Thermal expansion and Debye temperatures of KCl-KBr mixed crystals by an X-ray method

摘要: The precision lattice parameters and the coefficients of thermal expansion KCl, KBr, their solid solutions have been determined as a function temperature by an X-ray method using high-temperature powder camera. From diffractograms obtained at room Debye-Waller factors, Debye temperatures root mean square amplitudes vibration these mixed crystals evaluated. A linear relationship is between parameter composition solution in accordance with Vegard's law. Both parameters, coefficient amplitude vibration, vary non-linearly increasing mole percentage deviation from linearity being maximum around equimolar concentration. dependence discussed relation to number physical properties available literature.