1. Difference between ceramic and glass, with examples. What is the glass Transition temperature? What type of glass is used in spectacle lenses? (S’ 05)

2. Explain with reasons: Ceramics are very hard (S’05, 2M)3. Explain the reason for the rising popularity of pure oxide ceramics over traditional refractories.

What is Magcarb? Where is it commonly being used? (S’05)4. Discuss Dielectric constant and dielectric strength of ceramics. (S’05, 4M)5. Name two important ceramic insulators with their properties. (S’05, 2M)6. Draw the crystallographic unit of SiO4

-4 ion. What is Mullite? Explain slip casting. (S’05)7. What do you mean by glass transition temperature? How do the plots showing variation of

specific volume with temperature for amorphous glass ceramic and a crystalline solid differ? . (W’05, 5M)

8. Why are ionic ceramics used as dielectric in capacitors, and what does dielectric constant depend on? What is special in Ferro-electric ceramic, and is it necessary for iron to be present?

(W’05, 6M)9. Why are metals mostly ductile and ceramics brittle at room temperature? (S’ 06, 10 M)10. Why are ceramic brittle in general? Distinguish between glass and ceramics. (W ’06, 3+3)11. What is metallic glass? Explain the causes for difference in its mechanism of deformation

compared to that of metallic single crystals. (W’06, 2+2) 12. What is metallic glass? Give two unique properties of metallic glass explaining the causes

. (S’07,2+2)13.