Dielectric Properties of Boron Nitride-Aluminium Nitride Composites Prepared by Spark Plasma Sintering

Abstract:

In this study, hexagonal Boron Nitride-Aluminium Nitride composites were prepared by spark plasma sintering at 1700°C
for 4 min under the pressure of 25 MPa, varying the amount of BN from 0 to 30 wt.%. The dielectric constants and losses of the samples were measured from 100 Hz to 1 MHz at room temperature, and the results show that with the increment of BN content, the dielectric constants and losses of AlN-BN composites decrease. When the BN content is 20 wt.%, the dielectric constant and loss of the composites at 1 MHz are 6.18, 2.1 × 10-3 respectively.

• Periodical: Key Engineering Materials (Volumes 336-338)
• Pages: 796-798
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.336-338.796
• Online since: April 2007
• Authors: Bin Chen, Wei Pan
• Keywords: BN-AIN, Dielectric Property, Spark Plasma Sintering (SPS)

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