{
  "counts": {
    "above_hull": 0,
    "entries": 10,
    "intervals": 9,
    "vertices": 10
  },
  "elements": [
    "GD",
    "NI"
  ],
  "flags": [
    "has_intermediate_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "GD": {
          "energy": -20161.155207377265,
          "phase": "HCP_A3"
        },
        "NI": {
          "energy": -8883.518903941735,
          "phase": "FCC_A1"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -54940.926776149216
          },
          "entropy": {
            "intercept": 0.0,
            "slope": 4.586749146534601
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "HCP_A3",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -56308.46603418852,
          "right": {
            "phase": "GD3NI_D011",
            "x": 0.25
          },
          "slope": -56308.46603418852,
          "x_hi": 0.25,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -389.00000213685416,
            "slope": -53384.9267676018
          },
          "entropy": {
            "intercept": 1.466133191077984,
            "slope": -1.2777836177773354
          },
          "intercept": -826.1276130567712,
          "kind": "two_phase",
          "left": {
            "phase": "GD3NI_D011",
            "x": 0.25
          },
          "mu_a_rel": -826.1276130567712,
          "mu_b_rel": -53830.083195018204,
          "right": {
            "phase": "GD3NI2",
            "x": 0.4
          },
          "slope": -53003.95558196143,
          "x_hi": 0.4,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "intercept": -9521.000002136898,
            "slope": -30554.92676760169
          },
          "entropy": {
            "intercept": -5.760800142255286,
            "slope": 16.78954971555584
          },
          "intercept": -7803.417439723435,
          "kind": "two_phase",
          "left": {
            "phase": "GD3NI2",
            "x": 0.4
          },
          "mu_a_rel": -7803.417439723435,
          "mu_b_rel": -43364.14845501821,
          "right": {
            "phase": "GDNI_B33",
            "x": 0.5
          },
          "slope": -35560.731015294776,
          "x_hi": 0.5,
          "x_lo": 0.4
        },
        {
          "enthalpy": {
            "intercept": -19932.00000213683,
            "slope": -9732.92676760183
          },
          "entropy": {
            "intercept": 8.135399857744645,
            "slope": -11.002850284444024
          },
          "intercept": -22357.569469723414,
          "kind": "two_phase",
          "left": {
            "phase": "GDNI_B33",
            "x": 0.5
          },
          "mu_a_rel": -22357.569469723414,
          "mu_b_rel": -28809.99642501823,
          "right": {
            "phase": "GDNI2_C15",
            "x": 0.6666666666666666
          },
          "slope": -6452.426955294819,
          "x_hi": 0.6666666666666666,
          "x_lo": 0.5
        },
        {
          "enthalpy": {
            "intercept": -18457.333335470183,
            "slope": -11944.926767601799
          },
          "entropy": {
            "intercept": 15.061333191078113,
            "slope": -21.391750284444225
          },
          "intercept": -22947.86982639011,
          "kind": "two_phase",
          "left": {
            "phase": "GDNI2_C15",
            "x": 0.6666666666666666
          },
          "mu_a_rel": -22947.86982639011,
          "mu_b_rel": -28514.846246684887,
          "right": {
            "phase": "GD2NI7",
            "x": 0.7777777777777777
          },
          "slope": -5566.976420294776,
          "x_hi": 0.7777777777777777,
          "x_lo": 0.6666666666666666
        },
        {
          "enthalpy": {
            "intercept": -47505.00000213663,
            "slope": 25402.073232397925
          },
          "entropy": {
            "intercept": 0.8111998577440129,
            "slope": -3.0701502844432382
          },
          "intercept": -47746.85923972295,
          "kind": "two_phase",
          "left": {
            "phase": "GD2NI7",
            "x": 0.7777777777777777
          },
          "mu_a_rel": -47746.85923972295,
          "mu_b_rel": -21429.42070001836,
          "right": {
            "phase": "GDNI4",
            "x": 0.8
          },
          "slope": 26317.43853970459,
          "x_hi": 0.8,
          "x_lo": 0.7777777777777777
        },
        {
          "enthalpy": {
            "intercept": -61505.000002136985,
            "slope": 42902.07323239837
          },
          "entropy": {
            "intercept": -5.324800142254871,
            "slope": 4.599849715555367
          },
          "intercept": -59917.41083972389,
          "kind": "two_phase",
          "left": {
            "phase": "GDNI4",
            "x": 0.8
          },
          "mu_a_rel": -59917.41083972389,
          "mu_b_rel": -18386.782800018118,
          "right": {
            "phase": "GDNI5_D2D",
            "x": 0.8333333333333333
          },
          "slope": 41530.62803970577,
