{
  "counts": {
    "above_hull": 0,
    "entries": 8,
    "intervals": 7,
    "vertices": 8
  },
  "elements": [
    "AL",
    "V"
  ],
  "flags": [
    "has_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "AL": {
          "energy": -8437.646086441546,
          "phase": "FCC_A1"
        },
        "V": {
          "energy": -9209.853478203157,
          "phase": "BCC_A2"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -111220.9992118963
          },
          "entropy": {
            "intercept": 0.0,
            "slope": -18.90900184001127
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "FCC_A1",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -105583.28031329699,
          "right": {
            "phase": "AL10V",
            "x": 0.0909090909090909
          },
          "slope": -105583.28031329699,
          "x_hi": 0.0909090909090909,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -806.9999296999922,
            "slope": -102343.99998519638
          },
          "entropy": {
            "intercept": -0.7030001665080896,
            "slope": -11.176000008422283
          },
          "intercept": -597.4004300556207,
          "kind": "two_phase",
          "left": {
            "phase": "AL10V",
            "x": 0.0909090909090909
          },
          "mu_a_rel": -597.4004300556207,
          "mu_b_rel": -99609.27601274078,
          "right": {
            "phase": "AL7V",
            "x": 0.125
          },
          "slope": -99011.87558268516,
          "x_hi": 0.125,
          "x_lo": 0.0909090909090909
        },
        {
          "enthalpy": {
            "intercept": -909.999929700014,
            "slope": -101519.9999851962
          },
          "entropy": {
            "intercept": -0.507000166508069,
            "slope": -12.744000008422448
          },
          "intercept": -758.8378300556324,
          "kind": "two_phase",
          "left": {
            "phase": "AL7V",
            "x": 0.125
          },
          "mu_a_rel": -758.8378300556324,
          "mu_b_rel": -98479.2142127407,
          "right": {
            "phase": "AL23V4",
            "x": 0.14814814814814814
          },
          "slope": -97720.37638268506,
          "x_hi": 0.14814814814814814,
          "x_lo": 0.125
        },
        {
          "enthalpy": {
            "intercept": -1219.818111518187,
            "slope": -99428.72725792354
          },
          "entropy": {
            "intercept": -0.3513638028717505,
            "slope": -13.794545462967598
          },
          "intercept": -1115.058993691975,
          "kind": "two_phase",
          "left": {
            "phase": "AL23V4",
            "x": 0.14814814814814814
          },
          "mu_a_rel": -1115.058993691975,
          "mu_b_rel": -96430.94252183172,
          "right": {
            "phase": "AL3M_D022",
            "x": 0.25
          },
          "slope": -95315.88352813975,
          "x_hi": 0.25,
          "x_lo": 0.14814814814814814
        },
        {
          "enthalpy": {
            "intercept": -32459.99992969999,
            "slope": 25532.00001480366
          },
          "entropy": {
            "intercept": -12.714285880793804,
            "slope": 35.65714284872062
          },
          "intercept": -28669.23559434132,
          "kind": "two_phase",
          "left": {
            "phase": "AL3M_D022",
            "x": 0.25
          },
          "mu_a_rel": -28669.23559434132,
          "mu_b_rel": -13768.412719883685,
          "right": {
            "phase": "AL8V5_D82",
            "x": 0.38461538461538464
          },
          "slope": 14900.822874457635,
          "x_hi": 0.38461538461538464,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "intercept": -29866.55948516337,
            "slope": 18789.054859008455
          },
          "entropy": {
            "intercept": -1.644847206797417,
            "slope": 6.876602296330011
          },
          "intercept": -29376.148290456713,
          "kind": "two_phase",
          "left": {
            "phase": "AL8V5_D82",
            "x": 0.38461538461538464
          },
          "mu_a_rel": -29376.148290456713,
          "mu_b_rel": -12637.35240609906,
          "right": {
            "phase": "BCC_A2",
            "x": 0.621794016708241
          },
          "slope": 16738.795884357653,
          "x_hi": 0.621794016708241,
          "x_lo": 0.38461538461538464
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -18183.63759422901,
                5871.546739869839,
                12960.628900426513,
                -648.5380460673405
              ]
            ],
            "knots": [
              0.621794016708241,
              1.0
            ],
            "max_abs_error": 0.033160649947603815
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -2.8829943331861667,
                0.02221502199350691,
                2.86081838023659,
                -3.9069043929806924e-05
              ]
            ],
            "knots": [
              0.621794016708241,
              1.0
            ],
            "max_abs_error": 3.6179536102576293e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -17324.072833789553,
              5864.923331062417,
              12107.675900359161,
              -648.5263976320311
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.621794016708241,
            1.0
          ],
          "max_abs_error": 0.032888785943214316,
          "phase": "BCC_A2",
          "x_hi": 1.0,
          "x_lo": 0.621794016708241
        }
      ],
      "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": -9598.480028481543,
          "energy_per_atom": -9598.480028481543,
          "enthalpy": -10110.999928354207,
          "entries_at_x": 1,
          "entropy": -1.7190001672737516,
          "formula": "",
          "nsites": null,
          "phase": "AL10V",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0909090909090909
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -12973.884877891265,
          "energy_per_atom": -12973.884877891265,
          "enthalpy": -13599.99992784954,
          "entries_at_x": 1,
          "entropy": -2.100000167560875,
          "formula": "",
          "nsites": null,
          "phase": "AL7V",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.125
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -15235.930627490456,
          "energy_per_atom": -15235.930627490456,
          "enthalpy": -15949.999927506859,
          "entries_at_x": 1,
          "entropy": -2.395000167755839,
          "formula": "",
          "nsites": null,
          "phase": "AL23V4",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.14814814814814814
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -24944.029875726912,
          "energy_per_atom": -24944.029875726912,
          "enthalpy": -26076.999925999073,
          "entries_at_x": 1,
          "entropy": -3.80000016861365,
          "formula": "",
          "nsites": null,
          "phase": "AL3M_D022",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -22938.149873396076,
          "energy_per_atom": -22938.149873396076,
          "enthalpy": -22639.99992400627,
          "entries_at_x": 1,
          "entropy": 0.9999998302525874,
          "formula": "",
          "nsites": null,
          "phase": "AL8V5_D82",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.38461538461538464
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -18968.065162662595,
          "energy_per_atom": -18968.065162662595,
          "enthalpy": -18183.63759422901,
          "entries_at_x": 1,
          "entropy": 2.6309829563427343,
          "formula": "",
          "nsites": null,
          "phase": "BCC_A2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.621794016708241
        },
        {
          "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-98Sau-LB",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:14:58Z",
    "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-98Sau-LB.tdb",
    "source_sha256": "451cd3e290672e3661899c3107fd7f77eb9d59656653cf7ad9c79675614eade8"
  },
  "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"
}
