{
  "counts": {
    "above_hull": 0,
    "entries": 8,
    "intervals": 7,
    "vertices": 8
  },
  "elements": [
    "NI",
    "SB"
  ],
  "flags": [
    "has_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "NI": {
          "energy": -8883.518909272776,
          "phase": "FCC_A1"
        },
        "SB": {
          "energy": -13572.360762013017,
          "phase": "RHOMBOHEDRAL_A7"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                0.0,
                -4757.703919052759,
                616.9022081835451,
                -16.139089184200657
              ]
            ],
            "knots": [
              0.0,
              0.04388226599624593
            ],
            "max_abs_error": 0.001792254849760866
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.0,
                0.2277970122745917,
                0.019365481920889327,
                0.00011054170066798763
              ]
            ],
            "knots": [
              0.0,
              0.04388226599624593
            ],
            "max_abs_error": 2.117494285525101e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              0.0,
              -4825.6215982625445,
              611.1283897490089,
              -16.17204719231404
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.0,
            0.04388226599624593
          ],
          "max_abs_error": 0.0023855927543081634,
          "phase": "FCC_A1",
          "x_hi": 0.04388226599624593,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -212.73921169235518,
            "slope": -89881.44752366436
          },
          "entropy": {
            "intercept": 1.6007784400606258,
            "slope": 3.2783344678639588
          },
          "intercept": -690.0113035964287,
          "kind": "two_phase",
          "left": {
            "phase": "FCC_A1",
            "x": 0.04388226599624593
          },
          "mu_a_rel": -690.0113035964287,
          "mu_b_rel": -91548.89424885444,
          "right": {
            "phase": "NI3SB_D0A",
            "x": 0.25
          },
          "slope": -90858.88294525801,
          "x_hi": 0.25,
          "x_lo": 0.04388226599624593
        },
        {
          "enthalpy": {
            "intercept": -4135.499481800976,
            "slope": -74190.40644322989
          },
          "entropy": {
            "intercept": 8.151391827404794,
            "slope": -22.924119081512714
          },
          "intercept": -6565.836955141713,
          "kind": "two_phase",
          "left": {
            "phase": "NI3SB_D0A",
            "x": 0.25
          },
          "mu_a_rel": -6565.836955141713,
          "mu_b_rel": -73921.4172942186,
          "right": {
            "phase": "NI5SB2_LT",
            "x": 0.283
          },
          "slope": -67355.58033907689,
          "x_hi": 0.283,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "intercept": -9158.048007126354,
            "slope": -56442.88515232749
          },
          "entropy": {
            "intercept": 4.3021435319250045,
            "slope": -9.322534998545262
          },
          "intercept": -10440.732101169828,
          "kind": "two_phase",
          "left": {
            "phase": "NI5SB2_LT",
            "x": 0.283
          },
          "mu_a_rel": -10440.732101169828,
          "mu_b_rel": -64104.103443680935,
          "right": {
            "phase": "NISB_B81",
            "x": 0.46148095642270737
          },
          "slope": -53663.371342511105,
          "x_hi": 0.46148095642270737,
          "x_lo": 0.283
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -35205.364630479475,
                -203.52058450416467,
                1.0827540112647966,
                -0.0055299119546816655
              ],
              [
                -35407.80799088432,
                -120.82404057841497,
                0.38079336690364585,
                -0.0005290989816160163
              ],
              [
                -35528.25176719481,
                -160.08631367642292,
                0.6715562198360487,
                -0.0032918406641613274
              ],
              [
                -35687.66981649207,
                -158.75426576240423,
                0.6597453458782638,
                -0.002823446859338219
              ],
              [
                -35845.76716035546,
                -118.08259232896059,
                0.3648346991296876,
                -0.001266996264575937
              ],
              [
                -35963.48618498156,
                -195.59361709640456,
                1.0007267365837436,
                -0.005557538923454786
              ],
              [
                -36158.084632880295,
                -193.60878178941095,
                0.98080613011183,
                -0.005516273853515941
              ],
              [
                -36350.718124813444,
                -114.9982329139229,
                0.34565091110832213,
                -0.0007712364412952866
              ],
              [
                -36465.371478052715,
                -190.5154157032883,
                0.9496130709739816,
                -0.005287834865129071
              ],
              [
                -36654.942568519895,
                -113.17923904506743,
                0.3347423883889178,
                -0.0007464876463245673
              ],
              [
                -36767.78781166421,
                -187.5199771807997,
                0.9197030628785683,
                -0.005060781703093653
              ],
              [
                -36954.39314656384,
                -111.41745519560641,
                0.3242750703582118,
                -0.0007134966660800046
              ],
              [
                -37065.48704018575,
                -184.6184108322418,
                0.8910596117935086,
                -0.004851431659091077
              ],
              [
                -37249.21924283785,
                -109.71051213890735,
                0.31423361702090347,
                -0.0006792761201666053
              ],
              [
