{
  "counts": {
    "above_hull": 0,
    "entries": 9,
    "intervals": 8,
    "vertices": 9
  },
  "elements": [
    "ND",
    "NI"
  ],
  "flags": [
    "has_intermediate_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "ND": {
          "energy": -21194.35085750793,
          "phase": "DHCP"
        },
        "NI": {
          "energy": -8883.518911123478,
          "phase": "FCC_A1"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -110532.9264310172
          },
          "entropy": {
            "intercept": 0.0,
            "slope": -28.640850218208953
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "DHCP",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -101993.6569384582,
          "right": {
            "phase": "ND3NI_D011",
            "x": 0.25
          },
          "slope": -101993.6569384582,
          "x_hi": 0.25,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": 387.00011066752995,
            "slope": -112080.92687368732
          },
          "entropy": {
            "intercept": 5.173000070014378,
            "slope": -49.33285049826647
          },
          "intercept": -1155.3298602072355,
          "kind": "two_phase",
          "left": {
            "phase": "ND3NI_D011",
            "x": 0.25
          },
          "mu_a_rel": -1155.3298602072355,
          "mu_b_rel": -98527.66735783649,
          "right": {
            "phase": "ND7NI3_D102",
            "x": 0.30000000000000004
          },
          "slope": -97372.33749762925,
          "x_hi": 0.30000000000000004,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "intercept": -14153.999889332426,
            "slope": -63610.92687368747
          },
          "entropy": {
            "intercept": -8.389999929985517,
            "slope": -4.122850498266822
          },
          "intercept": -11652.521410207242,
          "kind": "two_phase",
          "left": {
            "phase": "ND7NI3_D102",
            "x": 0.30000000000000004
          },
          "mu_a_rel": -11652.521410207242,
          "mu_b_rel": -74034.22040783649,
          "right": {
            "phase": "NDNI_B33",
            "x": 0.5
          },
          "slope": -62381.69899762924,
          "x_hi": 0.5,
          "x_lo": 0.30000000000000004
        },
        {
          "enthalpy": {
            "intercept": -77740.83688933245,
            "slope": 63562.74712631256
          },
          "entropy": {
            "intercept": -35.34199992998555,
            "slope": 49.78114950173324
          },
          "intercept": -67203.61961020727,
          "kind": "two_phase",
          "left": {
            "phase": "NDNI_B33",
            "x": 0.5
          },
          "mu_a_rel": -67203.61961020727,
          "mu_b_rel": -18483.122207836444,
          "right": {
            "phase": "NDNI2_C15",
            "x": 0.6666666666666666
          },
          "slope": 48720.49740237083,
          "x_hi": 0.6666666666666666,
          "x_lo": 0.5
        },
        {
          "enthalpy": {
            "intercept": -71228.58488933233,
            "slope": 53794.369126312384
          },
          "entropy": {
            "intercept": -10.809999929985526,
            "slope": 12.983149501733203
          },
          "intercept": -68005.58341020714,
          "kind": "two_phase",
          "left": {
            "phase": "NDNI2_C15",
            "x": 0.6666666666666666
          },
          "mu_a_rel": -68005.58341020714,
          "mu_b_rel": -18082.14030783652,
          "right": {
            "phase": "NDNI3",
            "x": 0.75
          },
          "slope": 49923.44310237062,
          "x_hi": 0.75,
          "x_lo": 0.6666666666666666
        },
        {
          "enthalpy": {
            "intercept": -69204.13388933256,
            "slope": 51095.10112631269
          },
          "entropy": {
            "intercept": -3.1419999299851185,
            "slope": 2.7591495017326606
          },
          "intercept": -68267.34661020759,
          "kind": "two_phase",
          "left": {
            "phase": "NDNI3",
            "x": 0.75
          },
          "mu_a_rel": -68267.34661020759,
          "mu_b_rel": -17994.885907836368,
          "right": {
            "phase": "ND2NI7",
            "x": 0.7777777777777777
          },
          "slope": 50272.46070237122,
          "x_hi": 0.7777777777777777,
          "x_lo": 0.75
        },
        {
          "enthalpy": {
            "intercept": -67924.86988933245,
