Physics For Civil Engineering: Unit IV: New Engineering Materials
Ceramic Materials
New Engineering Materials
Most of the ceramics are compounds of metallic and non-metallic elements. The crystal structure of ceramics is more complex because at least two elements are involved in making a ceramic compound
CERAMIC MATERIALS
Most of the ceramics are compounds of
metallic and non-metallic elements. The crystal structure of ceramics is more
complex because at least two elements are involved in making a ceramic
compound. Ceramics can be used at low as well as high temperatures.
Ceramic materials are obtained by firing
them at high temperatures. Traditional ceramics are clay products like bricks,
tiles and porcelain. China ceramics are obtained by firing clay products.
A
new generation of ceramics have been developed recently which are used in
electronic, computer, communication and aerospace industries.
•
Advanced ceramics are developed for use as tools, rockets, missile applications
and wear coating on components subjected to high stresses.
• Powders of ceramic materials like SiC,
WC, Al2O3 and TiC are mixed and glued with the help of
glass powder (vitrification) and pressed in mould and then sintered.
• These ceramics possess high Young's
modulus, high eldalisys strength and high fracture toughness, and can at high
and low temperatures.
• Major applications of ceramic are in
furnaces, ovens as Innoitib insulators and crockeries. Other important are
•
in artificial limbs and teeth.
•
as super conducting materials,
•
in explosive forming,
•
as ferrites in microwave gyrators,
•
as
memory cores of computers,
•
as garnets in microwave isolators and
•
in sonar devices.
Physics For Civil Engineering: Unit IV: New Engineering Materials : Tag: : New Engineering Materials - Ceramic Materials
Physics For Civil Engineering: Unit IV: New Engineering Materials
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Physics for Civil Engineering
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