{
  "counts": {
    "above_hull": 0,
    "entries": 8,
    "intervals": 7,
    "vertices": 8
  },
  "elements": [
    "AG",
    "MG"
  ],
  "flags": [
    "has_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "AG": {
          "energy": -12686.282521048122,
          "phase": "FCC_A1"
        },
        "MG": {
          "energy": -9740.858518388231,
          "phase": "HCP_A3"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                0.0,
                -7634.282999847506,
                847.1848059144149,
                46.950890099010394
              ]
            ],
            "knots": [
              0.0,
              0.1667772794600237
            ],
            "max_abs_error": 0.5404342962015107
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.0,
                1.7219032464305968,
                -0.4362586122656512,
                -0.009274065687513766
              ]
            ],
            "knots": [
              0.0,
              0.1667772794600237
            ],
            "max_abs_error": 0.0005727337147354294
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              0.0,
              -8147.668452770708,
              977.2553111606439,
              49.71595278443783
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.0,
            0.1667772794600237
          ],
          "max_abs_error": 0.3696737392201612,
          "phase": "FCC_A1",
          "x_hi": 0.1667772794600237,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -220.37745158279085,
            "slope": -39092.674214139995
          },
          "entropy": {
            "intercept": 4.389169953000834,
            "slope": 3.8066021768267038
          },
          "intercept": -1529.008473070001,
          "kind": "two_phase",
          "left": {
            "phase": "FCC_A1",
            "x": 0.1667772794600237
          },
          "mu_a_rel": -1529.008473070001,
          "mu_b_rel": -41756.621126230806,
          "right": {
            "phase": "AG3MG_L12",
            "x": 0.24999999999999997
          },
          "slope": -40227.6126531608,
          "x_hi": 0.24999999999999997,
          "x_lo": 0.1667772794600237
        },
        {
          "enthalpy": {
            "intercept": -5304.834132269119,
            "slope": -18754.84749139468
          },
          "entropy": {
            "intercept": 0.464300587014673,
            "slope": 19.50607964077135
          },
          "intercept": -5443.2653522875235,
          "kind": "two_phase",
          "left": {
            "phase": "AG3MG_L12",
            "x": 0.24999999999999997
          },
          "mu_a_rel": -5443.2653522875235,
          "mu_b_rel": -30013.850488578235,
          "right": {
            "phase": "BCC_A2",
            "x": 0.36592596003558275
          },
          "slope": -24570.585136290712,
          "x_hi": 0.36592596003558275,
          "x_lo": 0.24999999999999997
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -12167.719705878659,
                -1657.2518944549904,
                521.9059036275945,
                7.660024899424911
              ]
            ],
            "knots": [
              0.36592596003558275,
              0.4483863379151356
            ],
            "max_abs_error": 0.14903014155970595
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                2.1415436203506832,
                0.8602485457987264,
                -0.005237336540644177,
                -0.022520793636053194
              ]
            ],
            "knots": [
              0.36592596003558275,
              0.4483863379151356
            ],
            "max_abs_error": 9.178756995709136e-05
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -12806.220936286214,
              -1913.7349983852062,
              523.4674155179218,
              14.374599521606797
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.36592596003558275,
            0.4483863379151356
          ],
          "max_abs_error": 0.17639660551503766,
          "phase": "BCC_A2",
          "x_hi": 0.4483863379151356,
          "x_lo": 0.36592596003558275
        },
        {
          "enthalpy": {
            "intercept": -737.8884123318912,
            "slope": -28006.02114208809
          },
          "entropy": {
            "intercept": 35.01652881856784,
            "slope": -58.707690681515345
          },
          "intercept": -11178.066479587877,
          "kind": "two_phase",
          "left": {
            "phase": "BCC_A2",
            "x": 0.4483863379151356
          },
          "mu_a_rel": -11178.066479587877,
          "mu_b_rel": -21680.389644982206,
          "right": {
            "phase": "AGMG3",
            "x": 0.75
          },
          "slope": -10502.323165394328,
          "x_hi": 0.75,
          "x_lo": 0.4483863379151356
        },
        {
          "enthalpy": {
            "intercept": -86973.16985432434,
            "slope": 86974.35411390183
          },
          "entropy": {
            "intercept": -36.06958641749626,
            "slope": 36.07379629990346
          },
          "intercept": -76219.0226639479,
          "kind": "two_phase",
          "left": {
            "phase": "AGMG3",
            "x": 0.75
          },
          "mu_a_rel": -76219.0226639479,
          "mu_b_rel": -0.07091686221247073,
          "right": {
            "phase": "HCP_A3",
            "x": 0.9999713803994001
          },
          "slope": 76218.95174708568,
          "x_hi": 0.9999713803994001,
          "x_lo": 0.75
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -1.304911699672819,
                1.3048909974416096,
                0.0043003541585242555,
                -0.0042796519273149425
              ]
            ],
            "knots": [
              0.9999713803994001,
              1.0
            ],
            "max_abs_error": 0.000613926570547485
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.00045014794339182573,
                -0.00045032103302002736,
                -1.917868571658254e-05,
                1.935177534478417e-05
              ]
            ],
            "knots": [
              0.9999713803994001,
              1.0
            ],
            "max_abs_error": 2.776193065097616e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -1.4391233089905684,
              1.439154213109739,
              0.010018480344568648,
              -0.010049384463739486
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.9999713803994001,
            1.0
          ],
          "max_abs_error": 0.0014416485665064704,
          "phase": "HCP_A3",
          "x_hi": 1.0,
          "x_lo": 0.9999713803994001
        }
      ],
      "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": -8238.060270535785,
          "energy_per_atom": -8238.060270535785,
          "enthalpy": -6740.147303834079,
          "entries_at_x": 1,
          "entropy": 5.024024708038596,
          "formula": "",
          "nsites": null,
          "phase": "FCC_A1",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.1667772794600237
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -11585.9116363602,
          "energy_per_atom": -11585.9116363602,
          "enthalpy": -9993.546005117789,
          "entries_at_x": 1,
          "entropy": 5.34082049720751,
          "formula": "",
          "nsites": null,
          "phase": "AG3MG_L12",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.24999999999999997
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -14434.280306920722,
          "energy_per_atom": -14434.280306920722,
          "enthalpy": -12167.719705878659,
          "entries_at_x": 1,
          "entropy": 7.602081506094464,
          "formula": "",
          "nsites": null,
          "phase": "BCC_A2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.36592596003558275
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -15887.164703320334,
          "energy_per_atom": -15887.164703320334,
          "enthalpy": -13295.405671806635,
          "entries_at_x": 1,
          "entropy": 8.692802386428646,
          "formula": "",
          "nsites": null,
          "phase": "BCC_A2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.4483863379151356
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -19054.80885363362,
          "energy_per_atom": -19054.80885363362,
          "enthalpy": -21742.40426889796,
          "entries_at_x": 1,
          "entropy": -9.014239192568667,
          "formula": "",
          "nsites": null,
          "phase": "AGMG3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.75
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -2.2522728193453077,
          "energy_per_atom": -2.2522728193453077,
          "enthalpy": -1.304911699672819,
          "entries_at_x": 1,
          "entropy": 0.0031774647649740473,
          "formula": "",
          "nsites": null,
          "phase": "HCP_A3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.9999713803994001
        },
        {
          "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": "AgMg-98Spe",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:00:25Z",
    "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/AgMg-98Spe.tdb",
    "source_sha256": "05967f03ceeb90e48c6d1c244113bd4ac44289fc92004fdbc7cb6bbd179572eb"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "AG-MG",
  "x_element": "MG"
}