Document Details

Document Type : Article In Journal 
Document Title :
From Crystal to Amorphous Transformation in Hf63Pd37 System Prepared by Mechanical Alloying
المعد بالخلط المعدني اليكانيكي (Hf63Pd37) من الشكل البلوري إلى الشكل غير المحدد في مركب
 
Subject : Physics 
Document Language : English 
Abstract : The structural transformation from crystalline structure to amorphous structure of HfPd system prepared by mechanical alloying (MA) technique was investigated. X-ray diffraction technique was used to study structural changes with MA time. Differential scanning calorimetry (DSC) was used to study the stability of the resulting amorphous HfPd phase. A direct transformation from crystalline to amorphous phase was observed. The density of the crystalline peaks of both the hexagonal Hf and cubic Pd phases decayed exponentially as a function of the milling time. The time constants of the decaying process were obtained. On an atomic scale, the radial distribution function RDF(r) and the thermal behavior of the MA Hf63Pd37 (milled for 6 h) showed that it is of a single amorphous phase. 
ISSN : 1012-1319 
Journal Name : Science Journal 
Volume : 13 
Issue Number : 1 
Publishing Year : 1421 AH
2001 AD 
Number Of Pages : 10 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
علي الحجريALI AL-HAJRYResearcher  

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