{
  "counts": {
    "above_hull": 0,
    "entries": 9,
    "intervals": 8,
    "vertices": 9
  },
  "elements": [
    "MG",
    "SM"
  ],
  "flags": [
    "has_intermediate_phases",
    "redundant_phase_descriptions",
    "solution_phases"
  ],
  "isotherms": [
    {
      "element_reference": {
        "MG": {
          "energy": -9740.858480086057,
          "phase": "HCP_A3"
        },
        "SM": {
          "energy": -20720.293892958576,
          "phase": "RHOMB_C19"
        }
      },
      "intervals": [
        {
          "enthalpy": {
            "intercept": 0.0,
            "slope": -46509.26002285185
          },
          "entropy": {
            "intercept": 0.0,
            "slope": -0.12064208785850782
          },
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "HCP_A3",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -46473.29058435692,
          "right": {
            "phase": "MG41SM5",
            "x": 0.10869565217391304
          },
          "slope": -46473.29058435692,
          "x_hi": 0.10869565217391304,
          "x_lo": 0.0
        },
        {
          "enthalpy": {
            "intercept": -218.0812519003639,
            "slope": -44502.912505368506
          },
          "entropy": {
            "intercept": 0.49748726291882506,
            "slope": -4.697524906711698
          },
          "intercept": -366.4070793396386,
          "kind": "two_phase",
          "left": {
            "phase": "MG41SM5",
            "x": 0.10869565217391304
          },
          "mu_a_rel": -366.4070793396386,
          "mu_b_rel": -43468.752533771876,
          "right": {
            "phase": "MG5SM",
            "x": 0.16666666666666666
          },
          "slope": -43102.34545443224,
          "x_hi": 0.16666666666666666,
          "x_lo": 0.10869565217391304
        },
        {
          "enthalpy": {
            "intercept": -1878.800001900383,
            "slope": -34538.60000536839
          },
          "entropy": {
            "intercept": -0.6518502370811773,
            "slope": 2.1985000932883163
          },
          "intercept": -1684.4508537146085,
          "kind": "two_phase",
          "left": {
            "phase": "MG5SM",
            "x": 0.16666666666666666
          },
          "mu_a_rel": -1684.4508537146085,
          "mu_b_rel": -36878.53366189703,
          "right": {
            "phase": "MG3SM_D03",
            "x": 0.25
          },
          "slope": -35194.08280818242,
          "x_hi": 0.25,
          "x_lo": 0.16666666666666666
        },
        {
          "enthalpy": {
            "intercept": -6301.7000019003835,
            "slope": -16847.000005368387
          },
          "entropy": {
            "intercept": 0.28229976291879677,
            "slope": -1.53809990671158
          },
          "intercept": -6385.8676762146415,
          "kind": "two_phase",
          "left": {
            "phase": "MG3SM_D03",
            "x": 0.25
          },
          "mu_a_rel": -6385.8676762146415,
          "mu_b_rel": -22774.283194396932,
          "right": {
            "phase": "MG2SM_C15",
            "x": 0.3333333333333333
          },
          "slope": -16388.41551818229,
          "x_hi": 0.3333333333333333,
          "x_lo": 0.25
        },
        {
          "enthalpy": {
            "intercept": -11619.44675120242,
            "slope": -893.7597574622755
          },
          "entropy": {
            "intercept": 0.7564785867664161,
            "slope": -2.960636378254438
          },
          "intercept": -11844.990841846855,
          "kind": "two_phase",
          "left": {
            "phase": "MG2SM_C15",
            "x": 0.3333333333333333
          },
          "mu_a_rel": -11844.990841846855,
          "mu_b_rel": -11856.036863132505,
          "right": {
            "phase": "B2_BCC",
            "x": 0.49999589096516933
          },
          "slope": -11.046021285650644,
          "x_hi": 0.49999589096516933,
          "x_lo": 0.3333333333333333
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                -12066.322957443585,
                -0.11650287391683005,
                -0.16492615309093084,
                0.24890905790365936
              ]
            ],
            "knots": [
              0.49999589096516933,
              0.5000010361241614
            ],
            "max_abs_error": 0.019944190957176033
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -6.486973758366018,
                -0.00039055759752842185,
                -0.0004676868030509589,
                0.0006414169754163972
              ]
            ],
            "knots": [
              0.49999589096516933,
              0.5000010361241614
            ],
            "max_abs_error": 5.681024504955445e-05
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              -10132.231731386752,
              -5.81267643978757e-05,
              -0.02548533011479058,
              0.05767058456596906
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.49999589096516933,
            0.5000010361241614
          ],
          "max_abs_error": 0.0030062165587878553,
          "phase": "B2_BCC",
          "x_hi": 0.5000010361241614,
          "x_lo": 0.49999589096516933
        },
        {
          "enthalpy": {
            "intercept": -24132.878800979357,
            "slope": 24132.996637571523
          },
          "entropy": {
            "intercept": -1.4485178397589014,
            "slope": 1.4489441486156176
          },
          "intercept": -23701.003207055262,
          "kind": "two_phase",
