Which of the Following Statements About Ceramics Is Incorrect

question 77

Multiple Choice

Which of the following statements about ceramics is incorrect?

• A)Silicon carbide has a diamond-like structure.
• B)Boron nitride can exist in both diamond-like and graphite-like forms.
• C)Silicon carbide can be prepared by direct reaction of silicon and carbon.
• D)Superconducting ceramics present manufacturing difficulties owing to their brittleness.
• E)Superconducting ceramic compounds usually incorporate cobalt in a key role.

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