1. bookVolume 30 (2012): Issue 2 (June 2012)
Journal Details
License
Format
Journal
eISSN
2083-134X
ISSN
2083-1331
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
access type Open Access

Fabrication and properties of SiNO continuous fiber reinforced BN wave-transparent composites

Published Online: 18 Jul 2012
Volume & Issue: Volume 30 (2012) - Issue 2 (June 2012)
Page range: 137 - 142
Journal Details
License
Format
Journal
eISSN
2083-134X
ISSN
2083-1331
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
Abstract

SiNO continuous fiber reinforced boron nitride (BN) wave-transparent composites (SiNOf/BN) have been fabricated by a precursor infiltration pyrolysis (PIP) method using borazine as the precursor. The densification behavior, microstructures, mechanical properties, and dielectric properties of the composites have been investigated. After four PIP cycles, the density of the composites had increased from 1.1 g·cm−3 to 1.81 g·cm−3. A flexural strength of 128.9 MPa and an elastic modulus of 23.5 GPa were achieved. The obtained composites have relatively high density and the fracture faces show distinct fiber pull-out and interface de-bonding features. The dielectric properties of the SiNOf/BN composites, including the dielectric constant of 3.61 and the dielectric loss angle tangent of 5.7×10−3, are excellent for application as wave-transparent materials.

Keywords

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