          "left": {
            "phase": "B2_BCC",
            "x": 0.5000010361241614
          },
          "mu_a_rel": -23701.003207055262,
          "mu_b_rel": -0.009267393466870999,
          "right": {
            "phase": "RHOMB_C19",
            "x": 0.9999962472245054
          },
          "slope": 23700.993939661796,
          "x_hi": 0.9999962472245054,
          "x_lo": 0.5000010361241614
        },
        {
          "enthalpy": {
            "entropy_form": null,
            "hermite": [
              [
                0.02727087377345861,
                -0.027278113494290334,
                -0.0006662031792426179,
                0.0006734429000743343
              ]
            ],
            "knots": [
              0.9999962472245054,
              1.0
            ],
            "max_abs_error": 9.6565944932233e-05
          },
          "entropy": {
            "entropy_form": {
              "R": 8.31446261815324,
              "kind": "ideal_mixing_entropy"
            },
            "hermite": [
              [
                -1.41900425094509e-07,
                -1.7762737657925346e-09,
                -1.3178000326544505e-05,
                1.3321677025404807e-05
              ]
            ],
            "knots": [
              0.9999962472245054,
              1.0
            ],
            "max_abs_error": 1.9102243816638085e-06
          },
          "entropy_form": {
            "RT": 2478.957029602388,
            "kind": "ideal_mixing"
          },
          "hermite": [
            [
              0.027313181385791335,
              -0.027277583323771,
              0.0032628164998274485,
              -0.003298414561847783
            ]
          ],
          "kind": "single_phase",
          "knots": [
            0.9999962472245054,
            1.0
          ],
          "max_abs_error": 0.00047296750651944393,
          "phase": "RHOMB_C19",
          "x_hi": 1.0,
          "x_lo": 0.9999962472245054
        }
      ],
      "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": -5051.444628734447,
          "energy_per_atom": -5051.444628734447,
          "enthalpy": -5055.354350309984,
          "entries_at_x": 1,
          "entropy": -0.013113270419403023,
          "formula": "",
          "nsites": null,
          "phase": "MG41SM5",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.10869565217391304
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -7550.1313217450115,
          "energy_per_atom": -7550.1313217450115,
          "enthalpy": -7635.233336128447,
          "entries_at_x": 1,
          "entropy": -0.28543355486645794,
          "formula": "",
          "nsites": null,
          "phase": "MG5SM",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.16666666666666666
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -10482.971555760214,
          "energy_per_atom": -10482.971555760214,
          "enthalpy": -10513.45000324248,
          "entries_at_x": 1,
          "entropy": -0.10222521375909821,
          "formula": "",
          "nsites": null,
          "phase": "MG3SM_D03",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.25
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -11848.672848942071,
          "energy_per_atom": -11848.672848942071,
          "enthalpy": -11917.366670356512,
          "entries_at_x": 1,
          "entropy": -0.23040020598506317,
          "formula": "",
          "nsites": null,
          "phase": "MG2SM_C15",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.3333333333333333
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -11850.513807101193,
          "energy_per_atom": -11850.513807101193,
          "enthalpy": -12066.322957443585,
          "entries_at_x": 1,
          "entropy": -0.7238274370028037,
          "formula": "",
          "nsites": null,
          "phase": "B2_BCC",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.49999589096516933
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -11850.481680051893,
          "energy_per_atom": -11850.481680051893,
          "enthalpy": -12066.355477412693,
          "entries_at_x": 1,
          "entropy": -0.7240442641650517,
          "formula": "",
          "nsites": null,
          "phase": "B2_BCC",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.5000010361241614
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.09821190271759406,
          "energy_per_atom": -0.09821190271759406,
          "enthalpy": 0.02727087377345861,
          "entries_at_x": 1,
          "entropy": 0.00042087129462231587,
          "formula": "",
          "nsites": null,
          "phase": "RHOMB_C19",
          "phase_kind": "solution",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.9999962472245054
        },
        {
          "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": "RHOMB_C19",
          "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": "MgSm-10Guo",
    "builder_version": 1,
    "engine": {
      "numpy": "2.5.1",
      "pycalphad": "0.11.2",
      "python": "3.13.15"
    },
    "fit_tol": 1.0,
    "observed_at": "2026-09-03T00:47:51Z",
    "phase_families": {
      "BCC_A2": "A2_BCC"
    },
    "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/MgSm-10Guo.tdb",
    "source_sha256": "74f15429343690e9d4a17d00f6a738e58e6be758714cfe34ac4b3d36b2374b4e"
  },
  "reference": {
    "kind": "calphad_formation_T",
    "per": "mole_atoms",
    "temperature_K": 298.15,
    "units": "J/mol-atoms"
  },
  "schema_version": 1,
  "system_id": "MG-SM",
  "x_element": "SM"
}
