Ceramic is made from non-metallic product at high firing temperature.

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Basic constituents of feldspathic porcelain

Methods of strengthening ceramics

MCQs

1. Chemical tempering in porcelains is done to interrupt crack propagation by

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a) Transformation toughening
b) Dispersion of crystalline phase
c) Inducing residual compressive strength
d) All of the above
Answer: C

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Strengthening of porcelain occurs through

•  Development of residual compressive stresses
•  Disruption of crack propagation