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用“变形能 E_S”讨论稀土二碳化物固溶体中四方晶系—立方晶系相变的热学。用下列方程式表示变形能“E_S”,E_S=ΔH_(hybO) ΔH_(ObS),ΔH_(hybO)=假想的变形沋离的固熔体内的转变热量,ΔH_(ObS)=观察到的热量。当假定溶固体为理想的溶体时,可由下列方程式计算ΔH_(hybO),ΔH_(hybO)=XΔH_(LaC_2)(1-X)ΔH_(GdC_2)X=LaC_2在 LaC_2—GdC_2固溶体中的克分子份数;ΔH_(LaC_2)及ΔH_(GdC_2)分别为 LaC_2及 GdC_2
DISCUSSION ON THE THERMALISM OF THE QUATERNARY - CUBIC SYSTEM TRANSITION IN RARE EARTH CARBONATE SOLID SOLUTION BY “DEFORMATION ENERGY E_S”. The deformation energy “E_S” is expressed by the following equation, E_S = ΔH_ (hybO) ΔH_ (ObS), ΔH_ (hybO) = the imaginary deformation temperature and the heat of transformation within the solid solution, ΔH Obs = observed heat amount. When the dissolved solid is assumed to be the ideal solution, the molar fraction of ΔH hybO, ΔH hybO = XΔH LaC_2 (1-X) ΔH GdC_2 X = LaC_2 in LaC_2-GdC_2 solid solution can be calculated from the following equation ΔH_ (LaC_2) and ΔH_ (GdC_2) were respectively LaC_2 and GdC_2