Which one of the following materials has the highest hardness:
A)aluminum oxide
B)cubic boron nitride
C)high-speed steel
D)titanium carbide
E)tungsten carbide

Name: Which one of the following materials has the highest hardness: A)aluminum oxide B)cubic boron nitride C)high-speed steel D)titanium carbide E)tungsten carbide
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Question

Quizplus · Accepted Answer

Cubic boron nitride (CBN) is second only to diamond in hardness, making it the hardest material among the options listed.

Which One of the Following Materials Has the Highest Hardness