{
  "counts": {
    "above_hull": 0,
    "entries": 5,
    "intervals": 4,
    "vertices": 5
  },
  "elements": [
    "FE",
    "LU"
  ],
  "flags": [
    "has_intermediate_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "FE": {
          "energy": -8133.4575154269405,
          "phase": "BCC_A2"
        },
        "LU": {
          "energy": -15194.052481304041,
          "phase": "HCP_A3"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -21688.8921027892
          },
          "entropy": {
            "intercept": 0.0,
            "slope": -0.7965703515098793
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "BCC_A2",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -21451.394652486517,
          "right": {
            "phase": "FE23LU6_D8A",
            "x": 0.20689655172413793
          },
          "slope": -21451.394652486517,
          "x_hi": 0.20689655172413793,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -415.2610727787669,
            "slope": -19681.796917691827
          },
          "entropy": {
            "intercept": -0.44881218032054304,
            "slope": 1.372688520039412
          },
          "intercept": -281.4477212161719,
          "kind": "two_phase",
          "left": {
            "phase": "FE23LU6_D8A",
            "x": 0.20689655172413793
          },
          "mu_a_rel": -281.4477212161719,
          "mu_b_rel": -20372.511721157858,
          "right": {
            "phase": "FE3LU",
            "x": 0.25
          },
          "slope": -20091.063999941685,
          "x_hi": 0.25,
          "x_lo": 0.20689655172413793
        },
        {
          "enthalpy": {
            "intercept": -3284.4764784926697,
            "slope": -8204.935294836216
          },
          "entropy": {
            "intercept": -3.6740064027876125,
            "slope": 14.27346540990769
          },
          "intercept": -2189.0714695015604,
          "kind": "two_phase",
          "left": {
            "phase": "FE3LU",
            "x": 0.25
          },
          "mu_a_rel": -2189.0714695015604,
          "mu_b_rel": -14649.64047630169,
          "right": {
            "phase": "FE2LU_C15",
            "x": 0.3333333333333333
          },
          "slope": -12460.569006800131,
          "x_hi": 0.3333333333333333,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "intercept": -9029.18236515711,
            "slope": 9029.18236515711
          },
          "entropy": {
            "intercept": 1.6257231007724258,
            "slope": -1.6257231007724255
          },
          "intercept": -9513.891707652405,
          "kind": "two_phase",
          "left": {
            "phase": "FE2LU_C15",
            "x": 0.3333333333333333
          },
          "mu_a_rel": -9513.891707652405,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "HCP_A3",
            "x": 1.0
          },
          "slope": 9513.891707652405,
          "x_hi": 1.0,
          "x_lo": 0.3333333333333333
        }
      ],
      "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": "BCC_A2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -4438.219583273072,
          "energy_per_atom": -4438.219583273072,
          "enthalpy": -4487.356986783972,
          "entries_at_x": 1,
          "entropy": -0.16480765893307847,
          "formula": "",
          "nsites": null,
          "phase": "FE23LU6_D8A",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.20689655172413793
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -5304.213721201593,
          "energy_per_atom": -5304.213721201593,
          "enthalpy": -5335.710302201724,
          "entries_at_x": 1,
          "entropy": -0.10564005031069001,
          "formula": "",
          "nsites": null,
          "phase": "FE3LU",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -6342.5944717682705,
          "energy_per_atom": -6342.5944717682705,
          "enthalpy": -6019.454910104741,
          "entries_at_x": 1,
          "entropy": 1.0838154005149505,
          "formula": "",
          "nsites": null,
          "phase": "FE2LU_C15",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.3333333333333333
        },
        {
          "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": "FeLu-14Kar",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:35:15Z",
    "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/FeLu-14Kar.tdb",
    "source_sha256": "93d8c09f432863120b933668a6b88f5284b35af70e8011c87272167d12ccbeed"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "FE-LU",
  "x_element": "LU"
}
