{
  "counts": {
    "above_hull": 0,
    "entries": 6,
    "intervals": 5,
    "vertices": 6
  },
  "elements": [
    "CO",
    "SI"
  ],
  "flags": [
    "has_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "CO": {
          "energy": -8956.449491565605,
          "phase": "HCP_A3"
        },
        "SI": {
          "energy": -5608.21174601323,
          "phase": "DIAMOND_A4"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                0.0,
                -10177.535174057823,
                1522.1827795807794,
                -36.88415108110257
              ]
            ],
            "knots": [
              0.0,
              0.07368836772352787
            ],
            "max_abs_error": 0.0037807763892487856
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.0,
                -1.399826824950701,
                0.6020195631916081,
                -0.028313305573308023
              ]
            ],
            "knots": [
              0.0,
              0.07368836772352787
            ],
            "max_abs_error": 2.3785109825036344e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              0.0,
              -9760.176806198286,
              1342.690646814447,
              -28.44253902415312
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.0,
            0.07368836772352787
          ],
          "max_abs_error": 0.003910355369498575,
          "phase": "HCP_A3",
          "x_hi": 0.07368836772352787,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -1008.0730545153319,
            "slope": -104279.19261114731
          },
          "entropy": {
            "intercept": 1.5678996448955598,
            "slope": -2.80476008631536
          },
          "intercept": -1475.5423336409385,
          "kind": "two_phase",
          "left": {
            "phase": "HCP_A3",
            "x": 0.07368836772352787
          },
          "mu_a_rel": -1475.5423336409385,
          "mu_b_rel": -104918.49572505339,
          "right": {
            "phase": "CO2SI_C37",
            "x": 0.3333333333333333
          },
          "slope": -103442.95339141245,
          "x_hi": 0.3333333333333333,
          "x_lo": 0.07368836772352787
        },
        {
          "enthalpy": {
            "intercept": -16926.4478659759,
            "slope": -56524.0681767656
          },
          "entropy": {
            "intercept": 6.686321357824328,
            "slope": -18.160025225101666
          },
          "intercept": -18919.974578811252,
          "kind": "two_phase",
          "left": {
            "phase": "CO2SI_C37",
            "x": 0.3333333333333333
          },
          "mu_a_rel": -18919.974578811252,
          "mu_b_rel": -70029.63123471275,
          "right": {
            "phase": "COSI_B20",
            "x": 0.5
          },
          "slope": -51109.6566559015,
          "x_hi": 0.5,
          "x_lo": 0.3333333333333333
        },
        {
          "enthalpy": {
            "intercept": -86797.89219978143,
            "slope": 83218.82049084546
          },
          "entropy": {
            "intercept": -8.605026868334901,
            "slope": 12.422671227216792
          },
          "intercept": -84232.30343898738,
          "kind": "two_phase",
          "left": {
            "phase": "COSI_B20",
            "x": 0.5
          },
          "mu_a_rel": -84232.30343898738,
          "mu_b_rel": -4717.302374536608,
          "right": {
            "phase": "COSI2_C1",
            "x": 0.6666666666666666
          },
          "slope": 79515.00106445077,
          "x_hi": 0.6666666666666666,
          "x_lo": 0.5
        },
        {
          "enthalpy": {
            "intercept": -93956.03561765337,
            "slope": 93956.03561765337
          },
          "entropy": {
            "intercept": -0.9697381505711212,
            "slope": 0.9697381505711212
          },
          "intercept": -93666.90818806061,
          "kind": "two_phase",
          "left": {
            "phase": "COSI2_C1",
            "x": 0.6666666666666666
          },
          "mu_a_rel": -93666.90818806061,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "DIAMOND_A4",
            "x": 1.0
          },
          "slope": 93666.90818806061,
          "x_hi": 1.0,
          "x_lo": 0.6666666666666666
        }
      ],
      "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": "HCP_A3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -9098.084721555093,
          "energy_per_atom": -9098.084721555093,
          "enthalpy": -8692.236545558146,
          "entries_at_x": 1,
          "entropy": 1.3612214522788797,
          "formula": "",
          "nsites": null,
          "phase": "HCP_A3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.07368836772352787
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -35956.52679744508,
          "energy_per_atom": -35956.52679744508,
          "enthalpy": -35767.803924897766,
          "entries_at_x": 1,
          "entropy": 0.6329796161237731,
          "formula": "",
          "nsites": null,
          "phase": "CO2SI_C37",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.3333333333333333
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -44474.802906762,
          "energy_per_atom": -44474.802906762,
          "enthalpy": -45188.4819543587,
          "entries_at_x": 1,
          "entropy": -2.3936912547265052,
          "formula": "",
          "nsites": null,
          "phase": "COSI_B20",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.5
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -31222.30272935354,
          "energy_per_atom": -31222.30272935354,
          "enthalpy": -31318.67853921779,
          "entries_at_x": 1,
          "entropy": -0.3232460501903738,
          "formula": "",
          "nsites": null,
          "phase": "COSI2_C1",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.6666666666666666
        },
        {
          "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": "DIAMOND_A4",
          "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": "CoSi-92Cho-LB",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:26:16Z",
    "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/CoSi-92Cho-LB.tdb",
    "source_sha256": "9fb5aa520ab17aa5cab74dd30e406ecbd7d0ba3318df847e7d1ccdee473950c2"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "CO-SI",
  "x_element": "SI"
}