Nb–C system

0 accepted literature values from 0 paper(s); 5 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
NbC-01Lee.tdb	B.-J. Lee, Metall. Mater. Trans. A, 32A, 2423-39(2001). doi:10.1007/s11661-001-0033-x	`9f0b0d890e5bd1f160096dfb21086fc7a73d5938e2a58725f7c2c2662335a974`	viewer · TDB · JSON
NbC-13Khv.tdb	A.V. Khvan, B. Hallstedt, Calphad, 40, 10-15(2013), based on B.-J. Lee, Metall. Mater. Trans. A, 32A, 2423-39(2001). doi:10.1016/j.calphad.2012.11.001	`4ae1654829e3803695e46c6d9bf6a73b89a1419068eaa19bd7b6ca49b06b9b8e`	viewer · TDB · JSON
NbC-16Pen.tdb	Y. Peng, P. Zhou, M. Bu, W. Zhang, Y. Du, Calphad, 53, 10-19(2016). doi:10.1016/j.calphad.2016.02.004	`22d77b32d5bd2a4f89ba7ce77386d0c1081b4922a54ed8fa7ddb3d07cda05072`	viewer · TDB · JSON
NbC-90Hua.tdb	W. Huang, Mater. Sci. Technol., 6, 687-94(1990). doi:10.1179/mst.1990.6.8.687	`3b357fde12f03aea05f1064e476a1af4384aa6425dfecc9de707c44bf0443fa7`	viewer · TDB · JSON
NbC-97Hua-LB.tdb	W. Huang, M. Selleby, Z. Metallkd., 88, 55-62(1997). doi:10.3139/ijmr-1997-0010	`81f536c9df24e38143067b1412410a2a0b9f4aac56f52fda0d050c2c583bf8f9`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
NbC-01Lee.tdb	3562.55	FCC_A1 (x(C) 0.49656) + LIQUID (x(C) 0.64882) + GRAPHITE_A9 (x(C) 1)
NbC-01Lee.tdb	3562.55	FCC_A1 (x(C) 0.49657) + LIQUID (x(C) 0.64889) + GRAPHITE_A9 (x(C) 1)
NbC-01Lee.tdb	3199.32	LIQUID (x(C) 0.22959) + HCP_A3 (x(C) 0.32251) + FCC_A1 (x(C) 0.39999)
NbC-01Lee.tdb	2602.33	BCC_A2 (x(C) 0.05461) + LIQUID (x(C) 0.09896) + HCP_A3 (x(C) 0.30045)
NbC-13Khv.tdb	3562.55	FCC_A1 (x(C) 0.49656) + LIQUID (x(C) 0.64882) + GRAPHITE_A9 (x(C) 1)
NbC-13Khv.tdb	3562.55	FCC_A1 (x(C) 0.49657) + LIQUID (x(C) 0.64889) + GRAPHITE_A9 (x(C) 1)
NbC-13Khv.tdb	3199.32	LIQUID (x(C) 0.22959) + HCP_A3 (x(C) 0.32251) + FCC_A1 (x(C) 0.39999)
NbC-13Khv.tdb	2597.4	BCC_A2 (x(C) 0.04999) + LIQUID (x(C) 0.09818) + HCP_A3 (x(C) 0.30022)
NbC-16Pen.tdb	3570.46	FCC_A1 (x(C) 0.49765) + LIQUID (x(C) 0.63269) + GRAPHITE_A9 (x(C) 1)
NbC-16Pen.tdb	3282.3	LIQUID (x(C) 0.24651) + HCP_A3 (x(C) 0.31823) + FCC_A1 (x(C) 0.37717)
NbC-16Pen.tdb	2609.65	BCC_A2 (x(C) 0.0506) + LIQUID (x(C) 0.10144) + HCP_A3 (x(C) 0.29052)
NbC-90Hua.tdb	3572.46	FCC_A1 (x(C) 0.48678) + LIQUID (x(C) 0.60158) + GRAPHITE_A9 (x(C) 1)
NbC-90Hua.tdb	2798.98	LIQUID (x(C) 0.14022) + FCC_A1 (x(C) 0.29181) + HCP_A3 (x(C) 0.29763)
NbC-90Hua.tdb	2611.46	BCC_A2 (x(C) 0.05065) + LIQUID (x(C) 0.10333) + HCP_A3 (x(C) 0.28816)
NbC-97Hua-LB.tdb	3570.46	FCC_A1 (x(C) 0.49765) + LIQUID (x(C) 0.63269) + GRAPHITE_A9 (x(C) 1)
NbC-97Hua-LB.tdb	3282.3	LIQUID (x(C) 0.24651) + HCP_A3 (x(C) 0.31823) + FCC_A1 (x(C) 0.37717)
NbC-97Hua-LB.tdb	2612.75	BCC_A2 (x(C) 0.05224) + LIQUID (x(C) 0.10191) + HCP_A3 (x(C) 0.29066)

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}
}