手法を比較

	CALPHAD	熱重量分析
分野	材料科学	材料科学
系統	Process / pipeline	Process / pipeline
提唱年	1970	1960s
提唱者	Larry Kaufman	William W. Wendlandt
種類	Computational method	Characterization method
原典	Kaufman, L., & Bernstein, H. (1970). Computer Calculation of Phase Diagrams. Academic Press.	Wendlandt, W. W. (1986). Thermal Analysis (3rd ed.). John Wiley & Sons.
別名	CALPHAD method, computational thermodynamics	TGA, thermal gravimetry, thermogravimetry
関連	3	3
概要	CALPHAD (CALculation of PHAse Diagrams) is a computational method for predicting thermodynamic equilibrium properties and phase diagrams of multicomponent alloys. Pioneered by Larry Kaufman in 1970, CALPHAD combines experimental and computational data to assess thermodynamic properties of phases and subsequently predict equilibrium conditions. It is the standard methodology in physical metallurgy and materials design for alloy development, process optimization, and understanding phase stability.	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.