CALPHAD Thermodynamic Modeling L1-329
Unclaimed Principle — open for contribution
This Principle is declared in the catalog but has no reference solver, no pinned dataset, and is not registered on-chain. There is no reward pool. Submitting a cert against this Principle today will record the cert for reproducibility but pay zero PWM.
To claim it as a Bounty #7 contribution: open a PR adding (1) a reference solver, (2) ≥1 dataset pinned to IPFS, (3) updates to the L3 manifest with dataset CIDs. After verifier-agent triple-review, the founders' 3-of-5 multisig signs PWMRegistry.register() and the Principle becomes mineable.
Forward model E
CALPHAD (CALculation of PHAse Diagrams): parameterize Gibbs energy G_phase(T, x) for each phase; minimize total G subject to mass-balance to obtain equilibrium phase fractions and compositions.
L-DAG
Well-posedness W
- Existence:
- true
- Uniqueness:
- true
- Stability:
- conditional
- κ:
- 200
Convex per phase but multi-phase minimization is non-convex; consistent globally with Gibbs phase rule.
Solvability C
- Solver class:
- Thermo-Calc / OpenCalphad Gibbs energy minimizer; parameter fit with CALTPP
- Convergence rate q:
- 2
- Complexity:
- principle-dependent