{
  "counts": {
    "above_hull": 0,
    "entries": 4,
    "intervals": 3,
    "vertices": 4
  },
  "elements": [
    "CR",
    "RE"
  ],
  "flags": [
    "no_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "CR": {
          "energy": -7019.328360355949,
          "phase": "BCC_A2"
        },
        "RE": {
          "energy": -10890.32233633457,
          "phase": "HCP_A3"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                0.0,
                -482.9455420355528,
                439.3458927791511,
                144.15696491163465
              ]
            ],
            "knots": [
              0.0,
              0.19340955942790994
            ],
            "max_abs_error": 0.3995920913858697
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.0,
                -1.1202912804166851,
                0.4332329456910467,
                0.0006947794772861893
              ]
            ],
            "knots": [
              0.0,
              0.19340955942790994
            ],
            "max_abs_error": 0.0013282828947745462
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              0.0,
              -148.93069677930492,
              310.177490021552,
              143.9498164102846
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.0,
            0.19340955942790994
          ],
          "max_abs_error": 0.011365576708158187,
          "phase": "BCC_A2",
          "x_hi": 0.19340955942790994,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": 124.03716407668787,
            "slope": -121.39962725165411
          },
          "entropy": {
            "intercept": 4.209323197124645,
            "slope": -4.199434883265879
          },
          "intercept": -1130.972547146022,
          "kind": "two_phase",
          "left": {
            "phase": "BCC_A2",
            "x": 0.19340955942790994
          },
          "mu_a_rel": -1130.972547146022,
          "mu_b_rel": -0.31066395195625773,
          "right": {
            "phase": "HCP_A3",
            "x": 0.9998745703607497
          },
          "slope": 1130.6618831940657,
          "x_hi": 0.9998745703607497,
          "x_lo": 0.19340955942790994
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                2.6527639364850573,
                -2.652522289768355,
                -0.0022290885002891336,
                0.001987441783586341
              ]
            ],
            "knots": [
              0.9998745703607497,
              1.0
            ],
            "max_abs_error": 0.0002851128821298454
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                3.2429322394215976e-06,
                -3.4059029914194675e-06,
                -1.5572686564944127e-05,
                1.5735657316941997e-05
              ]
            ],
            "knots": [
              0.9998745703607497,
              1.0
            ],
            "max_abs_error": 2.2579760149371147e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              2.651797056239077,
              -2.651506820260091,
              0.00241390895349447,
              -0.002704144932480279
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.9998745703607497,
            1.0
          ],
          "max_abs_error": 0.00038810263234889675,
          "phase": "HCP_A3",
          "x_hi": 1.0,
          "x_lo": 0.9998745703607497
        }
      ],
      "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": -912.2917304555267,
          "energy_per_atom": -912.2917304555267,
          "enthalpy": 100.55731565523296,
          "entries_at_x": 1,
          "entropy": 3.3971123465059954,
          "formula": "",
          "nsites": null,
          "phase": "BCC_A2",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.19340955942790994
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.45248246407936676,
          "energy_per_atom": -0.45248246407936676,
          "enthalpy": 2.6527639364850573,
          "entries_at_x": 1,
          "entropy": 0.010415047461229676,
          "formula": "",
          "nsites": null,
          "phase": "HCP_A3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.9998745703607497
        },
        {
          "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": "CrRe-98Hua-oldsigma",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:29:14Z",
    "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/CrRe-98Hua-oldsigma.tdb",
    "source_sha256": "a7917c884c427729077529d158a2e445790f52aadaaa935acb52c50bfe651633"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "CR-RE",
  "x_element": "RE"
}