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Which among the following exhibits the highest thermal conductivity?

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in Engineering Material & Metallurgy by (773k points)
Which among the following exhibits the highest thermal conductivity?

(a) Alumina

(b) Silicon carbide

(c) Silicon nitride

(d) Sialon

The question was posed to me by my school principal while I was bunking the class.

I want to ask this question from Ceramics in division Non Metallic Materials of Engineering Material & Metallurgy

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Right answer is (b) Silicon carbide

Explanation: Silicon carbide (SiC) has a high thermal conductivity of 83.6 W/m/K. It also has the highest Young’s modulus of 4.14 * 105 among the following. The thermal conductivities of alumina, silicon nitride, and sialon are 8.4, 25, and 21.3 W/m/K in that order.

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