{
  "counts": {
    "above_hull": 0,
    "entries": 9,
    "intervals": 8,
    "vertices": 9
  },
  "elements": [
    "AL",
    "ND"
  ],
  "flags": [
    "has_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "AL": {
          "energy": -8437.646145374003,
          "phase": "FCC_A1"
        },
        "ND": {
          "energy": -21194.35091173941,
          "phase": "DHCP"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -182666.66589039087
          },
          "entropy": {
            "intercept": 0.0,
            "slope": -43.80000007925609
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "FCC_A1",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -169607.69586676068,
          "right": {
            "phase": "AL11ND3_ALPHA",
            "x": 0.21428571428571425
          },
          "slope": -169607.69586676068,
          "x_hi": 0.21428571428571425,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -3999.999819938952,
            "slope": -164000.0000640091
          },
          "entropy": {
            "intercept": 4.440000003972024,
            "slope": -64.5200000977922
          },
          "intercept": -5323.785821123194,
          "kind": "two_phase",
          "left": {
            "phase": "AL11ND3_ALPHA",
            "x": 0.21428571428571425
          },
          "mu_a_rel": -5323.785821123194,
          "mu_b_rel": -150087.14785597564,
          "right": {
            "phase": "AL3ND_D019",
            "x": 0.25
          },
          "slope": -144763.36203485244,
          "x_hi": 0.25,
          "x_lo": 0.21428571428571425
        },
        {
          "enthalpy": {
            "intercept": -20999.999820962497,
            "slope": -96000.00005991492
          },
          "entropy": {
            "intercept": -5.389999999441616,
            "slope": -25.200000084137645
          },
          "intercept": -19392.97132112899,
          "kind": "two_phase",
          "left": {
            "phase": "AL3ND_D019",
            "x": 0.25
          },
          "mu_a_rel": -19392.97132112899,
          "mu_b_rel": -107879.59135595826,
          "right": {
            "phase": "AL2ND_C15",
            "x": 0.3333333333332941
          },
          "slope": -88486.62003482926,
          "x_hi": 0.3333333333332941,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "intercept": -58999.99981890185,
            "slope": 17999.99993391655
          },
          "entropy": {
            "intercept": -8.739999992613116,
            "slope": -15.150000104621963
          },
          "intercept": -56394.16882110425,
          "kind": "two_phase",
          "left": {
            "phase": "AL2ND_C15",
            "x": 0.3333333333332941
          },
          "mu_a_rel": -56394.16882110425,
          "mu_b_rel": -33877.196355994674,
          "right": {
            "phase": "ALND",
            "x": 0.5
          },
          "slope": 22516.972465109575,
          "x_hi": 0.5,
          "x_lo": 0.3333333333332941
        },
        {
          "enthalpy": {
            "intercept": -90499.99981993891,
            "slope": 80999.99993599065
          },
          "entropy": {
            "intercept": -28.399999996027947,
            "slope": 24.1699999022077
          },
          "intercept": -82032.53982112318,
          "kind": "two_phase",
          "left": {
            "phase": "ALND",
            "x": 0.5
          },
          "mu_a_rel": -82032.53982112318,
          "mu_b_rel": -8238.825355975729,
          "right": {
            "phase": "ALND2_C37",
            "x": 0.6666666666666666
          },
          "slope": 73793.71446514745,
          "x_hi": 0.6666666666666666,
          "x_lo": 0.5
        },
        {
          "enthalpy": {
            "intercept": -108499.99981993886,
            "slope": 107999.99993599059
          },
          "entropy": {
            "intercept": -43.079999996027965,
            "slope": 46.189999902207724
          },
          "intercept": -95655.69782112312,
          "kind": "two_phase",
          "left": {
            "phase": "ALND2_C37",
            "x": 0.6666666666666666
          },
          "mu_a_rel": -95655.69782112312,
          "mu_b_rel": -1427.2463559757743,
          "right": {
            "phase": "ALND3_D019",
            "x": 0.75
          },
          "slope": 94228.45146514734,
          "x_hi": 0.75,
          "x_lo": 0.6666666666666666
        },
        {
          "enthalpy": {
            "intercept": -110250.54836788084,
            "slope": 110334.0646665799
          },
          "entropy": {
            "intercept": -35.331219026041396,
            "slope": 35.858291942225634
          },
