{
  "counts": {
    "above_hull": 0,
    "entries": 11,
    "intervals": 10,
    "vertices": 11
  },
  "elements": [
    "NI",
    "Y"
  ],
  "flags": [
    "has_intermediate_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "NI": {
          "energy": -8883.518918275237,
          "phase": "FCC_A1"
        },
        "Y": {
          "energy": -13353.412772047976,
          "phase": "HCP_A3"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -177411.37725852957
          },
          "entropy": {
            "intercept": 0.0,
            "slope": -3.440228333604372
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "FCC_A1",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -176385.67318086536,
          "right": {
            "phase": "NI17Y2",
            "x": 0.10526315789473684
          },
          "slope": -176385.67318086536,
          "x_hi": 0.10526315789473684,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": 28.35896825853706,
            "slope": -177680.78745698565
          },
          "entropy": {
            "intercept": 3.3174353190401598,
            "slope": -34.95586386448589
          },
          "intercept": -960.7343721132711,
          "kind": "two_phase",
          "left": {
            "phase": "NI17Y2",
            "x": 0.10526315789473684
          },
          "mu_a_rel": -960.7343721132711,
          "mu_b_rel": -168219.43101790256,
          "right": {
            "phase": "NI5Y_D2D",
            "x": 0.16666666666666666
          },
          "slope": -167258.69664578928,
          "x_hi": 0.16666666666666666,
          "x_lo": 0.10526315789473684
        },
        {
          "enthalpy": {
            "intercept": -24311.926746027137,
            "slope": -31639.07317127161
          },
          "entropy": {
            "intercept": -4.980850395245566,
            "slope": 14.833850421228467
          },
          "intercept": -22826.886200684694,
          "kind": "two_phase",
          "left": {
            "phase": "NI5Y_D2D",
            "x": 0.16666666666666666
          },
          "mu_a_rel": -22826.886200684694,
          "mu_b_rel": -58888.67187504543,
          "right": {
            "phase": "NI4Y",
            "x": 0.2
          },
          "slope": -36061.78567436074,
          "x_hi": 0.2,
          "x_lo": 0.16666666666666666
        },
        {
          "enthalpy": {
            "intercept": -24304.875054701028,
            "slope": -31674.331627902153
          },
          "entropy": {
            "intercept": -3.960711696399317,
            "slope": 9.733156926997221
          },
          "intercept": -23123.988862419523,
          "kind": "two_phase",
          "left": {
            "phase": "NI4Y",
            "x": 0.2
          },
          "mu_a_rel": -23123.988862419523,
          "mu_b_rel": -57700.26122810612,
          "right": {
            "phase": "NI7Y2",
            "x": 0.2222222222222222
          },
          "slope": -34576.2723656866,
          "x_hi": 0.2222222222222222,
          "x_lo": 0.2
        },
        {
          "enthalpy": {
            "intercept": -24410.975828272876,
            "slope": -31196.878146828836
          },
          "entropy": {
            "intercept": -2.5889820933725356,
            "slope": 3.5603737133767037
          },
          "intercept": -23639.070817133867,
          "kind": "two_phase",
          "left": {
            "phase": "NI7Y2",
            "x": 0.2222222222222222
          },
          "mu_a_rel": -23639.070817133867,
          "mu_b_rel": -55897.474386605914,
          "right": {
            "phase": "NI3Y",
            "x": 0.25
          },
          "slope": -32258.40356947205,
          "x_hi": 0.25,
          "x_lo": 0.2222222222222222
        },
        {
          "enthalpy": {
            "intercept": -30782.92805056745,
            "slope": -5709.06925765054
          },
          "entropy": {
            "intercept": -4.261853895605135,
            "slope": 10.251860922307104
          },
          "intercept": -29512.256311592762,
          "kind": "two_phase",
          "left": {
            "phase": "NI3Y",
            "x": 0.25
          },
          "mu_a_rel": -29512.256311592762,
          "mu_b_rel": -38277.91790322923,
          "right": {
            "phase": "NI2Y",
            "x": 0.3333333333333333
          },
          "slope": -8765.66159163647,
          "x_hi": 0.3333333333333333,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "intercept": -32745.126746027145,
            "slope": 177.52682872854345
          },
          "entropy": {
            "intercept": -0.1966503952455484,
            "slope": -1.9437495787716583
          },
          "intercept": -32686.49543068472,
          "kind": "two_phase",
          "left": {
            "phase": "NI2Y",
            "x": 0.3333333333333333
          },
          "mu_a_rel": -32686.49543068472,
          "mu_b_rel": -31929.439665045313,
          "right": {
            "phase": "NIY_B27",
            "x": 0.5
          },
          "slope": 757.0557656394084,
          "x_hi": 0.5,
          "x_lo": 0.3333333333333333
        },
        {
          "enthalpy": {
            "intercept": -36778.82674602715,
            "slope": 8244.92682872856
          },
          "entropy": {
            "intercept": 19.07144960475443,
            "slope": -40.47994957877162
          },
          "intercept": -42464.97944568462,
          "kind": "two_phase",
          "left": {