                -37358.61620063586,
                -145.44544662324708,
                -129.47313819041057,
                173.36537574785808
              ],
              [
                -37460.169409701666,
                281.71494687485006,
                -0.43827660650623557,
                0.005478561299071316
              ]
            ],
            "knots": [
              0.46148095642270737,
              0.4647127754715314,
              0.46665187587353646,
              0.46923734307620985,
              0.4718228102788833,
              0.4737619106808883,
              0.47699374468423006,
              0.4802255786875718,
              0.4821646790895769,
              0.48539651309291865,
              0.4873356134949237,
              0.4905674474982655,
              0.4925065479002705,
              0.4957383819036123,
              0.4976774823056173,
              0.5002629495082908,
              0.502848414232475
            ],
            "max_abs_error": 10.835469264900894
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -5.738478079853687,
                -0.06303753464945912,
                -0.0010734387545579538,
                -5.742218286586276e-06
              ],
              [
                -5.802594795475993,
                -0.1086634214032937,
                -0.0030830906654556595,
                -5.160270224290053e-05
              ],
              [
                -5.914392910246985,
                -0.091980904847202,
                -0.002113180879306495,
                -2.8597952007561322e-05
              ],
              [
                -6.008515593925503,
                -0.09628459286008255,
                -0.002239492755686745,
                -3.7873886691353054e-05
              ],
              [
                -6.107077553427963,
                -0.07565645861869602,
                -0.0013538667178478875,
                -1.1458275902972992e-05
              ],
              [
                -6.1840993370404105,
                -0.13066960544379255,
                -0.003947379805674944,
                -0.0001252146335098958
              ],
              [
                -6.318841536923387,
                -0.08336351243951572,
                -0.0015979581403885584,
                -2.2407910334462655e-05
              ],
              [
                -6.403825415413625,
                -0.14437620373830984,
                -0.0047430230920284255,
                -0.00020333653838269794
              ],
              [
                -6.553147978782345,
                -0.09268179927487,
                -0.001998690320757099,
                -3.880529495632612e-05
              ],
              [
                -6.6478672736729285,
                -0.16132236777145695,
                -0.006075264022901761,
                -0.00038276940136278137
              ],
              [
                -6.815647674868649,
                -0.13969129596319416,
                -0.004827615309224376,
                -0.0002771480857932662
              ],
              [
                -6.960443734226862,
                -0.15016651969218592,
                -0.005989900664781916,
                -0.0004671833117461943
              ],
              [
                -7.117067337895574,
                -0.16351986744042263,
                -0.00795781513180202,
                -0.0009479958136531519
              ],
              [
                -7.289493016281454,
                -0.18217776464542165,
                -0.011836916437950346,
                -0.0028877033967249777
              ],
              [
                -7.486395400761549,
                -0.213413151206688,
                -0.24542397036504862,
                0.2733713214438459
              ],
              [
                -7.671861200889441,
                0.4016654710542976,
                -0.07975689967359217,
                0.021073536842525387
              ]
            ],
            "knots": [
              0.46148095642270737,
              0.4634200418701947,
              0.46665187587353646,
              0.46923734307620985,
              0.4718228102788833,
              0.4737619106808883,
              0.47699374468423006,
              0.4789328450862351,
              0.4821646790895769,
              0.48410377949158195,
              0.4873356134949237,
              0.4899210806975971,
              0.4925065479002705,
              0.4950920151029439,
              0.4976774823056173,
              0.5002629495082908,
              0.502848414232475
            ],
            "max_abs_error": 0.018597971874234176
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -33494.43739097108,
              -103.31733304854326,
              0.7099183406516119,
              0.0006303679857495581
            ],
            [
              -33597.04417531098,
              -169.83028939970387,
              1.9906748620576877,
              0.008268843941721116
            ],
            [
              -33764.87552100467,
              -132.66220689615554,
              1.301601098876148,
              0.0052346388144144385
            ],
            [
              -33896.23089216315,
              -130.04701440132962,
              1.3274501111418289,
              0.008468652423303524
            ],
            [
              -34024.941987800914,
              -95.5256191917792,
              0.7684900610324235,
              0.0021492887322551724
            ],
            [
              -34119.69696764294,
              -156.63447423316646,
              2.1776380253976697,
              0.0317752041338224
            ],
            [
              -34274.12202864657,
              -91.31043783995199,
              0.8291459495857367,
              0.005890806594024411
            ],
            [
              -34364.59742973034,
              -149.39125389226993,
              2.3830762599533273,
              0.05519918388779388
            ],
            [
              -34511.55040817875,
              -86.6761709680952,
              0.9374154727750295,
