Silicon carbide refractories have very low ___________________?
Correct answer: A. None of these
- A. None of these
- B. Thermal conductivity
- C. Resistance to thermal shock
- D. Refractoriness (< 1700°C)
Explanation
Silicon carbide has high refractoriness, high thermal conductivity, and excellent thermal-shock resistance, so none of the listed properties is very low. Its conductivity is notably high rather than low.
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