Al<sub>2</sub>O<sub>3</sub>/glass/hBN composites with high thermal conductivity and low dielectric constant for low temperature cofired ceramic applications

نویسندگان

چکیده

Al2O3/glass/hBN composites were successfully fabricated for the LTCC applications. Alignment and homogeneous distribution of platelet hBN particles during tape casting allowed high (5 wt%) loading as well facilitated densification at 800°C (density 2.65 g/cm3, apparent porosity 0.7%). XRD results proved that neither chemically reacted with other phases nor decomposed temperature, which was critical to increase thermal conductivity same time decrease dielectric constant. Dielectric constant dense decreased (or, alternatively, enhanced) increasing content from 7.3 0 wt% 6.55 5 MHz. In addition, addition strongly improved mean 1.86 W/m·K 2.43 between 75°C 250°C. Therefore, phase itself effectively optimized both properties made a promising candidate

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ژورنال

عنوان ژورنال: Journal of Asian Ceramic Societies

سال: 2021

ISSN: ['2187-0764']

DOI: https://doi.org/10.1080/21870764.2020.1864897