Advanced Structural Ceramics
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Questions and Answers

Which type of ceramics is employed in the disposal of radioactive nuclear wastes?

  • Optical Ceramics
  • Automotive Ceramics
  • Nuclear Ceramics (correct)
  • Bio-ceramics

What is the main component in magnetic ceramics?

  • Biomedical components
  • Silicon carbide
  • Ferrites (correct)
  • Polycrystalline materials

Which of the following properties is NOT associated with glass-ceramic materials?

  • Translucency or opacity
  • Weak mechanical strength (correct)
  • High temperature stability
  • Low or negative thermal expansion

Which ceramics are typically used in the medical field for dental and bone implants?

<p>Bio-ceramics (C)</p> Signup and view all the answers

What problem does NOT typically affect ceramics?

<p>Ease of fabrication (D)</p> Signup and view all the answers

What type of ceramics are used to make components for automobiles?

<p>Automotive Ceramics (B)</p> Signup and view all the answers

Which ceramics are known for their resistance to friction and wear?

<p>Tribological Ceramics (B)</p> Signup and view all the answers

Which of the following is a fabrication advantage of glass-ceramic materials?

<p>Controlled crystallization of base glass (C)</p> Signup and view all the answers

What is a distinctive challenge when working with ceramics in applications?

<p>Use of conventional welding methods (A)</p> Signup and view all the answers

For what reason is it necessary to use ceramic composites and fabrication methods with ceramics?

<p>To make them less brittle and easier to form (C)</p> Signup and view all the answers

Study Notes

Advanced Structural Ceramics

Nuclear Ceramics

  • Used in nuclear power generation and radioactive waste disposal

Bio-ceramics

  • Used in medical fields for dental and bone implants

Tribological Ceramics

  • Resistant to friction and wear

Automotive Ceramics

  • Used to make components for automobiles

Problems with Ceramics

  • Brittle and difficult to fabricate, form, or sinter
  • Can be overcome by using ceramic composites and advanced fabrication, forming, and sintering methods

Magnetic Ceramics

  • Made of ferrites (crystalline mineral composed of iron oxide and other metals, M(FexOy))

Optical Ceramics

  • Polycrystalline materials produced through controlled crystallization of base glass
  • Glass-ceramic materials share properties with both glasses and ceramics
  • Properties include:
    • High strength
    • Toughness
    • Translucency or opacity
    • Low or negative thermal expansion
    • High temperature stability

Issues with Ceramics

  • Difficult to machine
  • Expensive
  • Require special joining methods, as normal welding methods cannot be used

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Description

This quiz covers the applications of advanced structural ceramics in various fields, including nuclear power, medicine, tribology, and automotive industries.

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