{
  "counts": {
    "above_hull": 0,
    "entries": 9,
    "intervals": 8,
    "vertices": 9
  },
  "elements": [
    "AL",
    "V"
  ],
  "flags": [
    "has_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "AL": {
          "energy": -8437.646079384805,
          "phase": "FCC_A1"
        },
        "V": {
          "energy": -9209.853473218524,
          "phase": "BCC_A2"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -107917.14926529086
          },
          "entropy": {
            "intercept": 0.0,
            "slope": -15.9045019550082
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "FCC_A1",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -103175.22200740514,
          "right": {
            "phase": "AL21V2",
            "x": 0.08695652173913043
          },
          "slope": -103175.22200740514,
          "x_hi": 0.08695652173913043,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": 17.13515016648853,
            "slope": -108114.20349220547
          },
          "entropy": {
            "intercept": 0.3870068483657403,
            "slope": -20.355080711214214
          },
          "intercept": -98.25094167375937,
          "kind": "two_phase",
          "left": {
            "phase": "AL21V2",
            "x": 0.08695652173913043
          },
          "mu_a_rel": -98.25094167375937,
          "mu_b_rel": -102143.58711983068,
          "right": {
            "phase": "AL45V7",
            "x": 0.13461538461538464
          },
          "slope": -102045.33617815693,
          "x_hi": 0.13461538461538464,
          "x_lo": 0.08695652173913043
        },
        {
          "enthalpy": {
            "intercept": 46.179009815636164,
            "slope": -108329.95787817058
          },
          "entropy": {
            "intercept": 0.823094567664056,
            "slope": -23.59458948314456
          },
          "intercept": -199.22663553337588,
          "kind": "two_phase",
          "left": {
            "phase": "AL45V7",
            "x": 0.13461538461538464
          },
          "mu_a_rel": -199.22663553337588,
          "mu_b_rel": -101494.45765930456,
          "right": {
            "phase": "AL23V4",
            "x": 0.14814814814814814
          },
          "slope": -101295.2310237712,
          "x_hi": 0.14814814814814814,
          "x_lo": 0.13461538461538464
        },
        {
          "enthalpy": {
            "intercept": 62.28006244720018,
            "slope": -108438.63998343363
          },
          "entropy": {
            "intercept": 0.926145285367352,
            "slope": -24.290181827641806
          },
          "intercept": -213.85015438507617,
          "kind": "two_phase",
          "left": {
            "phase": "AL23V4",
            "x": 0.14814814814814814
          },
          "mu_a_rel": -213.85015438507617,
          "mu_b_rel": -101410.37242590729,
          "right": {
            "phase": "AL3M_D022",
            "x": 0.25
          },
          "slope": -101196.52227152222,
          "x_hi": 0.25,
          "x_lo": 0.14814814814814814
        },
        {
          "enthalpy": {
            "intercept": -33841.42011712729,
            "slope": 27176.16073486433
          },
          "entropy": {
            "intercept": -14.020922271807157,
            "slope": 35.49808840105623
          },
          "intercept": -29661.08214178799,
          "kind": "two_phase",
          "left": {
            "phase": "AL3M_D022",
            "x": 0.25
          },
          "mu_a_rel": -29661.08214178799,
          "mu_b_rel": -13068.67646369856,
          "right": {
            "phase": "AL8V5_D82",
            "x": 0.38473618202445703
          },
          "slope": 16592.405678089428,
          "x_hi": 0.38473618202445703,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -23385.767793912626,
                35.57221665183695,
                5.459898773096938e-07,
                -2.559993106387992e-07
              ]
            ],
            "knots": [
              0.38473618202445703,
              0.38575151574674926
            ],
            "max_abs_error": 4.477165930438787e-06
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -5.903742273117702,
                0.05880136080296524,
                -0.01919706775718373,
                0.006497834774091785
              ]
            ],
            "knots": [
              0.38473618202445703,
              0.38575151574674926
            ],
            "max_abs_error": 0.00040820893509163625
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -21625.56703518258,
              18.040590928618847,
              5.7236062977670095,
              -1.9373296940673477
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.38473618202445703,
            0.38575151574674926
          ],
          "max_abs_error": 0.12170752229576465,
          "phase": "AL8V5_D82",
          "x_hi": 0.38575151574674926,
          "x_lo": 0.38473618202445703
        },
        {