          "x_hi": 0.8333333333333333,
          "x_lo": 0.8
        },
        {
          "enthalpy": {
            "intercept": -141479.28571642266,
            "slope": 138871.21608954118
          },
          "entropy": {
            "intercept": -11.498585856541052,
            "slope": 12.008392572698783
          },
          "intercept": -138050.9823432949,
          "kind": "two_phase",
          "left": {
            "phase": "GDNI5_D2D",
            "x": 0.8333333333333333
          },
          "mu_a_rel": -138050.9823432949,
          "mu_b_rel": -2760.0684993038885,
          "right": {
            "phase": "GD2NI17",
            "x": 0.894736842105263
          },
          "slope": 135290.913843991,
          "x_hi": 0.894736842105263,
          "x_lo": 0.8333333333333333
        },
        {
          "enthalpy": {
            "intercept": -163647.87754491516,
            "slope": 163647.87754491516
          },
          "entropy": {
            "intercept": -7.165228769200333,
            "slope": 7.165228769200333
          },
          "intercept": -161511.56458737812,
          "kind": "two_phase",
          "left": {
            "phase": "GD2NI17",
            "x": 0.894736842105263
          },
          "mu_a_rel": -161511.56458737812,
          "mu_b_rel": -2.9103830456733704e-11,
          "right": {
            "phase": "FCC_A1",
            "x": 1.0
          },
          "slope": 161511.5645873781,
          "x_hi": 1.0,
          "x_lo": 0.894736842105263
        }
      ],
      "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": -14077.11650854713,
          "energy_per_atom": -14077.11650854713,
          "enthalpy": -13735.231694037304,
          "entries_at_x": 1,
          "entropy": 1.1466872866336502,
          "formula": "",
          "nsites": null,
          "phase": "GD3NI_D011",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -22027.709845841346,
          "energy_per_atom": -22027.709845841346,
          "enthalpy": -21742.970709177574,
          "entries_at_x": 1,
          "entropy": 0.9550197439670498,
          "formula": "",
          "nsites": null,
          "phase": "GD3NI2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.4
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -25583.782947370823,
          "energy_per_atom": -25583.782947370823,
          "enthalpy": -24798.463385937743,
          "entries_at_x": 1,
          "entropy": 2.6339747155226334,
          "formula": "",
          "nsites": null,
          "phase": "GDNI_B33",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.5
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -26659.18743991996,
          "energy_per_atom": -26659.18743991996,
          "enthalpy": -26420.617847204714,
          "entries_at_x": 1,
          "entropy": 0.800166334781963,
          "formula": "",
          "nsites": null,
          "phase": "GDNI2_C15",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.6666666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -27277.740375508267,
          "energy_per_atom": -27277.740375508267,
          "enthalpy": -27747.831932493802,
          "entries_at_x": 1,
          "entropy": -1.5766948079340608,
          "formula": "",
          "nsites": null,
          "phase": "GD2NI7",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.7777777777777777
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -26692.908407959272,
          "energy_per_atom": -26692.908407959272,
          "enthalpy": -27183.34141621829,
          "entries_at_x": 1,
          "entropy": -1.6449203698105777,
          "formula": "",
          "nsites": null,
          "phase": "GDNI4",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.8
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -25308.554139969085,
          "energy_per_atom": -25308.554139969085,
          "enthalpy": -25753.27230847168,
          "entries_at_x": 1,
          "entropy": -1.4915920459587326,
          "formula": "",
          "nsites": null,
          "phase": "GDNI5_D2D",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.8333333333333333
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -17001.217324987185,
          "energy_per_atom": -17001.217324987185,
          "enthalpy": -17226.092373148982,
          "entries_at_x": 1,
          "entropy": -0.7542346072842463,
          "formula": "",
          "nsites": null,
          "phase": "GD2NI17",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.894736842105263
        },
        {
          "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": 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": "GdNi-96Su",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:40:25Z",
    "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/GdNi-96Su.tdb",
    "source_sha256": "3dc05d2093b96cfdafea0cb42e4ba45fbdd46b902b06c8ee9ed5e3aca9bebec8"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "GD-NI",
  "x_element": "NI"
}