{
  "counts": {
    "above_hull": 0,
    "entries": 6,
    "intervals": 5,
    "vertices": 6
  },
  "elements": [
    "FE",
    "TI"
  ],
  "flags": [
    "has_intermediate_phases",
    "redundant_phase_descriptions",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "FE": {
          "energy": -8133.457553944452,
          "phase": "B2_BCC"
        },
        "TI": {
          "energy": -9159.168165210564,
          "phase": "HCP_A3"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -61832.4146904288
          },
          "entropy": {
            "intercept": 0.0,
            "slope": 4.771270306747158
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "B2_BCC#1",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -63254.96893238547,
          "right": {
            "phase": "C14_LAVES",
            "x": 0.3333292001846324
          },
          "slope": -63254.96893238547,
          "x_hi": 0.3333292001846324,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -20610.54933424515,
                -0.4067640390258801,
                -0.0015260001038929216,
                0.001544224529623217
              ]
            ],
            "knots": [
              0.3333292001846324,
              0.3333333334555462
            ],
            "max_abs_error": 0.00022153265672386624
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -3.701845722739092,
                -0.00051120434961093,
                9.405170770302351e-05,
                -0.00012838157751568946
              ]
            ],
            "knots": [
              0.3333292001846324,
              0.3333333334555462
            ],
            "max_abs_error": 1.4236479246143574e-05
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -19506.84403201049,
              -0.2543484613277786,
              -0.02956751823763107,
              0.03982119248644658
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.3333292001846324,
            0.3333333334555462
          ],
          "max_abs_error": 0.00446439322331571,
          "phase": "C14_LAVES",
          "x_hi": 0.3333333334555462,
          "x_lo": 0.3333292001846324
        },
        {
          "enthalpy": {
            "intercept": -13207.20709428421,
            "slope": -22211.24694918311
          },
          "entropy": {
            "intercept": 5.2384904146662645,
            "slope": -10.945825234111826
          },
          "intercept": -14769.06301141695,
          "kind": "two_phase",
          "left": {
            "phase": "C14_LAVES",
            "x": 0.3333333334555462
          },
          "mu_a_rel": -14769.06301141695,
          "mu_b_rel": -33716.81216704964,
          "right": {
            "phase": "B2_BCC#2",
            "x": 0.49999999866135925
          },
          "slope": -18947.74915563269,
          "x_hi": 0.49999999866135925,
          "x_lo": 0.3333333334555462
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -24312.830539142884,
                0.16970055505641918,
                0.03848537491103354,
                -0.019141108821713826
              ]
            ],
            "knots": [
              0.49999999866135925,
              0.5000023680527721
            ],
            "max_abs_error": 0.002745968900853768
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -5.997568509381099,
                0.00032241751713668425,
                -8.80910230218198e-05,
                3.439587939085907e-05
              ]
            ],
            "knots": [
              0.49999999866135925,
              0.5000023680527721
            ],
            "max_abs_error": 2.620006664955099e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -22524.65548807091,
              0.07357177336056504,
              0.06474971326393626,
              -0.02939624114229429
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.49999999866135925,
            0.5000023680527721
          ],
          "max_abs_error": 0.003494690688967239,
          "phase": "B2_BCC#2",
          "x_hi": 0.5000023680527721,
          "x_lo": 0.49999999866135925
        },
        {
          "enthalpy": {
            "intercept": -48625.51328420652,
            "slope": 48625.51328420652
          },
          "entropy": {
            "intercept": -0.468309148875283,
            "slope": 0.468309148875283
          },
          "intercept": -48485.886911469366,
          "kind": "two_phase",
          "left": {
            "phase": "B2_BCC#2",
            "x": 0.5000023680527721
          },
          "mu_a_rel": -48485.886911469366,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "HCP_A3",
            "x": 1.0
          },
          "slope": 48485.886911469366,
          "x_hi": 1.0,
          "x_lo": 0.5000023680527721
        }
      ],
      "phase_instances": {
        "B2_BCC#1": "B2_BCC",
        "B2_BCC#2": "B2_BCC"
      },
      "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": "B2_BCC#1",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -21084.72820193582,
          "energy_per_atom": -21084.72820193582,
          "enthalpy": -20610.54933424515,
          "entries_at_x": 1,
          "entropy": 1.590403715212716,
          "formula": "",
          "nsites": null,
          "phase": "C14_LAVES",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.3333292001846324
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -21084.979398943506,
          "energy_per_atom": -21084.979398943506,
          "enthalpy": -20610.956080059746,
          "entries_at_x": 1,
          "entropy": 1.5898820019579354,
          "formula": "",
          "nsites": null,
          "phase": "C14_LAVES",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.3333333334555462
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -24242.937563869065,
          "energy_per_atom": -24242.937563869065,
          "enthalpy": -24312.830539142884,
          "entries_at_x": 1,
          "entropy": -0.23442218773712042,
          "formula": "",
          "nsites": null,
          "phase": "B2_BCC#2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.49999999866135925
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -24242.828638595776,
          "energy_per_atom": -24242.828638595776,
          "enthalpy": -24312.641494321735,
          "entries_at_x": 1,
          "entropy": -0.23415346545686333,
          "formula": "",
          "nsites": null,
          "phase": "B2_BCC#2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.5000023680527721
        },
        {
          "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": "FeTi-12Bo",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:37:33Z",
    "phase_families": {
      "BCC_A2": "A2_BCC"
    },
    "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/FeTi-12Bo.tdb",
    "source_sha256": "183add95bfc32e462504a28e1e6328b1d8c009f30f99607bc69641a7f14f6dcd"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "FE-TI",
  "x_element": "TI"
}
