{
  "counts": {
    "above_hull": 0,
    "entries": 4,
    "intervals": 3,
    "vertices": 4
  },
  "elements": [
    "CD",
    "PB"
  ],
  "flags": [
    "no_intermediate_phases",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "CD": {
          "energy": -15444.169017557906,
          "phase": "HCP_A3"
        },
        "PB": {
          "energy": -19320.120421968448,
          "phase": "FCC_A1"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                0.0,
                0.015558928786620832,
                5.6619653613294504e-05,
                -2.815967158820154e-05
              ]
            ],
            "knots": [
              0.0,
              5.1958965123233454e-05
            ],
            "max_abs_error": 4.039624888512415e-06
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.0,
                -0.004219442002735833,
                2.1453918839843024e-05,
                -1.0563630021960708e-05
              ]
            ],
            "knots": [
              0.0,
              5.1958965123233454e-05
            ],
            "max_abs_error": 1.5156129881249963e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              0.0,
              1.2735855620319323,
              -0.0063398660887592495,
              0.003121386328709397
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.0,
            5.1958965123233454e-05
          ],
          "max_abs_error": 0.00044784043882578617,
          "phase": "HCP_A3",
          "x_hi": 5.1958965123233454e-05,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": 0.013175981459357354,
            "slope": 46.409840988351554
          },
          "entropy": {
            "intercept": 0.0004758889071371623,
            "slope": 0.18034630807840718
          },
          "intercept": -0.12871029620498745,
          "kind": "two_phase",
          "left": {
            "phase": "HCP_A3",
            "x": 5.1958965123233454e-05
          },
          "mu_a_rel": -0.12871029620498745,
          "mu_b_rel": -7.489121061432572,
          "right": {
            "phase": "FCC_A1",
            "x": 0.996931171944435
          },
          "slope": -7.360410765227584,
          "x_hi": 0.996931171944435,
          "x_lo": 5.1958965123233454e-05
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                46.28059314773155,
                -46.14657312824979,
                -0.13544170747117334,
                0.0014216879894277668
              ]
            ],
            "knots": [
              0.996931171944435,
              1.0
            ],
            "max_abs_error": 0.00020395350446555938
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                0.007146968998843151,
                -0.007133716536664455,
                -2.8785726347685045e-05,
                1.55332641689895e-05
              ]
            ],
            "knots": [
              0.996931171944435,
              1.0
            ],
            "max_abs_error": 2.242591498344184e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              44.149724340723026,
              -44.01965554221554,
              -0.12685924403416493,
              -0.0032095544733223846
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.996931171944435,
            1.0
          ],
          "max_abs_error": 0.0004646752479473548,
          "phase": "FCC_A1",
          "x_hi": 1.0,
          "x_lo": 0.996931171944435
        }
      ],
      "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": -0.12909273553123057,
          "energy_per_atom": -0.12909273553123057,
          "enthalpy": 0.015587388768645922,
          "entries_at_x": 1,
          "entropy": 0.0004852595146687122,
          "formula": "",
          "nsites": null,
          "phase": "HCP_A3",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 5.1958965123233454e-05
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -7.466533226375759,
          "energy_per_atom": -7.466533226375759,
          "enthalpy": 46.28059314773155,
          "entries_at_x": 1,
          "entropy": 0.18026874517559577,
          "formula": "",
          "nsites": null,
          "phase": "FCC_A1",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.996931171944435
        },
        {
          "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": "FCC_A1",
          "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": "CdPb-95Zak-LB",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:21:33Z",
    "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/CdPb-95Zak-LB.tdb",
    "source_sha256": "38bd375c9b9bc5556ecb488fb5cc7109261f0bfc9bf1a0e8d06127b4fe76b026"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "CD-PB",
  "x_element": "PB"
}