21Pan.tdb	Y. Pan, L. Huang, J. Zhang, Y. Du, F. Luo, S. Zhang, J. Phase Equilib. Diffus., 42, 864-78(2021). doi:10.1007/s11669-021-00928-3	`af0cbca19fdb3a310c0579bcfd86e9d9b44c6d4f1f09d930be8e2f1bb0cbfccc`	viewer · TDB · JSON
HfB-97Bit-LB.tdb	H. Bittermann, P. Rogl, J. Phase Equilib., 18, 24-47(1997). doi:10.1007/BF02646757	`be69f82e1247105b17757743d8aab790528a5319dbe08ceef5999eccc2f06182`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
HfB-10Kau.tdb	2506	BCC_A2 (x(B) 0) + LIQUID (x(B) 0) + MB2_C32 (x(B) 0.66667)
HfB-10Kau.tdb	2380.45	LIQUID (x(B) 0.16851) + MB_B27 (x(B) 0.5) + MB2_C32 (x(B) 0.66667)
HfB-10Kau.tdb	2380.45	LIQUID (x(B) 0.16857) + MB_B27 (x(B) 0.5) + MB2_C32 (x(B) 0.66667)
HfB-10Kau.tdb	2380.45	LIQUID (x(B) 0.16843) + MB_B27 (x(B) 0.5) + MB2_C32 (x(B) 0.66667)
HfB-10Kau.tdb	2338.87	MB2_C32 (x(B) 0.66667) + LIQUID (x(B) 0.99123) + BETA_RHOMBO_B (x(B) 1)
HfB-10Kau.tdb	2279.19	BCC_A2 (x(B) 0.04944) + LIQUID (x(B) 0.12126) + MB_B27 (x(B) 0.5)
HfB-10Kau.tdb	2279.19	BCC_A2 (x(B) 0.04931) + LIQUID (x(B) 0.12111) + MB_B27 (x(B) 0.5)
HfB-10Kau.tdb	2044.8	BCC_A2 (x(B) 0.01567) + HCP_A3 (x(B) 0.02014) + MB_B27 (x(B) 0.5)
HfB-10Kau.tdb	2044.8	BCC_A2 (x(B) 0.01556) + HCP_A3 (x(B) 0.02002) + MB_B27 (x(B) 0.5)
HfB-11Cac.tdb	2377.15	LIQUID (x(B) 0.21947) + MB_B27 (x(B) 0.5) + MB2_C32 (x(B) 0.66667)
HfB-11Cac.tdb	2377.15	LIQUID (x(B) 0.21948) + MB_B27 (x(B) 0.5) + MB2_C32 (x(B) 0.66667)
HfB-11Cac.tdb	2377.15	LIQUID (x(B) 0.21944) + MB_B27 (x(B) 0.5) + MB2_C32 (x(B) 0.66667)
HfB-11Cac.tdb	2338.32	MB2_C32 (x(B) 0.67697) + LIQUID (x(B) 0.99043) + BETA_RHOMBO_B (x(B) 1)
HfB-11Cac.tdb	2153.63	BCC_A2 (x(B) 0.00965) + LIQUID (x(B) 0.15) + MB_B27 (x(B) 0.5)
HfB-11Cac.tdb	2153.63	BCC_A2 (x(B) 0.00964) + LIQUID (x(B) 0.14997) + MB_B27 (x(B) 0.5)
HfB-11Cac.tdb	2063.78	BCC_A2 (x(B) 0.00722) + HCP_A3 (x(B) 0.01471) + MB_B27 (x(B) 0.5)
HfB-21Pan.tdb	2373.37	LIQUID (x(B) 0.22139) + HFB_B27 (x(B) 0.49968) + HFB2_C32 (x(B) 0.66369)
HfB-21Pan.tdb	2337.19	HFB2_C32 (x(B) 0.66667) + LIQUID (x(B) 0.98942) + BETA_RHOMBO_B (x(B) 1)
HfB-21Pan.tdb	2148.11	BCC_A2 (x(B) 0.00982) + LIQUID (x(B) 0.15153) + HFB_B27 (x(B) 0.49967)
HfB-21Pan.tdb	2065.79	BCC_A2 (x(B) 0.00755) + HCP_A3 (x(B) 0.01532) + HFB_B27 (x(B) 0.49975)
HfB-97Bit-LB.tdb	2377.15	LIQUID (x(B) 0.21947) + MB_B27 (x(B) 0.5) + MB2_C32 (x(B) 0.66667)
HfB-97Bit-LB.tdb	2377.15	LIQUID (x(B) 0.21948) + MB_B27 (x(B) 0.5) + MB2_C32 (x(B) 0.66667)
HfB-97Bit-LB.tdb	2377.15	LIQUID (x(B) 0.21943) + MB_B27 (x(B) 0.5) + MB2_C32 (x(B) 0.66667)
HfB-97Bit-LB.tdb	2337.91	MB2_C32 (x(B) 0.66667) + LIQUID (x(B) 0.99007) + BETA_RHOMBO_B (x(B) 1)
HfB-97Bit-LB.tdb	2153.63	BCC_A2 (x(B) 0.00965) + LIQUID (x(B) 0.15) + MB_B27 (x(B) 0.5)
HfB-97Bit-LB.tdb	2153.63	BCC_A2 (x(B) 0.00964) + LIQUID (x(B) 0.14997) + MB_B27 (x(B) 0.5)
HfB-97Bit-LB.tdb	2063.78	BCC_A2 (x(B) 0.00722) + HCP_A3 (x(B) 0.01471) + MB_B27 (x(B) 0.5)

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735859
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; the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); 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). 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_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@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}
}