1. Define isomorphous system with examples. 2. Define Burgers vector. 3. Define the terms (a) susceptibility, and (b) permeability of a magnetic material. 4. Two samples A and B of a brittle material have crack length in the ratio 3:1. What will be the ratio of tensile strengths of A and B? 5. What is stress corrosion cracking (SCC)? 6. What are superalloys? Give examples. 7. Define glass transition temperature (Tg ). (AMIE Winter 2013, Material Science)
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