              0.010808170360832037
            ],
            [
              -34597.2783555037,
              -141.2826098360297,
              2.749591549760595,
              0.10891638786014823
            ],
            [
              -34735.70245740211,
              -108.36702185324441,
              2.027735621910267,
              0.08031485468933397
            ],
            [
              -34841.961428778755,
              -104.0740252358576,
              2.365026298933543,
              0.1370143235021999
            ],
            [
              -34943.533413392186,
              -98.9412801883424,
              2.942688699703737,
              0.28041785010164233
            ],
            [
              -35039.25158703072,
              -92.24497518447562,
              4.090359304762387,
              0.8587910116548301
            ],
            [
              -35126.54741189879,
              -81.81631559093759,
              -56.2999814260821,
              91.8597162593197
            ],
            [
              -35172.803992656474,
              161.95838668001457,
              23.341243031240026,
              -6.277596448397105
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.46148095642270737,
            0.4634200418701947,
            0.46665187587353646,
            0.46923734307620985,
            0.4718228102788833,
            0.4737619106808883,
            0.47699374468423006,
            0.4789328450862351,
            0.4821646790895769,
            0.48410377949158195,
            0.4873356134949237,
            0.4899210806975971,
            0.4925065479002705,
            0.4950920151029439,
            0.4976774823056173,
            0.5002629495082908,
            0.502848414232475
          ],
          "max_abs_error": 5.290483950600901,
          "phase": "NISB_B81",
          "x_hi": 0.502848414232475,
          "x_lo": 0.46148095642270737
        },
        {
          "enthalpy": {
            "intercept": -74594.71904218776,
            "slope": 74407.77523068369
          },
          "entropy": {
            "intercept": -3.4124607371055724,
            "slope": 3.672265825858963
          },
          "intercept": -73577.2938734197,
          "kind": "two_phase",
          "left": {
            "phase": "NISB_B81",
            "x": 0.502848414232475
          },
          "mu_a_rel": -73577.2938734197,
          "mu_b_rel": -264.4046987159236,
          "right": {
            "phase": "NISB2_C18",
            "x": 0.6666666666666666
          },
          "slope": 73312.88917470377,
          "x_hi": 0.6666666666666666,
          "x_lo": 0.502848414232475
        },
        {
          "enthalpy": {
            "intercept": -74968.60666519593,
            "slope": 74968.60666519593
          },
          "entropy": {
            "intercept": -2.892850559598791,
            "slope": 2.892850559598791
          },
          "intercept": -74106.10327085157,
          "kind": "two_phase",
          "left": {
            "phase": "NISB2_C18",
            "x": 0.6666666666666666
          },
          "mu_a_rel": -74106.10327085157,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "RHOMBOHEDRAL_A7",
            "x": 1.0
          },
          "slope": 74106.10327085157,
          "x_hi": 1.0,
          "x_lo": 0.6666666666666666
        }
      ],
      "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": -4677.104973122014,
          "energy_per_atom": -4677.104973122014,
          "enthalpy": -4156.940800053415,
          "entries_at_x": 1,
          "entropy": 1.7446391852040932,
          "formula": "",
          "nsites": null,
          "phase": "FCC_A1",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.04388226599624593
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -23404.732039910934,
          "energy_per_atom": -23404.732039910934,
          "enthalpy": -22683.10109260845,
          "entries_at_x": 1,
          "entropy": 2.4203620570266153,
          "formula": "",
          "nsites": null,
          "phase": "NI3SB_D0A",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -25627.46619110047,
          "energy_per_atom": -25627.46619110047,
          "enthalpy": -25131.384505235033,
          "entries_at_x": 1,
          "entropy": 1.6638661273366964,
          "formula": "",
          "nsites": null,
          "phase": "NI5SB2_LT",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.283
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -35205.35603317876,
          "energy_per_atom": -35205.35603317876,
          "enthalpy": -35205.364630479475,
          "entries_at_x": 1,
          "entropy": -2.8835487825062955e-05,
          "formula": "",
          "nsites": null,
          "phase": "NISB_B81",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.46148095642270737
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -36712.023809118735,
          "energy_per_atom": -36712.023809118735,
          "enthalpy": -37178.88726087205,
          "entries_at_x": 1,
          "entropy": -1.5658676899322828,
          "formula": "",
          "nsites": null,
          "phase": "NISB_B81",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.502848414232475
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -24702.034423617195,
          "energy_per_atom": -24702.034423617195,
          "enthalpy": -24989.53555506531,
          "entries_at_x": 1,
          "entropy": -0.9642835198662638,
          "formula": "",
          "nsites": null,
          "phase": "NISB2_C18",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.6666666666666666
        },
        {
          "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": "RHOMBOHEDRAL_A7",
          "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": "NiSb-08Cao",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:53:07Z",
    "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/NiSb-08Cao.tdb",
    "source_sha256": "c50b9c6a21205dfe003993046d9f6f8fb89c4dae10d9a17fa254d5d30d9c234f"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "NI-SB",
  "x_element": "SB"
}