            "phase": "NIY_B27",
            "x": 0.5
          },
          "mu_a_rel": -42464.97944568462,
          "mu_b_rel": -22150.955650045416,
          "right": {
            "phase": "NI2Y3",
            "x": 0.6000000000000001
          },
          "slope": 20314.023795639205,
          "x_hi": 0.6000000000000001,
          "x_lo": 0.5
        },
        {
          "enthalpy": {
            "intercept": -76552.42674602727,
            "slope": 74534.26016206207
          },
          "entropy": {
            "intercept": -15.118650395245531,
            "slope": 16.50355042122831
          },
          "intercept": -72044.80113068478,
          "kind": "two_phase",
          "left": {
            "phase": "NI2Y3",
            "x": 0.6000000000000001
          },
          "mu_a_rel": -72044.80113068478,
          "mu_b_rel": -2431.0745267119783,
          "right": {
            "phase": "NIY3_D011",
            "x": 0.75
          },
          "slope": 69613.7266039728,
          "x_hi": 0.75,
          "x_lo": 0.6000000000000001
        },
        {
          "enthalpy": {
            "intercept": -82606.92649792285,
            "slope": 82606.92649792285
          },
          "entropy": {
            "intercept": -10.96395031729719,
            "slope": 10.96395031729719
          },
          "intercept": -79338.02471082073,
          "kind": "two_phase",
          "left": {
            "phase": "NIY3_D011",
            "x": 0.75
          },
          "mu_a_rel": -79338.02471082073,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "HCP_A3",
            "x": 1.0
          },
          "slope": 79338.02471082073,
          "x_hi": 1.0,
          "x_lo": 0.75
        }
      ],
      "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": -18566.91296640688,
          "energy_per_atom": -18566.91296640688,
          "enthalpy": -18674.88181668732,
          "entries_at_x": 1,
          "entropy": -0.3621292982741444,
          "formula": "",
          "nsites": null,
          "phase": "NI17Y2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.10526315789473684
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -28837.18381307815,
          "energy_per_atom": -28837.18381307815,
          "enthalpy": -29585.105607905738,
          "entries_at_x": 1,
          "entropy": -2.5085419917074887,
          "formula": "",
          "nsites": null,
          "phase": "NI5Y_D2D",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.16666666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -30039.243335556843,
          "energy_per_atom": -30039.243335556843,
          "enthalpy": -30639.74138028146,
          "entries_at_x": 1,
          "entropy": -2.014080310999873,
          "formula": "",
          "nsites": null,
          "phase": "NI4Y",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.2
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -30807.60494368321,
          "energy_per_atom": -30807.60494368321,
          "enthalpy": -31343.61541645706,
          "entries_at_x": 1,
          "entropy": -1.7977879348443793,
          "formula": "",
          "nsites": null,
          "phase": "NI7Y2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.2222222222222222
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -31703.67170950188,
          "energy_per_atom": -31703.67170950188,
          "enthalpy": -32210.195364980085,
          "entries_at_x": 1,
          "entropy": -1.6988886650283597,
          "formula": "",
          "nsites": null,
          "phase": "NI3Y",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -32434.14350880492,
          "energy_per_atom": -32434.14350880492,
          "enthalpy": -32685.951136450964,
          "entries_at_x": 1,
          "entropy": -0.8445669215027678,
          "formula": "",
          "nsites": null,
          "phase": "NI2Y",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.3333333333333333
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -32307.967547865017,
          "energy_per_atom": -32307.967547865017,
          "enthalpy": -32656.363331662873,
          "entries_at_x": 1,
          "entropy": -1.1685251846313776,
          "formula": "",
          "nsites": null,
          "phase": "NIY_B27",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.5
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -30276.565168301095,
          "energy_per_atom": -30276.565168301095,
          "enthalpy": -31831.870648790016,
          "entries_at_x": 1,
          "entropy": -5.216520142508543,
          "formula": "",
          "nsites": null,
          "phase": "NI2Y3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.6000000000000001
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -19834.50617770518,
          "energy_per_atom": -19834.50617770518,
          "enthalpy": -20651.73162448071,
          "entries_at_x": 1,
          "entropy": -2.7409875793242975,
          "formula": "",
          "nsites": null,
          "phase": "NIY3_D011",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.75
        },
        {
          "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": "NiY-15Hua",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:55:44Z",
    "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/NiY-15Hua.tdb",
    "source_sha256": "dc9a8bc028e96db659b6b323bf773af8191aa8a544fc1509e2c405f70319f2b3"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "NI-Y",
  "x_element": "Y"
}
