Document Details

Document Type : Article In Journal 
Document Title :
Determination of microwave electrical characteristies of boron nitride at high temperature
تحديد الميكروويف الكهربائية على صفات من نيتريد البورون في درجة حرارة عالية
 
Subject : Determination of microwave electrical characteristies of boron nitride at high temperature 
Document Language : English 
Abstract : The microwave electrical characteristics of a powder Boron Nitride, BN, are determined at high temperature in term of the complex permittivity. The real and the imaginary parts of the complex permittivity are measured using the shift on frequency of the full computerized cavity perturbation technique working in microwave frequency ranges, 615 MHz, 1412 MHz, 2214 MHz, and 3017 MHz, and at temperature from 25 °C to 2000 °C in step of 50 °C. The temperature and frequency-dependent electrical conductivity, σ, of BN is calculated using the complex permittivity imaginary part, ϵ″ measured in the microwave frequency and the temperature ranges of the above technique. The frequency exponent n, and the activation energy, EA, is determined using the calculated electrical conductivity, σ, in the same microwave frequency and the temperature ranges. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) 
ISSN : 1319-1047 
Journal Name : Engineering Sciences Journal 
Volume : 25 
Issue Number : 1 
Publishing Year : 1425 AH
2005 AD 
Article Type : Article 
Added Date : Wednesday, March 6, 2013 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
ثريا عبدالقادر باعراقيBaraca, thoraya Abdul QadirInvestigatorDoctoratetbaerky@kau.edu.sa

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