{
  "counts": {
    "above_hull": 0,
    "entries": 6,
    "intervals": 5,
    "vertices": 6
  },
  "elements": [
    "CO",
    "CR"
  ],
  "flags": [
    "has_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "CO": {
          "energy": -8956.449344832043,
          "phase": "HCP_A3"
        },
        "CR": {
          "energy": -7019.328355078812,
          "phase": "BCC_A2"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                0.0,
                1.8335908123219296,
                0.0034992292436093475,
                -0.0016438992601375269
              ]
            ],
            "knots": [
              0.0,
              0.00010490170634628942
            ],
            "max_abs_error": 0.00023580304119608098
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.0,
                0.000617151953068507,
                3.382314322996011e-05,
                -1.6912213243768784e-05
              ]
            ],
            "knots": [
              0.0,
              0.00010490170634628942
            ],
            "max_abs_error": 2.426665524831161e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              0.0,
              1.6495869574805448,
              -0.006585140763015085,
              0.003398477004618039
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.0,
            0.00010490170634628942
          ],
          "max_abs_error": 0.00048770728585956213,
          "phase": "HCP_A3",
          "x_hi": 0.00010490170634628942,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": 2.5072565002701865,
            "slope": -6404.189039090391
          },
          "entropy": {
            "intercept": 0.009282336994951363,
            "slope": 2.0534887980215104
          },
          "intercept": -0.2602722747750549,
          "kind": "two_phase",
          "left": {
            "phase": "HCP_A3",
            "x": 0.00010490170634628942
          },
          "mu_a_rel": -0.2602722747750549,
          "mu_b_rel": -7016.6969964953,
          "right": {
            "phase": "SIGMA_D8B",
            "x": 0.6586820821659584
          },
          "slope": -7016.436724220524,
          "x_hi": 0.6586820821659584,
          "x_lo": 0.00010490170634628942
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -4215.817314352197,
                -161.37078758746839,
                -0.25544512833931776,
                0.2582304520290677
              ]
            ],
            "knots": [
              0.6586820821659584,
              0.6666649944382855
            ],
            "max_abs_error": 0.03702739528944221
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -3.975222976905414,
                -0.03869544936106035,
                -0.0005079932308338087,
                -2.3038587354778928e-05
              ],
              [
                -4.014449458084663,
                -0.03980574365698965,
                -0.0005825121000852598,
                -3.074919587513908e-05
              ],
              [
                -4.054868463037613,
                -0.04106294041530286,
                -0.0006808174980140955,
                -4.299954424800273e-05
              ],
              [
                -4.096655220495178,
                -0.04255344436532957,
                -0.0008177922188329634,
                -6.436521873828815e-05
              ],
              [
                -4.1400908222980775,
                -0.04438187106547748,
                -0.0010211315331945942,
                -0.00010682502067828337
              ],
              [
                -4.185600649917428,
                -0.04674400789264058,
                -0.0013507123904142257,
                -0.00021143643785798832
              ],
              [
                -4.233906806638341,
                -0.0500777054279718,
                -0.0019350311379895194,
                -0.0006094715026741179
              ],
              [
                -4.286529014706977,
                -0.05575914296533622,
                0.005661936116541852,
                -0.013902750388637627
              ]
            ],
            "knots": [
              0.6586820821659584,
              0.6596793934186032,
              0.6606773374290318,
              0.6616752814394604,
              0.662673225449889,
              0.6636711694603178,
              0.6646691134707464,
              0.665667057481175,
              0.6666649944382855
            ],
            "max_abs_error": 0.00097529619429082
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -3030.604583787862,
              -8.623126007535582,
              0.15145810596643727,
              0.006868955905677154
            ],
            [
              -3039.069382733525,
              -8.30488281034192,
              0.1736759099932259,
              0.009167874934855824
            ],
            [
              -3047.1914217589374,
              -7.930049735676276,
              0.20298567102983345,
              0.012820318749422022
            ],
            [
              -3054.905665504836,
              -7.485656101233116,
              0.24382469804237505,
