{
  "counts": {
    "above_hull": 0,
    "entries": 6,
    "intervals": 5,
    "vertices": 6
  },
  "elements": [
    "AL",
    "MG"
  ],
  "flags": [
    "has_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "AL": {
          "energy": -8437.646012260868,
          "phase": "FCC_A1"
        },
        "MG": {
          "energy": -9740.858468828586,
          "phase": "HCP_A3"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                0.0,
                20.56262106844936,
                -0.048687833516815715,
                -0.0010748833708191796
              ]
            ],
            "knots": [
              0.0,
              0.001739124519011326
            ],
            "max_abs_error": 0.00015944810111268026
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.0,
                0.01417646420716015,
                4.468779366207515e-06,
                -1.7902959450300654e-05
              ]
            ],
            "knots": [
              0.0,
              0.001739124519011326
            ],
            "max_abs_error": 2.576726088616109e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              0.0,
              16.335908265113172,
              -0.05002020043563249,
              0.004262884312321802
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.0,
            0.001739124519011326
          ],
          "max_abs_error": 0.0006088027637556337,
          "phase": "FCC_A1",
          "x_hi": 0.001739124519011326,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": 31.67943353410452,
            "slope": -6420.802570761796
          },
          "entropy": {
            "intercept": 0.12058664192871238,
            "slope": -0.053356069559709465
          },
          "intercept": -4.273473756940209,
          "kind": "two_phase",
          "left": {
            "phase": "FCC_A1",
            "x": 0.001739124519011326
          },
          "mu_a_rel": -4.273473756940209,
          "mu_b_rel": -6409.167932379511,
          "right": {
            "phase": "AL12MG17_A12",
            "x": 0.5757049692605126
          },
          "slope": -6404.894458622571,
          "x_hi": 0.5757049692605126,
          "x_lo": 0.001739124519011326
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -3664.808513094136,
                -883.4000748793669,
                326.00284361760384,
                7.4782744773307
              ],
              [
                -4214.727469878569,
                -208.95889984687534,
                348.4821032482099,
                0.10038004570253634
              ]
            ],
            "knots": [
              0.5757049692605126,
              0.639044608287092,
              0.7023842304894178
            ],
            "max_abs_error": 0.1140036909155242
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -5.577605110681041,
                -2.8830781831732626,
                0.8809691868111207,
                0.22246201995460607
              ]
            ],
            "knots": [
              0.5757049692605126,
              0.7023842304894178
            ],
            "max_abs_error": 1.0473507277453109e-05
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -2001.8455493445833,
              -453.60513764182605,
              260.3132976195899,
              -0.7883278200175567
            ],
            [
              -2195.925717186837,
              64.65716021188115,
              257.89552310104114,
              -8.166142792158325
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.5757049692605126,
            0.639044608287092,
            0.7023842304894178
          ],
          "max_abs_error": 0.11400916463162503,
          "phase": "AL12MG17_A12",
          "x_hi": 0.7023842304894178,
          "x_lo": 0.5757049692605126
        },
        {
          "enthalpy": {
            "intercept": -14022.469565654777,
            "slope": 14162.28503918998
          },
          "entropy": {
            "intercept": -9.967407194234287,
            "slope": 10.92315855597025
          },
          "intercept": -11050.687110693838,
          "kind": "two_phase",
          "left": {
            "phase": "AL12MG17_A12",
            "x": 0.7023842304894178
          },
          "mu_a_rel": -11050.687110693838,
          "mu_b_rel": -145.1417949663737,
          "right": {
            "phase": "HCP_A3",
            "x": 0.9576001185676192
          },
          "slope": 10905.545315727464,
          "x_hi": 0.9576001185676192,
          "x_lo": 0.7023842304894178
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -460.6637329380347,
                399.0085744457194,
                60.286488580898435,
                1.3686699114168732
              ]
            ],
            "knots": [
              0.9576001185676192,
              1.0
            ],
            "max_abs_error": 0.00022151924497393338
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -0.9665566950963245,
                0.8863496552767686,
                0.0786935388203367,
                0.0015135009992193194
              ]
            ],
            "knots": [
              0.9576001185676192,
              1.0
            ],
            "max_abs_error": 1.3118392914179822e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -172.48485429506297,
              134.7434247248609,
              36.82400998155734,
              0.9174195886447478
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.9576001185676192,
            1.0
          ],
          "max_abs_error": 0.0006091759960042964,
          "phase": "HCP_A3",
          "x_hi": 1.0,
          "x_lo": 0.9576001185676192
        }
      ],
      "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": -15.412382751610494,
          "energy_per_atom": -15.412382751610494,
          "enthalpy": 20.512858351561725,
          "entries_at_x": 1,
          "entropy": 0.12049384907990301,
          "formula": "",
          "nsites": null,
          "phase": "FCC_A1",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.001739124519011326
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -3691.6030411750744,
          "energy_per_atom": -3691.6030411750744,
          "enthalpy": -3664.808513094136,
          "entries_at_x": 1,
          "entropy": 0.08986928754297807,
          "formula": "",
          "nsites": null,
          "phase": "AL12MG17_A12",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.5757049692605126
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -3390.8040560391273,
          "energy_per_atom": -3390.8040560391273,
          "enthalpy": -4075.1038864315306,
          "entries_at_x": 1,
          "entropy": -2.295152877385224,
          "formula": "",
          "nsites": null,
          "phase": "AL12MG17_A12",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.7023842304894178
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -607.5356233086732,
          "energy_per_atom": -607.5356233086732,
          "enthalpy": -460.6637329380347,
          "entries_at_x": 1,
          "entropy": 0.4926107340957273,
          "formula": "",
          "nsites": null,
          "phase": "HCP_A3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.9576001185676192
        },
        {
          "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": "AlMg-86Lud",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:11:28Z",
    "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/AlMg-86Lud.tdb",
    "source_sha256": "bcdbc20f78145d8ab0ba074064b84f5cc2811258f2944ec45534d816762d50c9"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "AL-MG",
  "x_element": "MG"
}
