Document Details

Document Type : Article In Journal 
Document Title :
The influence of microwave frequencies at high temperatures on structural properties of h-BN
تأثير ترددات المايكرويف عند درجات حرارة عالية على الخواص التركيبية للبورن نترايد
 
Subject : Boron Nitride 
Document Language : English 
Abstract : The influence of microwave frequencies at high temperature on the structural properties of Boron Nitride (BN) powder had been investigated. Crystallite size, microstrain and the graphitization index (G.I.) were determined before and after the microwave measurements. The x-ray diffraction patterns showed a remarkable increase in both h(002) and h(004) reflections. This means that after the microwaves treatment the preferential orientation factor increased and the powder became more crystallized. This increase in the crystallinity was confirmed by measuring the graphitization index (G.I.), which was found to be decreasing from 1.5 to 1.24, and further established by the small red-shift of the 1363 cm-1 h-BN band in the FTIR spectrum. The SEM micrograph further confirmed this conclusion by showing the grains more closely packed with less porosity. 
ISSN : 114601-8383 
Journal Name : International Journal of Engineering & Technology 
Volume : 11 
Issue Number : 1 
Publishing Year : 1432 AH
2011 AD 
Article Type : Article 
Added Date : Thursday, March 3, 2011 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
Hala Al-JawhariAl-Jawhari, Hala InvestigatorDoctoratehaljawhari@kau.edu.sa
Thorai BaerakyBaeraky, Thorai ResearcherDoctoratetbaerky@kau.edu.sa

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