              0.01919050068630579
            ],
            [
              -3062.1283064073396,
              -6.940510752495494,
              0.30445034563603013,
              0.031849910428502604
            ],
            [
              -3068.7325169037695,
              -6.236239608393156,
              0.4027149524615359,
              0.06303989625510642
            ],
            [
              -3074.503001663448,
              -5.2422972184270415,
              0.5769295713609002,
              0.1817150015821123
            ],
            [
              -3078.9866543089315,
              -3.5482308633729374,
              -1.7127322861416543,
              4.172513827677103
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.6586820821659584,
            0.6596793934186032,
            0.6606773374290318,
            0.6616752814394604,
            0.662673225449889,
            0.6636711694603178,
            0.6646691134707464,
            0.665667057481175,
            0.6666649944382855
          ],
          "max_abs_error": 0.29371754831254293,
          "phase": "SIGMA_D8B",
          "x_hi": 0.6666649944382855,
          "x_lo": 0.6586820821659584
        },
        {
          "enthalpy": {
            "intercept": -13170.536445078658,
            "slope": 13190.059777882489
          },
          "entropy": {
            "intercept": 2.673365917167785,
            "slope": -2.5974245057137795
          },
          "intercept": -13967.600493282287,
          "kind": "two_phase",
          "left": {
            "phase": "SIGMA_D8B",
            "x": 0.6666649944382855
          },
          "mu_a_rel": -13967.600493282287,
          "mu_b_rel": -3.1185990211797616,
          "right": {
            "phase": "BCC_A2",
            "x": 0.9987505259700922
          },
          "slope": 13964.481894261107,
          "x_hi": 0.9987505259700922,
          "x_lo": 0.6666649944382855
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                3.0426956584339364,
                -3.0223812730407533,
                -0.021764431754468294,
                0.0014500463612856507
              ]
            ],
            "knots": [
              0.9987505259700922,
              1.0
            ],
            "max_abs_error": 3.164410525613448e-05
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -0.0006442185610082835,
                0.0007769846779866526,
                -0.0001548251197327433,
                2.205900275437415e-05
              ]
            ],
            "knots": [
              0.9987505259700922,
              1.0
            ],
            "max_abs_error": 2.4920861481647356e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              3.2347694223999603,
              -3.2540392549824593,
              0.024396678065484956,
              -0.005126845482986031
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.9987505259700922,
            1.0
          ],
          "max_abs_error": 0.0007113986491706914,
          "phase": "BCC_A2",
          "x_hi": 1.0,
          "x_lo": 0.9987505259700922
        }
      ],
      "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": -0.9963084596165572,
          "energy_per_atom": -0.9963084596165572,
          "enthalpy": 1.835446142305401,
          "entries_at_x": 1,
          "entropy": 0.00949775147382681,
          "formula": "",
          "nsites": null,
          "phase": "HCP_A3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.00010490170634628942
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -4621.861423170047,
          "energy_per_atom": -4621.861423170047,
          "enthalpy": -4215.817314352197,
          "entries_at_x": 1,
          "entropy": 1.361878614180231,
          "formula": "",
          "nsites": null,
          "phase": "SIGMA_D8B",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.6586820821659584
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -4657.969248911168,
          "energy_per_atom": -4657.969248911168,
          "enthalpy": -4377.185316615975,
          "entries_at_x": 1,
          "entropy": 0.9417539235122412,
          "formula": "",
          "nsites": null,
          "phase": "SIGMA_D8B",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.6666649944382855
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -20.566856489177553,
          "energy_per_atom": -20.566856489177553,
          "enthalpy": 3.0426956584339364,
          "entries_at_x": 1,
          "entropy": 0.07918682591854065,
          "formula": "",
          "nsites": null,
          "phase": "BCC_A2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.9987505259700922
        },
        {
          "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",
          "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": "CoCr-18Cac",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:23:21Z",
    "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/CoCr-18Cac.tdb",
    "source_sha256": "d43dc8f1217be4a80f00d1b0772988997519c925dff1bb48f9ea8570c0adc0d9"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "CO-CR",
  "x_element": "CR"
}