          "intercept": -99716.54541526662,
          "kind": "two_phase",
          "left": {
            "phase": "ALND3_D019",
            "x": 0.75
          },
          "mu_a_rel": -99716.54541526662,
          "mu_b_rel": -73.63049126126862,
          "right": {
            "phase": "DHCP",
            "x": 0.9810342903225854
          },
          "slope": 99642.91492400535,
          "x_hi": 0.9810342903225854,
          "x_lo": 0.75
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -2009.0475392963854,
                1977.5135982321228,
                31.530006277510438,
                0.003934786752097352
              ]
            ],
            "knots": [
              0.9810342903225854,
              1.0
            ],
            "max_abs_error": 0.0014747606901437393
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -0.9344487735896871,
                0.9164311887411879,
                0.018023951871346977,
                -6.36702284773083e-06
              ]
            ],
            "knots": [
              0.9810342903225854,
              1.0
            ],
            "max_abs_error": 1.3169338444751766e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -1730.4416374506193,
              1704.279639309052,
              26.15616502656144,
              0.005833115005998479
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.9810342903225854,
            1.0
          ],
          "max_abs_error": 0.0017304261494928141,
          "phase": "DHCP",
          "x_hi": 1.0,
          "x_lo": 0.9810342903225854
        }
      ],
      "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": -36344.506257163,
          "energy_per_atom": -36344.506257163,
          "enthalpy": -39142.856976512325,
          "entries_at_x": 1,
          "entropy": -9.385714302697732,
          "formula": "",
          "nsites": null,
          "phase": "AL11ND3_ALPHA",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.21428571428571425
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -41514.626329836305,
          "energy_per_atom": -41514.626329836305,
          "enthalpy": -44999.99983594123,
          "entries_at_x": 1,
          "entropy": -11.690000020476027,
          "formula": "",
          "nsites": null,
          "phase": "AL3ND_D019",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -48888.511332735274,
          "energy_per_atom": -48888.511332735274,
          "enthalpy": -52999.99984093037,
          "entries_at_x": 1,
          "entropy": -13.79000002748651,
          "formula": "",
          "nsites": null,
          "phase": "AL2ND_C15",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.3333333333332941
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -45135.68258854946,
          "energy_per_atom": -45135.68258854946,
          "enthalpy": -49999.999851943576,
          "entries_at_x": 1,
          "entropy": -16.315000044924098,
          "formula": "",
          "nsites": null,
          "phase": "ALND",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.5
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -32836.730177691556,
          "energy_per_atom": -32836.730177691556,
          "enthalpy": -36499.9998626118,
          "entries_at_x": 1,
          "entropy": -12.286666727889482,
          "formula": "",
          "nsites": null,
          "phase": "ALND2_C37",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.6666666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -24984.359222262607,
          "energy_per_atom": -24984.359222262607,
          "enthalpy": -27499.999867945917,
          "entries_at_x": 1,
          "entropy": -8.43750006937217,
          "formula": "",
          "nsites": null,
          "phase": "ALND3_D019",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.75
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -1963.4290871212797,
          "energy_per_atom": -1963.4290871212797,
          "enthalpy": -2009.0475392963854,
          "entries_at_x": 1,
          "entropy": -0.15300503831998924,
          "formula": "",
          "nsites": null,
          "phase": "DHCP",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.9810342903225854
        },
        {
          "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": 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": "AlNd-01Cac",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:12:24Z",
    "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/AlNd-01Cac.tdb",
    "source_sha256": "45d437d59612d7a34dcce2641e12a6cd9b2299e0ef9a6120411108039f1e0c06"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "AL-ND",
  "x_element": "ND"
}