Question

answer both plz

5. Circle true of false for the following statements: a) A material can be strengthened by increasing the number of grains. b) Most pure metals are good electrical conductors at relatively low temperatures due to the electron cloud c) Non-crystalline structures do not display long range order. d) Dislocations create defects in polymers e) Grain boundaries are the surfaces that separate individual grains. TF 6. Why are grain boundaries important to solid materiak:?

Answer 1

5) True electncal Cenductas a) True

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