{
  "counts": {
    "above_hull": 0,
    "entries": 9,
    "intervals": 8,
    "vertices": 9
  },
  "elements": [
    "AL",
    "ZR"
  ],
  "flags": [
    "has_intermediate_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "AL": {
          "energy": -8437.646121851187,
          "phase": "FCC_A1"
        },
        "ZR": {
          "energy": -9906.890074181147,
          "phase": "HCP_A3"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -158089.9996735273
          },
          "entropy": {
            "intercept": 0.0,
            "slope": 3.7659991807403514
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "FCC_A1",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -159212.83232926505,
          "right": {
            "phase": "AL3ZR_D023",
            "x": 0.25
          },
          "slope": -159212.83232926505,
          "x_hi": 0.25,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -24999.999905949157,
            "slope": -58090.00004973066
          },
          "entropy": {
            "intercept": -0.7380002056117694,
            "slope": 6.718000003187429
          },
          "intercept": -24779.965144646023,
          "kind": "two_phase",
          "left": {
            "phase": "AL3ZR_D023",
            "x": 0.25
          },
          "mu_a_rel": -24779.965144646023,
          "mu_b_rel": -84872.93689532697,
          "right": {
            "phase": "AL2ZR_C14",
            "x": 0.3333333333333333
          },
          "slope": -60092.971750680954,
          "x_hi": 0.3333333333333333,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "intercept": -38299.999905949066,
            "slope": -18190.00004973094
          },
          "entropy": {
            "intercept": 1.4759997943882084,
            "slope": 0.07600000318749518
          },
          "intercept": -38740.069244645914,
          "kind": "two_phase",
          "left": {
            "phase": "AL2ZR_C14",
            "x": 0.3333333333333333
          },
          "mu_a_rel": -38740.069244645914,
          "mu_b_rel": -56952.72869532718,
          "right": {
            "phase": "AL3ZR2",
            "x": 0.4
          },
          "slope": -18212.659450681265,
          "x_hi": 0.4,
          "x_lo": 0.3333333333333333
        },
        {
          "enthalpy": {
            "intercept": -48911.999905949175,
            "slope": 8339.99995026934
          },
          "entropy": {
            "intercept": 3.9479997943882035,
            "slope": -6.103999996812492
          },
          "intercept": -50089.09604464598,
          "kind": "two_phase",
          "left": {
            "phase": "AL3ZR2",
            "x": 0.4
          },
          "mu_a_rel": -50089.09604464598,
          "mu_b_rel": -39929.18849532709,
          "right": {
            "phase": "ALZR_B33",
            "x": 0.5
          },
          "slope": 10159.907549318888,
          "x_hi": 0.5,
          "x_lo": 0.4
        },
        {
          "enthalpy": {
            "intercept": -58596.999905949066,
            "slope": 27709.999950269124
          },
          "entropy": {
            "intercept": -2.3820002056116665,
            "slope": 6.556000003187248
          },
          "intercept": -57886.80654464599,
          "kind": "two_phase",
          "left": {
            "phase": "ALZR_B33",
            "x": 0.5
          },
          "mu_a_rel": -57886.80654464599,
          "mu_b_rel": -32131.47799532708,
          "right": {
            "phase": "AL4ZR5",
            "x": 0.5555555555555556
          },
          "slope": 25755.328549318907,
          "x_hi": 0.5555555555555556,
          "x_lo": 0.5
        },
        {
          "enthalpy": {
            "intercept": -82184.49990594908,
            "slope": 70167.49995026916
          },
          "entropy": {
            "intercept": -2.6820002056119754,
            "slope": 7.096000003187804
          },
          "intercept": -81384.861544646,
          "kind": "two_phase",
          "left": {
            "phase": "AL4ZR5",
            "x": 0.5555555555555556
          },
          "mu_a_rel": -81384.861544646,
          "mu_b_rel": -13333.033995327074,
          "right": {
            "phase": "AL2ZR3",
            "x": 0.6000000000000001
          },
          "slope": 68051.82754931893,
          "x_hi": 0.6000000000000001,
          "x_lo": 0.5555555555555556
        },
        {
          "enthalpy": {
