{
  "counts": {
    "above_hull": 0,
    "entries": 4,
    "intervals": 3,
    "vertices": 4
  },
  "elements": [
    "CR",
    "FE"
  ],
  "flags": [
    "miscibility_gap",
    "no_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "CR": {
          "energy": -7019.187894387,
          "phase": "BCC_A2"
        },
        "FE": {
          "energy": -8248.160074270376,
          "phase": "BCC_A2"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                0.0,
                22.37197783585552,
                -0.013943587246078692,
                -0.0029685700608581556
              ]
            ],
            "knots": [
              0.0,
              0.0009340976206118477
            ],
            "max_abs_error": 0.000320614268189523
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.0,
                0.021415325170884236,
                -7.621812099459224e-05,
                -2.18913984264546e-05
              ]
            ],
            "knots": [
              0.0,
              0.0009340976206118477
            ],
            "max_abs_error": 2.777302777237124e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              0.0,
              15.986998635980143,
              0.008780845825903327,
              0.0035583502585438964
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.0,
            0.0009340976206118477
          ],
          "max_abs_error": 0.0005074385237664458,
          "phase": "BCC_A2#1",
          "x_hi": 0.0009340976206118477,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": 22.107650747220386,
            "slope": 264.87052944866355
          },
          "entropy": {
            "intercept": 0.08197289397189211,
            "slope": 1.3766312813455028
          },
          "intercept": -2.33256759049949,
          "kind": "two_phase",
          "left": {
            "phase": "BCC_A2#1",
            "x": 0.0009340976206118477
          },
          "mu_a_rel": -2.33256759049949,
          "mu_b_rel": -147.90465467499874,
          "right": {
            "phase": "BCC_A2#2",
            "x": 0.9663775832625552
          },
          "slope": -145.57208708449926,
          "x_hi": 0.9663775832625552,
          "x_lo": 0.0009340976206118477
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                278.07259287329333,
                -349.06509511126876,
                66.02415747820592,
                4.968344759769565
              ]
            ],
            "knots": [
              0.9663775832625552,
              1.0
            ],
            "max_abs_error": 0.004656814399140785
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.18912068721499886,
                -0.21550942934672815,
                0.023953693288341987,
                0.0024350488433872997
              ]
            ],
            "knots": [
              0.9663775832625552,
              1.0
            ],
            "max_abs_error": 4.87734592696798e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              221.68625998014,
              -284.8109587520532,
              58.88236382471135,
              4.24233494720184
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.9663775832625552,
            1.0
          ],
          "max_abs_error": 0.0032493741955050837,
          "phase": "BCC_A2#2",
          "x_hi": 1.0,
          "x_lo": 0.9663775832625552
        }
      ],
      "phase_instances": {
        "BCC_A2#1": "BCC_A2",
        "BCC_A2#2": "BCC_A2"
      },
      "temperature_K": 298.15,
      "vertices": [
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": 0.0,
          "enthalpy": 0.0,
          "entries_at_x": 1,
          "entropy": 0.0,
          "formula": "",
          "nsites": null,
          "phase": "BCC_A2#1",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -2.468546130672621,
          "energy_per_atom": -2.468546130672621,
          "enthalpy": 22.355065678548584,
          "entries_at_x": 1,
          "entropy": 0.08325880197625679,
          "formula": "",
          "nsites": null,
          "phase": "BCC_A2#1",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0009340976206118477
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -143.01016929770412,
          "energy_per_atom": -143.01016929770412,
          "enthalpy": 278.07259287329333,
          "entries_at_x": 1,
          "entropy": 1.4123185046821938,
          "formula": "",
          "nsites": null,
          "phase": "BCC_A2#2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.9663775832625552
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": 0.0,
          "enthalpy": 0.0,
          "entries_at_x": 1,
          "entropy": 0.0,
          "formula": "",
          "nsites": null,
          "phase": "BCC_A2#2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 1.0
        }
      ]
    }
  ],
  "mp_agreement": {
    "comparable": false,
    "comparable_note": "CALPHAD isotherms have no upstream stability flag to compare against",
    "max_abs_delta_energy_above_hull": 0.0,
    "only_mp_stable": [],
    "only_ours_stable": [],
    "stable_sets_match": true
  },
  "provenance": {
    "assessment": "CrFe-11Xio",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:28:22Z",
    "phase_families": {},
    "sample_conditions": {
      "endpoint_tol": 1.0,
      "fit_samples": 65,
      "order_tol": 0.0001,
      "pressure_Pa": 101325.0,
      "redundant_tol": 1.0,
      "refine_tol": 1e-07,
      "step": 0.002,
      "temperature_K": 298.15
    },
    "source_path": "databases/sgte-binary/CrFe-11Xio.tdb",
    "source_sha256": "c6bdc1ced82c0a3100b8bec5986b6ac6e0c92156c2d98346def6ace07bda28e7"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "CR-FE",
  "x_element": "FE"
}