{
  "counts": {
    "above_hull": 0,
    "entries": 5,
    "intervals": 4,
    "vertices": 5
  },
  "elements": [
    "SN",
    "ZR"
  ],
  "flags": [
    "has_intermediate_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "SN": {
          "energy": -15259.304843129104,
          "phase": "BCT_A5"
        },
        "ZR": {
          "energy": -11681.784080569292,
          "phase": "HCP_A3"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -202411.99928892253
          },
          "entropy": {
            "intercept": 0.0,
            "slope": 3.4079938870945625e-08
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "BCT_A5",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -202411.99929908346,
          "right": {
            "phase": "SN2ZR_C54",
            "x": 0.3333333333333333
          },
          "slope": -202411.99929908346,
          "x_hi": 0.3333333333333333,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -47117.99979727586,
            "slope": -61057.99989709495
          },
          "entropy": {
            "intercept": -1.8498571308396001,
            "slope": 5.54957142659874
          },
          "intercept": -46566.464893716024,
          "kind": "two_phase",
          "left": {
            "phase": "SN2ZR_C54",
            "x": 0.3333333333333333
          },
          "mu_a_rel": -46566.464893716024,
          "mu_b_rel": -109279.06951165138,
          "right": {
            "phase": "SN3ZR5_D88",
            "x": 0.625
          },
          "slope": -62712.604617935365,
          "x_hi": 0.625,
          "x_lo": 0.3333333333333333
        },
        {
          "enthalpy": {
            "intercept": -177770.85694013297,
            "slope": 147986.57153147642
          },
          "entropy": {
            "intercept": 28.238000012017586,
            "slope": -42.59100000197276
          },
          "intercept": -186190.016643716,
          "kind": "two_phase",
          "left": {
            "phase": "SN3ZR5_D88",
            "x": 0.625
          },
          "mu_a_rel": -186190.016643716,
          "mu_b_rel": -25504.938461651414,
          "right": {
            "phase": "SNZR4_A15",
            "x": 0.8
          },
          "slope": 160685.07818206458,
          "x_hi": 0.8,
          "x_lo": 0.625
        },
        {
          "enthalpy": {
            "intercept": -296907.99857475917,
            "slope": 296907.99857475917
          },
          "entropy": {
            "intercept": -29.173999947803118,
            "slope": 29.173999947803118
          },
          "intercept": -288209.7704903217,
          "kind": "two_phase",
          "left": {
            "phase": "SNZR4_A15",
            "x": 0.8
          },
          "mu_a_rel": -288209.7704903217,
          "mu_b_rel": 0.0,
          "right": {
            "phase": "HCP_A3",
            "x": 1.0
          },
          "slope": 288209.7704903217,
          "x_hi": 1.0,
          "x_lo": 0.8
        }
      ],
      "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": "BCT_A5",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -67470.66643302781,
          "energy_per_atom": -67470.66643302781,
          "enthalpy": -67470.66642964084,
          "entries_at_x": 1,
          "entropy": 1.1359979623648542e-08,
          "formula": "",
          "nsites": null,
          "phase": "SN2ZR_C54",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.3333333333333333
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -85761.84277992563,
          "energy_per_atom": -85761.84277992563,
          "enthalpy": -85279.2497329602,
          "entries_at_x": 1,
          "entropy": 1.618625010784612,
          "formula": "",
          "nsites": null,
          "phase": "SN3ZR5_D88",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.625
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -57641.95409806432,
          "energy_per_atom": -57641.95409806432,
          "enthalpy": -59381.59971495182,
          "entries_at_x": 1,
          "entropy": -5.834799989560622,
          "formula": "",
          "nsites": null,
          "phase": "SNZR4_A15",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.8
        },
        {
          "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": "SnZr-98Sub-LB",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T01:02:22Z",
    "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/SnZr-98Sub-LB.tdb",
    "source_sha256": "36c8c635a52078e78023f8d2eaade2c6ff049ad1d1bc914c8bb000662a59cf09"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "SN-ZR",
  "x_element": "ZR"
}
