{
  "counts": {
    "above_hull": 0,
    "entries": 6,
    "intervals": 5,
    "vertices": 6
  },
  "elements": [
    "FE",
    "Y"
  ],
  "flags": [
    "has_intermediate_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "FE": {
          "energy": -8133.45748177848,
          "phase": "BCC_A2"
        },
        "Y": {
          "energy": -13353.412707281024,
          "phase": "HCP_A3"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -41381.67078606978
          },
          "entropy": {
            "intercept": 0.0,
            "slope": 31.279570395368086
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "BCC_A2",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -50707.67469944884,
          "right": {
            "phase": "FE17Y2",
            "x": 0.10526315789473684
          },
          "slope": -50707.67469944884,
          "x_hi": 0.10526315789473684,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -2348.313202108657,
            "slope": -19072.695366037537
          },
          "entropy": {
            "intercept": 3.759686584204798,
            "slope": -4.437452154577497
          },
          "intercept": -3469.2637571893333,
          "kind": "two_phase",
          "left": {
            "phase": "FE17Y2",
            "x": 0.10526315789473684
          },
          "mu_a_rel": -3469.2637571893333,
          "mu_b_rel": -21218.932763339504,
          "right": {
            "phase": "FE23Y6_D8A",
            "x": 0.20689655176451124
          },
          "slope": -17749.669006150172,
          "x_hi": 0.20689655176451124,
          "x_lo": 0.10526315789473684
        },
        {
          "enthalpy": {
            "intercept": -3459.146510286139,
            "slope": -13703.667710894073
          },
          "entropy": {
            "intercept": 7.350720268469824,
            "slope": -21.794114958471518
          },
          "intercept": -5650.7637583304195,
          "kind": "two_phase",
          "left": {
            "phase": "FE23Y6_D8A",
            "x": 0.20689655176451124
          },
          "mu_a_rel": -5650.7637583304195,
          "mu_b_rel": -12856.51609435619,
          "right": {
            "phase": "FE3Y",
            "x": 0.25000000000000006
          },
          "slope": -7205.752336025771,
          "x_hi": 0.25000000000000006,
          "x_lo": 0.20689655176451124
        },
        {
          "enthalpy": {
            "intercept": -8658.299042771943,
            "slope": 7092.94241904914
          },
          "entropy": {
            "intercept": 3.0329567371193225,
            "slope": -4.523060833069514
          },
          "intercept": -9562.575093944059,
          "kind": "two_phase",
          "left": {
            "phase": "FE3Y",
            "x": 0.25000000000000006
          },
          "mu_a_rel": -9562.575093944059,
          "mu_b_rel": -1121.082087515275,
          "right": {
            "phase": "FE2Y_C15",
            "x": 0.33333333366495366
          },
          "slope": 8441.493006428784,
          "x_hi": 0.33333333366495366,
          "x_lo": 0.25000000000000006
        },
        {
          "enthalpy": {
            "intercept": -9440.97735580133,
            "slope": 9440.97735580133
          },
          "entropy": {
            "intercept": 2.287904688032392,
            "slope": -2.287904688032392
          },
          "intercept": -10123.116138538187,
          "kind": "two_phase",
          "left": {
            "phase": "FE2Y_C15",
            "x": 0.33333333366495366
          },
          "mu_a_rel": -10123.116138538187,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "HCP_A3",
            "x": 1.0
          },
          "slope": 10123.116138538187,
          "x_hi": 1.0,
          "x_lo": 0.33333333366495366
        }
      ],
      "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",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -5337.649968363035,
          "energy_per_atom": -5337.649968363035,
          "enthalpy": -4355.965345902082,
          "entries_at_x": 1,
          "entropy": 3.292586357407167,
          "formula": "",
          "nsites": null,
          "phase": "FE17Y2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.10526315789473684
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -7141.609069523223,
          "energy_per_atom": -7141.609069523223,
          "enthalpy": -6294.388106196796,
          "entries_at_x": 1,
          "entropy": 2.841593034802713,
          "formula": "",
          "nsites": null,
          "phase": "FE23Y6_D8A",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.20689655176451124
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -7452.201842336863,
          "energy_per_atom": -7452.201842336863,
          "enthalpy": -6885.063438009658,
          "entries_at_x": 1,
          "entropy": 1.9021915288519438,
          "formula": "",
          "nsites": null,
          "phase": "FE3Y",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25000000000000006
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -6748.744089001761,
          "energy_per_atom": -6748.744089001761,
          "enthalpy": -6293.984900736733,
          "entries_at_x": 1,
          "entropy": 1.525269791262879,
          "formula": "",
          "nsites": null,
          "phase": "FE2Y_C15",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.33333333366495366
        },
        {
          "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": "FeY-17Sae",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:38:02Z",
    "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/FeY-17Sae.tdb",
    "source_sha256": "d5fb4919023990bf125fd52bbdf9b0b9a20764cfa0aec1b2b8388eda0c460968"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "FE-Y",
  "x_element": "Y"
}