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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 Type
Dr Grade
Email
ثريا عبدالقادر باعراقي
Baraca, thoraya Abdul Qadir
Investigator
Doctorate
tbaerky@kau.edu.sa
Files
File Name
Type
Description
35131.pdf
pdf
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