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Strength and Properties of Ceramics

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Questions and Answers

What happens to the strength of ceramics when they have tiny flaws?

It increases due to the flaws.

It remains the same regardless of the flaws.

It reduces drastically when loaded in tension or bending. (correct)

It varies depending on the type of flaw.

What property of ceramics remains high, even when their strength in tension is drastically reduced due to flaws?

Thermal conductivity

Stress resistance

Compressive strength (correct)

Impact resistance

What is a common method used to join metal to ceramic in manufacturing?

Screwing

Welding

Riveting

Adhesives (correct)

What is recommended for the shapes of commercial ceramic parts based on the text?

Keeping them as simple as possible Signup and view all the answers

What is the typical method used to shape cermets?

Pressing, sintering, and grinding Signup and view all the answers

What process is involved in making Silicon Carbide (SiC)?

Fusing sand and coke at 2200°C Signup and view all the answers

What distinguishes Silicon Carbide (SiC) as a material?

Brittleness Signup and view all the answers

In what field are SiC fibers like Nicalon commonly used as reinforcement?

Composite materials industry Signup and view all the answers

What process creates a glassy phase in traditional ceramics like brick and stoneware?

Firing Signup and view all the answers

Which of the following compounds is NOT commonly used in the production of technical ceramics?

Iron oxide Signup and view all the answers

What are the unique properties of alumina among technical ceramics?

High thermal conductivity and high melting point Signup and view all the answers

How are technical ceramics like alumina typically manufactured?

Synthesized by chemical reactions Signup and view all the answers