Dielectric Property of Laminated AlN/BN Ceramic Composites

Tao Zhang; Hai Yun Jin; Rui Zhou; Ji Feng Zhao; Zhi Hao Jin

doi:10.4028/www.scientific.net/MSF.620-622.359

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Investigation on Preparation and Performance of Micro-Powder Rubber Modified Asphalt
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Influence of Aging Time on Sigma Phase Precipitation in SAF2507 Super-Duplex Stainless Steel
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Dielectric Property of Laminated AlN/BN Ceramic Composites
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HomeMaterials Science ForumMaterials Science Forum Vols. 620-622Dielectric Property of Laminated AlN/BN Ceramic...

Dielectric Property of Laminated AlN/BN Ceramic Composites

Abstract:

The relationship between the processing technology and the dielectric property of the laminated AlN/h-BN ceramic composites has been studied. The results showed that the main polarization mechanism of laminated ceramic composites in low frequency range is space charge polarization at the interface of AlN layer and BN layer. Due to the affection of porosity, the permittivity increases and the dielectric loss decreases with increasing the hot pressing temperature. The permittivity increases and the dielectric loss decreases with increasing thickness ratio of different layer., Both permittivity and dielectric loss increase with increasing the content of AlN doping in BN layer.