{
  "counts": {
    "above_hull": 0,
    "entries": 6,
    "intervals": 5,
    "vertices": 6
  },
  "elements": [
    "ER",
    "FE"
  ],
  "flags": [
    "has_intermediate_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "ER": {
          "energy": -21818.069933344475,
          "phase": "HCP_A3"
        },
        "FE": {
          "energy": -8133.457910676745,
          "phase": "BCC_A2"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -9650.087096470847
          },
          "entropy": {
            "intercept": 0.0,
            "slope": 5.640310881114438
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "HCP_A3",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -11331.745785675117,
          "right": {
            "phase": "ERFE2_C15",
            "x": 0.6666666666666666
          },
          "slope": -11331.745785675117,
          "x_hi": 0.6666666666666666,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -19421.93290346927,
            "slope": 19482.81225873306
          },
          "entropy": {
            "intercept": 1.20300040270739,
            "slope": 3.835810277053353
          },
          "intercept": -19780.607473536467,
          "kind": "two_phase",
          "left": {
            "phase": "ERFE2_C15",
            "x": 0.6666666666666666
          },
          "mu_a_rel": -19780.607473536467,
          "mu_b_rel": -1441.4420489068798,
          "right": {
            "phase": "ERFE3",
            "x": 0.75
          },
          "slope": 18339.165424629588,
          "x_hi": 0.75,
          "x_lo": 0.6666666666666666
        },
        {
          "enthalpy": {
            "intercept": -21149.844103469284,
            "slope": 21786.69385873308
          },
          "entropy": {
            "intercept": 1.6770004027072747,
            "slope": 3.2038102770535066
          },
          "intercept": -21649.84177353656,
          "kind": "two_phase",
          "left": {
            "phase": "ERFE3",
            "x": 0.75
          },
          "mu_a_rel": -21649.84177353656,
          "mu_b_rel": -818.3639489068519,
          "right": {
            "phase": "ER6FE23_D8A",
            "x": 0.7931034482758621
          },
          "slope": 20831.477824629706,
          "x_hi": 0.7931034482758621,
          "x_lo": 0.75
        },
        {
          "enthalpy": {
            "intercept": -21065.80645704075,
            "slope": 21680.733348018843
          },
          "entropy": {
            "intercept": 2.3292146884218177,
            "slope": 2.381453134196039
          },
          "intercept": -21760.2618163937,
          "kind": "two_phase",
          "left": {
            "phase": "ER6FE23_D8A",
            "x": 0.7931034482758621
          },
          "mu_a_rel": -21760.2618163937,
          "mu_b_rel": -789.5587203354225,
          "right": {
            "phase": "ER2FE17",
            "x": 0.894736842105263
          },
          "slope": 20970.703096058278,
          "x_hi": 0.894736842105263,
          "x_lo": 0.7931034482758621
        },
        {
          "enthalpy": {
            "intercept": -15838.927883726981,
            "slope": 15838.927883726981
          },
          "entropy": {
            "intercept": 42.36989118067356,
            "slope": -42.36989118067356
          },
          "intercept": -28471.510939244792,
          "kind": "two_phase",
          "left": {
            "phase": "ER2FE17",
            "x": 0.894736842105263
          },
          "mu_a_rel": -28471.510939244792,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "BCC_A2",
            "x": 1.0
          },
          "slope": 28471.510939244792,
          "x_hi": 1.0,
          "x_lo": 0.894736842105263
        }
      ],
      "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": "HCP_A3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -7554.497190450078,
          "energy_per_atom": -7554.497190450078,
          "enthalpy": -6433.39139764723,
          "entries_at_x": 1,
          "entropy": 3.760207254076292,
          "formula": "",
          "nsites": null,
          "phase": "ERFE2_C15",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.6666666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -6026.2334050642785,
          "energy_per_atom": -6026.2334050642785,
          "enthalpy": -4809.823709419475,
          "entries_at_x": 1,
          "entropy": 4.079858110497405,
          "formula": "",
          "nsites": null,
          "phase": "ERFE3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.75
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -5128.324878140584,
          "energy_per_atom": -5128.324878140584,
          "enthalpy": -3870.742077577531,
          "entries_at_x": 1,
          "entropy": 4.217953381060056,
          "formula": "",
          "nsites": null,
          "phase": "ER6FE23_D8A",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.7931034482758621
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -2997.001151499455,
          "energy_per_atom": -2997.001151499455,
          "enthalpy": -1667.2555667081049,
          "entries_at_x": 1,
          "entropy": 4.459988545334063,
          "formula": "",
          "nsites": null,
          "phase": "ER2FE17",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.894736842105263
        },
        {
          "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": "ErFe-10Zho",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:33:57Z",
    "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/ErFe-10Zho.tdb",
    "source_sha256": "1040d981d623df87d259303a659860caded5369ac3b846b25f0865fedbb0a14a"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "ER-FE",
  "x_element": "FE"
}