            "intercept": -98549.99990594914,
            "slope": 97443.33328360258
          },
          "entropy": {
            "intercept": 1.683999794388228,
            "slope": -0.18066666347920102
          },
          "intercept": -99052.08444464597,
          "kind": "two_phase",
          "left": {
            "phase": "AL2ZR3",
            "x": 0.6000000000000001
          },
          "mu_a_rel": -99052.08444464597,
          "mu_b_rel": -1554.8853953271027,
          "right": {
            "phase": "ALZR3_L12",
            "x": 0.75
          },
          "slope": 97497.19904931886,
          "x_hi": 0.75,
          "x_lo": 0.6000000000000001
        },
        {
          "enthalpy": {
            "intercept": -101869.99977298883,
            "slope": 101869.99977298883
          },
          "entropy": {
            "intercept": 6.19399918711531,
            "slope": -6.19399918711531
          },
          "intercept": -103716.74063062728,
          "kind": "two_phase",
          "left": {
            "phase": "ALZR3_L12",
            "x": 0.75
          },
          "mu_a_rel": -103716.74063062728,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "HCP_A3",
            "x": 1.0
          },
          "slope": 103716.74063062728,
          "x_hi": 1.0,
          "x_lo": 0.75
        }
      ],
      "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": -39803.20808231626,
          "energy_per_atom": -39803.20808231626,
          "enthalpy": -39522.49991838182,
          "entries_at_x": 1,
          "entropy": 0.9414997951850879,
          "formula": "",
          "nsites": null,
          "phase": "AL3ZR_D023",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -44810.95572820634,
          "energy_per_atom": -44810.95572820634,
          "enthalpy": -44363.333255859376,
          "entries_at_x": 1,
          "entropy": 1.5013331287840401,
          "formula": "",
          "nsites": null,
          "phase": "AL2ZR_C14",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.3333333333333333
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -46025.133024918425,
          "energy_per_atom": -46025.133024918425,
          "enthalpy": -45575.99992584144,
          "entries_at_x": 1,
          "entropy": 1.5063997956632065,
          "formula": "",
          "nsites": null,
          "phase": "AL3ZR2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.4
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -45009.142269986536,
          "energy_per_atom": -45009.142269986536,
          "enthalpy": -44741.999930814505,
          "entries_at_x": 1,
          "entropy": 0.8959997959819574,
          "formula": "",
          "nsites": null,
          "phase": "ALZR_B33",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.5
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -43578.29068391326,
          "energy_per_atom": -43578.29068391326,
          "enthalpy": -43202.55548913289,
          "entries_at_x": 1,
          "entropy": 1.2602220183812491,
          "formula": "",
          "nsites": null,
          "phase": "AL4ZR5",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.5555555555555556
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -40553.76501505464,
          "energy_per_atom": -40553.76501505464,
          "enthalpy": -40083.999935787586,
          "entries_at_x": 1,
          "entropy": 1.5755997963007076,
          "formula": "",
          "nsites": null,
          "phase": "AL2ZR3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.6000000000000001
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -25929.18515765682,
          "energy_per_atom": -25929.18515765682,
          "enthalpy": -25467.499943247207,
          "entries_at_x": 1,
          "entropy": 1.5484997967788274,
          "formula": "",
          "nsites": null,
          "phase": "ALZR3_L12",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.75
        },
        {
          "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": "HCP_A3",
          "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": "AlZr-86Sau",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:15:32Z",
    "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/AlZr-86Sau.tdb",
    "source_sha256": "31b2d1ad4273b15cc9f1761c13d595d0e327bcd20d93005c77ab781bbb2c2d3f"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "AL-ZR",
  "x_element": "ZR"
}
