Porous Nitride Ceramic Composites with Low-Dielectric Properties

Rong Liao; Chong Hai Wang; Jian Liu; Hong Sheng Wang; Qi Hong Wei

doi:10.4028/www.scientific.net/KEM.512-515.849

Paper Titles

Preparation and Properties of Porous Si₃N₄/SiO₂/BN Composite Ceramics
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Electric Conductive Si₃N₄/TiN Composite Ceramic Manufactured by Liquid-Qhase Sintering
p.832

Dispersion of Si₃N₄ Powders in Tert-Butyl Alcohol
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Sintering Behavior and Properties of Si₃N₄ Ceramics with Yttrium Chloride Additive
p.841

Porous Nitride Ceramic Composites with Low-Dielectric Properties
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Dielectric and Mechanical Properties of Porous Si₃N₄-BN Ceramic Composites
p.854

Preparation & Characterization of h-BN Coatings on Ti-Based Substrate Synthesized via the PDCs Route: Tribological Applications in Severe Conditions
p.858

First-Principles Investigation of Electronic Structural and Optical Properties of Rare Earth Doped β-Si₃N₄ Crystals
p.864

High Performance Porous Wave-Transmitting Silicon Nitride Ceramics by Gel-Casting Technique
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 512-515Porous Nitride Ceramic Composites with...

Porous Nitride Ceramic Composites with Low-Dielectric Properties

Abstract:

The influences of the mullite hollow balls content on selected properties of Si₃N₄-BN matrix ceramics were investigated.The experiment showed that the apparent densities and the porosity of the nitride ceramic composites decreased as the mullite hollow balls contents increased.The strength of the porous nitride ceramic composite was greatly improved, and the dielectric constant decreased with a small addition of the mullite hollow balls. SEM micrographs showed that the mullite hollow balls became one flesh with the nitride ceramic composites.Many large pores appeared in the whole materials. The properties of the nitride ceramic composites were effectively improved.

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Periodical:

Key Engineering Materials (Volumes 512-515)

Pages:

849-853

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.512-515.849

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Online since:

June 2012

Authors:

Rong Liao, Chong Hai Wang, Jian Liu, Hong Sheng Wang, Qi Hong Wei

Keywords:

Circular Closed Stomata, Dielectric Property, Mullite Hollow Balls, Porous Nitride Ceramic Composites

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