Question: materials and environment 3) Defeots in material ( 10p ) a) What type of defect is? i) Vacancy ii) Dislocation iii) Grain boundary b) How

materials and environment

3) Defeots in material ( 10p ) a) What type of defect is? i) Vacancy ii) Dislocation iii) Grain boundary b) How do grain boundaries arise? c) With an electron microscope, and sometimes also optical microscopy, you can see cone boundaries and whether a material is isotropic or anisotropic. Explain why (please draw to support your

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