{
  "counts": {
    "above_hull": 0,
    "entries": 7,
    "intervals": 6,
    "vertices": 7
  },
  "elements": [
    "AL",
    "CO"
  ],
  "flags": [
    "has_intermediate_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "AL": {
          "energy": -8437.646107009306,
          "phase": "FCC_A1"
        },
        "CO": {
          "energy": -8956.44941809831,
          "phase": "HCP_A3"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -187378.61982864418
          },
          "entropy": {
            "intercept": 0.0,
            "slope": -44.829269444253086
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "FCC_A1",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -174012.7731438402,
          "right": {
            "phase": "AL9CO2",
            "x": 0.18181818181818182
          },
          "slope": -174012.7731438402,
          "x_hi": 0.18181818181818182,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -14367.999910676954,
            "slope": -108354.62031992094
          },
          "entropy": {
            "intercept": -7.428000171689079,
            "slope": -3.9752684999631573
          },
          "intercept": -12153.34165948789,
          "kind": "two_phase",
          "left": {
            "phase": "AL9CO2",
            "x": 0.18181818181818182
          },
          "mu_a_rel": -12153.34165948789,
          "mu_b_rel": -119322.73567614467,
          "right": {
            "phase": "AL13CO4",
            "x": 0.23529411764705882
          },
          "slope": -107169.39401665678,
          "x_hi": 0.23529411764705882,
          "x_lo": 0.18181818181818182
        },
        {
          "enthalpy": {
            "intercept": -13799.999910676932,
            "slope": -110768.62031992103
          },
          "entropy": {
            "intercept": -3.4600001716891002,
            "slope": -20.839268499963065
          },
          "intercept": -12768.400859487709,
          "kind": "two_phase",
          "left": {
            "phase": "AL13CO4",
            "x": 0.23529411764705882
          },
          "mu_a_rel": -12768.400859487709,
          "mu_b_rel": -117323.79327614527,
          "right": {
            "phase": "AL3CO",
            "x": 0.25
          },
          "slope": -104555.39241665756,
          "x_hi": 0.25,
          "x_lo": 0.23529411764705882
        },
        {
          "enthalpy": {
            "intercept": -13879.999910676921,
            "slope": -110448.62031992107
          },
          "entropy": {
            "intercept": -1.820000171689082,
            "slope": -27.39926849996314
          },
          "intercept": -13337.36685948799,
          "kind": "two_phase",
          "left": {
            "phase": "AL3CO",
            "x": 0.25
          },
          "mu_a_rel": -13337.36685948799,
          "mu_b_rel": -115616.89527614442,
          "right": {
            "phase": "AL5CO2_D811",
            "x": 0.2857142857142857
          },
          "slope": -102279.52841665644,
          "x_hi": 0.2857142857142857,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "intercept": -28393.999911831008,
            "slope": -59649.620315881766
          },
          "entropy": {
            "intercept": -8.091200175909771,
            "slope": -5.450068485190728
          },
          "intercept": -25981.608579383483,
          "kind": "two_phase",
          "left": {
            "phase": "AL5CO2_D811",
            "x": 0.2857142857142857
          },
          "mu_a_rel": -25981.608579383483,
          "mu_b_rel": -84006.2909764057,
          "right": {
            "phase": "B2_BCC",
            "x": 0.4999999999930188
          },
          "slope": -58024.68239702221,
          "x_hi": 0.4999999999930188,
          "x_lo": 0.2857142857142857
        },
        {
          "enthalpy": {
            "intercept": -116437.62013708519,
            "slope": 116437.62013708519
          },
          "entropy": {
            "intercept": -21.632468836632132,
            "slope": 21.632468836632132
          },
          "intercept": -109987.89955344332,
          "kind": "two_phase",
          "left": {
            "phase": "B2_BCC",
            "x": 0.4999999999930188
          },
          "mu_a_rel": -109987.89955344332,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "HCP_A3",
            "x": 1.0
          },
          "slope": 109987.89955344332,
          "x_hi": 1.0,
          "x_lo": 0.4999999999930188
        }
      ],
      "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": "FCC_A1",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -31638.68602615276,
          "energy_per_atom": -31638.68602615276,
          "enthalpy": -34068.8399688444,
          "entries_at_x": 1,
          "entropy": -8.15077626259147,
          "formula": "",
          "nsites": null,
          "phase": "AL9CO2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.18181818181818182
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -37369.669663407134,
          "energy_per_atom": -37369.669663407134,
          "enthalpy": -39863.20469183482,
          "entries_at_x": 1,
          "entropy": -8.363357465798057,
          "formula": "",
          "nsites": null,
          "phase": "AL13CO4",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.23529411764705882
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -38907.2489636521,
          "energy_per_atom": -38907.2489636521,
          "enthalpy": -41492.15499065719,
          "entries_at_x": 1,
          "entropy": -8.669817296679867,
          "formula": "",
          "nsites": null,
          "phase": "AL3CO",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -42560.08926424697,
          "energy_per_atom": -42560.08926424697,
          "enthalpy": -45436.74857351151,
          "entries_at_x": 1,
          "entropy": -9.648362600249978,
          "formula": "",
          "nsites": null,
          "phase": "AL5CO2_D811",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.2857142857142857
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -54993.949777489506,
          "energy_per_atom": -54993.949777489506,
          "enthalpy": -58218.810069355466,
          "entries_at_x": 1,
          "entropy": -10.816234418467086,
          "formula": "",
          "nsites": null,
          "phase": "B2_BCC",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.4999999999930188
        },
        {
          "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": 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": "AlCo-95Dup",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:08:54Z",
    "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/AlCo-95Dup.tdb",
    "source_sha256": "e60abb4f00caa30b1e313977e7acd0d3fdff8c1c9de9d2eb3990ae36ca1a1d60"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "AL-CO",
  "x_element": "CO"
}
