{
  "counts": {
    "above_hull": 0,
    "entries": 2,
    "intervals": 1,
    "vertices": 2
  },
  "elements": [
    "CO",
    "RE"
  ],
  "flags": [
    "no_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "CO": {
          "energy": -8956.449410046882,
          "phase": "HCP_A3"
        },
        "RE": {
          "energy": -10877.10789096639,
          "phase": "HCP_A3"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                0.0,
                -3927.2459201426263,
                -31.718536041616062,
                25.264034914279364
              ],
              [
                -3933.700421269964,
                -2348.923050667473,
                22.65228777889115,
                3.5317696272259127
              ],
              [
                -6256.4394145313145,
                -3821.6856456764176,
                111.16991600927349,
                24.200475625837953
              ],
              [
                -9942.754668572625,
                -2116.035116121942,
                72.65698499309974,
                3.3806244254124067
              ],
              [
                -11982.752175276051,
                -3267.6115226727234,
                248.0196574855454,
                23.078083761183734
              ],
              [
                -14979.265956702046,
                -1621.3879797988748,
                120.37312527674248,
                3.2003542399984326
              ],
              [
                -16477.080456984182,
                -2285.039222334135,
                378.1141812497119,
                21.574045618963055
              ],
              [
                -18362.431452449637,
                -878.4304005000622,
                165.08625686831385,
                2.934373411845968
              ],
              [
                -19072.841222669547,
                -899.0453397925103,
                498.6961560144591,
                19.20163520814458
              ],
              [
                -19453.988771239452,
                93.60890666350132,
                205.11950967043043,
                2.499549456881198
              ],
              [
                -19152.760805448637,
                852.318884518263,
                603.9355476944343,
                15.361250264241335
              ],
              [
                -17681.1451229717,
                1263.812073088525,
                237.61260464560974,
                1.8779516667987082
              ],
              [
                -16177.842493570768,
                2326.2460799193873,
                438.9247753016166,
                6.106469241437026
              ],
              [
                -13406.565169108328,
                3221.823085396129,
                459.3615807135757,
                21.133492669257976
              ],
              [
                -9704.247010329367,
                3131.0064905709446,
                670.0436102906606,
                -406.59878394485895
              ],
              [
                -6309.7956934126205,
                5578.712672048024,
                615.3082954637148,
                115.77472590088291
              ]
            ],
            "knots": [
              0.0,
              0.07812500084375,
              0.12500000075,
              0.20312500059375002,
              0.25000000050000004,
              0.32812500034375003,
              0.3750000002500001,
              0.45312500009375006,
              0.5,
              0.57812499984375,
              0.62499999975,
              0.70312499959375,
              0.7499999995000001,
              0.8124999993750001,
              0.87499999925,
              0.92187499915625,
              1.0
            ],
            "max_abs_error": 12.047371376143019
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.0,
                -1.1981694969313874,
                0.0886887702015513,
                -0.00028893157096976374
              ],
              [
                -1.1097696583008059,
                -0.6129979657662263,
                0.0315681881822375,
                -2.345340112042127e-05
              ],
              [
                -1.691222889285915,
                -0.7332466084367166,
                0.05592518298098559,
                -2.096183973632204e-05
              ],
              [
                -2.368565276581383,
                -0.6214634451593819,
                0.05587330256520018,
                4.781379311447065e-05
              ],
              [
                -2.934107605382451,
                -0.5095784474189475,
                0.056100609702994575,
                0.00012879037258173298
              ],
              [
                -3.387456652725821,
                -0.3969971890557801,
                0.056659255153764965,
                0.0002307714083591983
              ],
              [
                -3.7275638152194777,
                -0.21224615289018492,
                0.03246267102270872,
                0.00010869305574212618
              ],
              [
                -3.907238604031212,
                -0.24500509891036895,
                0.09164157346857926,
                0.0011767419904692433
              ],
              [
                -4.059425387482533,
                -0.04657247906484763,
                0.06156444430978246,
                0.0008768494436815072
              ],
              [
                -4.043556572793916,
