方法对比
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| 相场模型× | 热重分析× | |
|---|---|---|
| 领域 | 材料科学 | 材料科学 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1958 | 1960s |
| 提出者≠ | John W. Cahn | William W. Wendlandt |
| 类型≠ | Simulation method | Characterization method |
| 开创性文献≠ | Cahn, J. W. (1958). Free energy of a nonuniform system: Interfacial free energy. The Journal of Chemical Physics, 28(2), 258-267. DOI ↗ | Wendlandt, W. W. (1986). Thermal Analysis (3rd ed.). John Wiley & Sons. link ↗ |
| 别名≠ | phase-field method, diffuse interface method | TGA, thermal gravimetry, thermogravimetry |
| 相关 | 3 | 3 |
| 摘要≠ | Phase-Field Modeling (PFM) is a continuum computational method for simulating microstructure evolution, phase transitions, and interfacial dynamics without explicitly tracking moving boundaries. Developed from Cahn-Ginzburg-Landau theory in the 1950s, PFM represents distinct phases through continuous order parameters that vary smoothly over diffuse interfaces. This approach elegantly handles topological changes (nucleation, coalescence, pinch-off), complex interface geometries, and strongly coupled multiphysics. It is the dominant method for studying dendritic growth, spinodal decomposition, grain evolution, and reactive transport in materials science. | Thermogravimetric Analysis (TGA) is a thermal characterization technique that continuously measures mass loss or gain of a material as a function of temperature (or time at constant temperature). Developed systematically by William Wendlandt and colleagues in the 1960s, TGA identifies thermal transitions (evaporation, decomposition, oxidation, reduction) and quantifies composition of polymers, pharmaceuticals, ceramics, and other materials. The derivative signal (DTG) highlights transition temperatures. When combined with gas analysis (MS, FTIR), decomposition products are identified. |
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