            "slope": 49450.33312631255
          },
          "entropy": {
            "intercept": 4.642000070014351,
            "slope": -7.248850498266659
          },
          "intercept": -69308.88221020714,
          "kind": "two_phase",
          "left": {
            "phase": "ND2NI7",
            "x": 0.7777777777777777
          },
          "mu_a_rel": -69308.88221020714,
          "mu_b_rel": -17697.304307836494,
          "right": {
            "phase": "NDNI5_D2D",
            "x": 0.8333333333333333
          },
          "slope": 51611.57790237065,
          "x_hi": 0.8333333333333333,
          "x_lo": 0.7777777777777777
        },
        {
          "enthalpy": {
            "intercept": -160297.55370443186,
            "slope": 160297.5537044319
          },
          "entropy": {
            "intercept": -8.392252071247182,
            "slope": 8.392252071247182
          },
          "intercept": -157795.40374938957,
          "kind": "two_phase",
          "left": {
            "phase": "NDNI5_D2D",
            "x": 0.8333333333333333
          },
          "mu_a_rel": -157795.40374938957,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "FCC_A1",
            "x": 1.0
          },
          "slope": 157795.40374938957,
          "x_hi": 1.0,
          "x_lo": 0.8333333333333333
        }
      ],
      "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": "DHCP",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -25498.41423461455,
          "energy_per_atom": -25498.41423461455,
          "enthalpy": -27633.2316077543,
          "entries_at_x": 1,
          "entropy": -7.160212554552238,
          "formula": "",
          "nsites": null,
          "phase": "ND3NI_D011",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -30367.031109496016,
          "energy_per_atom": -30367.031109496016,
          "enthalpy": -33237.27795143867,
          "entries_at_x": 1,
          "entropy": -9.626855079465564,
          "formula": "",
          "nsites": null,
          "phase": "ND7NI3_D102",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.30000000000000004
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -42843.37090902186,
          "energy_per_atom": -42843.37090902186,
          "enthalpy": -45959.46332617616,
          "entries_at_x": 1,
          "entropy": -10.451425179118928,
          "formula": "",
          "nsites": null,
          "phase": "NDNI_B33",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.5
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -34723.288008626725,
          "energy_per_atom": -34723.288008626725,
          "enthalpy": -35365.672138457405,
          "entries_at_x": 1,
          "entropy": -2.1545669288300573,
          "formula": "",
          "nsites": null,
          "phase": "NDNI2_C15",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.6666666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -30563.00108342917,
          "energy_per_atom": -30563.00108342917,
          "enthalpy": -30882.808044598038,
          "entries_at_x": 1,
          "entropy": -1.0726378036856232,
          "formula": "",
          "nsites": null,
          "phase": "NDNI3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.75
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -29166.543841696643,
          "energy_per_atom": -29166.543841696643,
          "enthalpy": -29463.499679978246,
          "entries_at_x": 1,
          "entropy": -0.9959947619708274,
          "formula": "",
          "nsites": null,
          "phase": "ND2NI7",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.7777777777777777
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -26299.233958231605,
          "energy_per_atom": -26299.233958231605,
          "enthalpy": -26716.25895073866,
          "entries_at_x": 1,
          "entropy": -1.3987086785411975,
          "formula": "",
          "nsites": null,
          "phase": "NDNI5_D2D",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.8333333333333333
        },
        {
          "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": "NdNi-15Luo",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:51:53Z",
    "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/NdNi-15Luo.tdb",
    "source_sha256": "3f57a2103568896df4c0afae54bff9fadeefab629dcc32edc24698747dfab9ee"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "ND-NI",
  "x_element": "NI"
}