                0.07915385498798777,
                0.06524924533361978,
                0.0014198647819014532
              ],
              [
                -3.897733607690407,
                0.21384528063834551,
                0.07123583155946278,
                0.0025303052226739453
              ],
              [
                -3.610122190269924,
                0.36374083731544427,
                0.08194177796335744,
                0.005391400844150129
              ],
              [
                -3.1590481741469736,
                0.543219856752243,
                0.10451401313412845,
                0.015906309054582124
              ],
              [
                -2.495407995206019,
                0.7964506372588317,
                0.15806676008207887,
                0.09489716222895872
              ],
              [
                -1.4459934356361503,
                0.960123927228404,
                1.6270001588932508,
                -1.385695276797272
              ],
              [
                -0.2445646263117669,
                0.5562133716327292,
                -0.5705406539833718,
                0.2588919086624095
              ]
            ],
            "knots": [
              0.0,
              0.07812500084375,
              0.12500000075,
              0.18750000062500002,
              0.25000000050000004,
              0.31250000037500003,
              0.3750000002500001,
              0.42187500015625007,
              0.5,
              0.562499999875,
              0.62499999975,
              0.687499999625,
              0.7499999995000001,
              0.8124999993750001,
              0.87499999925,
              0.92187499915625,
              1.0
            ],
            "max_abs_error": 0.041057637831030724
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              0.0,
              -3570.0116846325486,
              -58.16109287718518,
              25.350179862155073
            ],
            [
              -3602.822597647578,
              -2166.157707174267,
              13.240232472339358,
              3.538762258783663
            ],
            [
              -5752.201310090723,
              -3548.4138002946465,
              85.12007903963331,
              24.208779100742504
            ],
            [
              -9191.286252244989,
              -1983.315877516002,
              63.27882482709083,
              3.375312202632813
            ],
            [
              -11107.947992731275,
              -3077.69800505027,
              221.89689639380686,
              22.98649590383775
            ],
            [
              -13940.762605483897,
              -1538.950525522887,
              110.8283291564419,
              3.177496373840995
            ],
            [
              -15365.707305476499,
              -2179.570571527138,
              351.2914990369211,
              21.31999815478389
            ],
            [
              -17172.666379811926,
              -847.7906803195535,
              155.05471856345378,
              2.8787981763993002
            ],
            [
              -17862.523543391628,
              -881.6883590010092,
              470.08567387463705,
              18.594382956005532
            ],
            [
              -18255.531845561993,
              68.6061381445543,
              193.91547875808095,
              2.358698343614435
            ],
            [
              -17990.651530315747,
              772.6214214903938,
              570.995293278402,
              13.555368418403077
            ],
            [
              -16633.47944712855,
              1173.263863955389,
              222.92279824584307,
              1.320504478470184
            ],
            [
              -15235.972280448852,
              2164.2850796286984,
              407.763922285671,
              1.3640031968238873
            ],
            [
              -12662.559275337655,
              2984.3613278974303,
              412.23397619507523,
              -7.160096249303024
            ],
            [
              -9273.124067494451,
              3792.9940555570392,
              290.9377840264915,
              66.78420237183673
            ],
            [
              -5122.4080255390845,
              4579.118152121443,
              529.4149956453348,
              13.874877772307627
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.0,
            0.07812500084375,
            0.12500000075,
            0.20312500059375002,
            0.25000000050000004,
            0.32812500034375003,
            0.3750000002500001,
            0.45312500009375006,
            0.5,
            0.57812499984375,
            0.62499999975,
            0.70312499959375,
            0.7499999995000001,
            0.8124999993750001,
            0.87499999925,
            0.937499999125,
            1.0
          ],
          "max_abs_error": 2.864760081789427,
          "phase": "HCP_A3",
          "x_hi": 1.0,
          "x_lo": 0.0
        }
      ],
      "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": 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": "CoRe-18Guo",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:25:46Z",
    "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/CoRe-18Guo.tdb",
    "source_sha256": "bcd125e1e2f5a7143329564b7f699f356730c7ddb970725a4295f73de790d071"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "CO-RE",
  "x_element": "RE"
}