Structure and Thermal Parameters of Ni_(20)Pd_(80) Alloy

作     者：S. Ahmad A.B. Ziya A. Aziz Z.I. Zafar 

作者机构：Department of Physics Bahauddin Zakariya University Department of Chemistry Bahauddin Zakariya University 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2009年第25卷第2期

页      面：208-210页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Alloys Structure Thermal parameters X-ray diffraction (XRD) 

摘      要：The structure and thermal parameters of Ni20Pd80 alloy were studied by X-ray diffraction（XRD）. The diffraction experiments performed in the temperature range of 308-1100 K revealed that the alloy formed a face centered cubic （fcc） Al-type structure. The temperature dependence of the lattice parameters was investigated by using the Bragg line displacement method showing that the lattice parameter increases with the increase of temperature. The mean linear thermal expansion （MLTE（%））, coefficient of thermal expansion （CTE, α）, the characteristic Debye temperature （（θD） and mean square amplitudes of vibration were determined from XRD data. The value of Debye temperature was found to be 253 K. It was found that temperature factor was independent of the static displacements.