          "enthalpy": {
            "intercept": -33401.88659286377,
            "slope": 26057.42454811774
          },
          "entropy": {
            "intercept": -5.349731088471999,
            "slope": 13.05569798530298
          },
          "intercept": -31806.864268835852,
          "kind": "two_phase",
          "left": {
            "phase": "AL8V5_D82",
            "x": 0.38575151574674926
          },
          "mu_a_rel": -31806.864268835852,
          "mu_b_rel": -9641.996075036179,
          "right": {
            "phase": "BCC_A2",
            "x": 0.6603121759260001
          },
          "slope": 22164.868193799673,
          "x_hi": 0.6603121759260001,
          "x_lo": 0.38575151574674926
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -16195.851890468573,
                7016.691357303554,
                9649.058675666827,
                -469.89814250181007
              ]
            ],
            "knots": [
              0.6603121759260001,
              1.0
            ],
            "max_abs_error": 0.022351428317051614
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -2.057036825687935,
                0.15776868151028783,
                1.8992999016961516,
                -3.175751850426067e-05
              ]
            ],
            "knots": [
              0.6603121759260001,
              1.0
            ],
            "max_abs_error": 3.0899343179680017e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -15582.546360889715,
              6969.652624911437,
              9082.782409976066,
              -469.88867399778246
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.6603121759260001,
            1.0
          ],
          "max_abs_error": 0.022073257872762042,
          "phase": "BCC_A2",
          "x_hi": 1.0,
          "x_lo": 0.6603121759260001
        }
      ],
      "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": -8971.758435426535,
          "energy_per_atom": -8971.758435426535,
          "enthalpy": -9384.099936112249,
          "entries_at_x": 1,
          "entropy": -1.383000170000713,
          "formula": "",
          "nsites": null,
          "phase": "AL21V2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.08695652173913043
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -13835.123119502578,
          "energy_per_atom": -13835.123119502578,
          "enthalpy": -14536.699935322713,
          "entries_at_x": 1,
          "entropy": -2.353100170451558,
          "formula": "",
          "nsites": null,
          "phase": "AL45V7",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.13461538461538464
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -15205.927527943923,
          "energy_per_atom": -15205.927527943923,
          "enthalpy": -16002.703638802226,
          "entries_at_x": 1,
          "entropy": -2.672400170579582,
          "formula": "",
          "nsites": null,
          "phase": "AL23V4",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.14814814814814814
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -25512.98072226563,
          "energy_per_atom": -25512.98072226563,
          "enthalpy": -27047.37993341121,
          "entries_at_x": 1,
          "entropy": -5.1464001715431,
          "formula": "",
          "nsites": null,
          "phase": "AL3M_D022",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -23277.38333059894,
          "energy_per_atom": -23277.38333059894,
          "enthalpy": -23385.767793912626,
          "entries_at_x": 1,
          "entropy": -0.36352327121812067,
          "formula": "",
          "nsites": null,
          "phase": "AL8V5_D82",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.38473618202445703
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -23256.732766750716,
          "energy_per_atom": -23256.732766750716,
          "enthalpy": -23350.195576970797,
          "entries_at_x": 1,
          "entropy": -0.3134758015095933,
          "formula": "",
          "nsites": null,
          "phase": "AL8V5_D82",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.38575151574674926
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -17171.131922675,
          "energy_per_atom": -17171.131922675,
          "enthalpy": -16195.851890468573,
          "entries_at_x": 1,
          "entropy": 3.2711052564361083,
          "formula": "",
          "nsites": null,
          "phase": "BCC_A2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.6603121759260001
        },
        {
          "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": "BCC_A2",
          "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": "AlV-17Kro",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:14:48Z",
    "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/AlV-17Kro.tdb",
    "source_sha256": "a875173b0cc3fff66d7fd5df804d858827a4646c99b5b2bc4653428f0ce21b5a"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "AL-V",
  "x_element": "V"
}
