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

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

机构地区：[1]Department of Physics, Bahauddin Zakariya University [2]Department of Chemistry, Bahauddin Zakariya University

出　　处：《Journal of Materials Science & Technology》2009年第2期208-210,共3页材料科学技术（英文版）

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.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.

关 键 词：ALLOYS STRUCTURE Thermal parameters X-ray diffraction （XRD） 

分 类 号：TG146.15[一般工业技术—材料科学与工程]