{
  "counts": {
    "above_hull": 0,
    "entries": 6,
    "intervals": 5,
    "vertices": 6
  },
  "elements": [
    "FE",
    "P"
  ],
  "flags": [
    "has_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "FE": {
          "energy": -8133.457681370648,
          "phase": "BCC_A2"
        },
        "P": {
          "energy": -24276.60348309633,
          "phase": "RED_P"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                0.0,
                -17.543200119916516,
                -0.024186260485038247,
                0.013630042177528168
              ]
            ],
            "knots": [
              0.0,
              0.00013759322041859365
            ],
            "max_abs_error": 0.0019553252330268833
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.0,
                -0.002466901671904972,
                3.0483924619307753e-05,
                -1.4861832487588541e-05
              ]
            ],
            "knots": [
              0.0,
              0.00013759322041859365
            ],
            "max_abs_error": 2.1326755775822248e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              0.0,
              -16.807693386400828,
              -0.03327504279671345,
              0.018061097682920746
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.0,
            0.00013759322041859365
          ],
          "max_abs_error": 0.002591182452166052,
          "phase": "BCC_A2",
          "x_hi": 0.00013759322041859365,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": 1.9207619100684674,
            "slope": -141536.9026834756
          },
          "entropy": {
            "intercept": 0.007595908786744097,
            "slope": 9.218559573812284
          },
          "intercept": -0.34395829469927364,
          "kind": "two_phase",
          "left": {
            "phase": "BCC_A2",
            "x": 0.00013759322041859365
          },
          "mu_a_rel": -0.34395829469927364,
          "mu_b_rel": -144285.7601787024,
          "right": {
            "phase": "M3P_D0E",
            "x": 0.25
          },
          "slope": -144285.4162204077,
          "x_hi": 0.25,
          "x_lo": 0.00013759322041859365
        },
        {
          "enthalpy": {
            "intercept": -5259.538679951984,
            "slope": -120491.06491602739
          },
          "entropy": {
            "intercept": 3.8196395391557343,
            "slope": -6.029614947663676
          },
          "intercept": -6398.364208551226,
          "kind": "two_phase",
          "left": {
            "phase": "M3P_D0E",
            "x": 0.25
          },
          "mu_a_rel": -6398.364208551226,
          "mu_b_rel": -125091.69942793284,
          "right": {
            "phase": "M2P_C22",
            "x": 0.3333333333333333
          },
          "slope": -118693.33521938161,
          "x_hi": 0.3333333333333333,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "intercept": -25156.473725576932,
            "slope": -60800.25977915254
          },
          "entropy": {
            "intercept": 6.060194540474472,
            "slope": -12.75127995161989
          },
          "intercept": -26963.320727819413,
          "kind": "two_phase",
          "left": {
            "phase": "M2P_C22",
            "x": 0.3333333333333333
          },
          "mu_a_rel": -26963.320727819413,
          "mu_b_rel": -83961.78638939645,
          "right": {
            "phase": "FEP_B31",
            "x": 0.5
          },
          "slope": -56998.465661577044,
          "x_hi": 0.5,
          "x_lo": 0.3333333333333333
        },
        {
          "enthalpy": {
            "intercept": -111113.2072303064,
            "slope": 111113.2072303064
          },
          "entropy": {
            "intercept": -0.630890870670946,
            "slope": 0.630890870670946
          },
          "intercept": -110925.10711721587,
          "kind": "two_phase",
          "left": {
            "phase": "FEP_B31",
            "x": 0.5
          },
          "mu_a_rel": -110925.10711721587,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "RED_P",
            "x": 1.0
          },
          "slope": 110925.10711721587,
          "x_hi": 1.0,
          "x_lo": 0.5
        }
      ],
      "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": -20.196653371902357,
          "energy_per_atom": -20.196653371902357,
          "enthalpy": -17.55375633822403,
          "entries_at_x": 1,
          "entropy": 0.008864320086125588,
          "formula": "",
          "nsites": null,
          "phase": "BCC_A2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.00013759322041859365
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -36071.69801339663,
          "energy_per_atom": -36071.69801339663,
          "enthalpy": -35382.30490895883,
          "entries_at_x": 1,
          "entropy": 2.3122358022398153,
          "formula": "",
          "nsites": null,
          "phase": "M3P_D0E",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -45962.80928167843,
          "energy_per_atom": -45962.80928167843,
          "enthalpy": -45423.226985294445,
          "entries_at_x": 1,
          "entropy": 1.809767889934509,
          "formula": "",
          "nsites": null,
          "phase": "M2P_C22",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.3333333333333333
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -55462.553558607935,
          "energy_per_atom": -55462.553558607935,
          "enthalpy": -55556.6036151532,
          "entries_at_x": 1,
          "entropy": -0.315445435335473,
          "formula": "",
          "nsites": null,
          "phase": "FEP_B31",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.5
        },
        {
          "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": "RED_P",
          "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": "FeP-96Shi",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:36:46Z",
    "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/FeP-96Shi.tdb",
    "source_sha256": "24a34412d29b7eb07f910edcca192f9f124a0136ef5003003e639be449b7ac2d"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "FE-P",
  "x_element": "P"
}