Study on Porous Si3N4 Material with Hexagonal BN

Rong Liao; Jing Liu; Hong Sheng Wang; Chong Hai Wang; Qi Hong Wei; Bao Xin Zhu

doi:10.4028/www.scientific.net/KEM.602-603.371

Paper Titles

Homogeneous Microstructure of ZrO₂-BN Composites with In Situ Synthesized BN
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The Effect of pH of the Aging Solution on Microstructure of Silica/Zirconia Aerogel
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Microstructure of Hydrated Magnesia and MgAl₂O₄ Spinel Layer between Magnesia and Alumina
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Oxidation Behavior of Amorphous Nano-Si₃N₄ Powders
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Study on Porous Si₃N₄ Material with Hexagonal BN
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Properties and Processing of Porous Si₃N₄ Ceramics
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Preparation and Properties of β-SiAlON-cBN Composites Using Y₂O₃, B₂O₃ and Al as Additives
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Fabrication of Macroporous SiCN Ceramics from Mixed Polysilazanes
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Studies on the Pyrolysis Kinetic Behaviours of Polycarbosilan
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 602-603Study on Porous Si3N4 Material with Hexagonal BN

Study on Porous Si₃N₄ Material with Hexagonal BN

Abstract:

The influences of hexagonal BN content on the porous Si₃N₄ material was investigated. SEM micrographs showed that the columnar crystal overlapping structure of the porous Si₃N₄ material with a small BN addition was almost invariant. BN uniformly dispersed in the spaces of crystal overlapping. The experiment showed that the apparent densities of the porous Si₃N₄ material with a small BN addition marginally increased, the porosity, the strength and the dielectric constant marginally decreased, but The thermal shock resistance was greatly improved.

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Key Engineering Materials (Volumes 602-603)

Pages:

371-374

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.602-603.371

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Online since:

March 2014

Authors:

Rong Liao*, Jing Liu, Hong Sheng Wang, Chong Hai Wang, Qi Hong Wei, Bao Xin Zhu

Keywords:

Dielectric Property, Hexagonal BN, Porous Si₃N₄ Material, Thermal Shock Resistance

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