Exam Preparation
What is the difference between synthesis and properties - ANS ✔✔Synthesis is how materials
are made into formless shapes from naturally occuring or man made chemicals. Properties are
characteristics governing the behvaior of materials and they don't depend on the material
amount or shape
What are typical characteristics of metallic materials - ANS ✔✔Strong, ductile, stiff, shock
resistant, high electrical and thermal conductivity. Useful for structural applications
What are metals dominant bond? - ANS ✔✔Metallic
What other bonds do metals have? - ANS ✔✔Covalent and ionic
Vacant concentration ________ exponentially with temperature - ANS ✔✔Increases
What are important roles of vacancy? - ANS ✔✔- diffusion
- diffusional transformations in solids
- creep
How many atoms per cell do simple cubic structures have? - ANS ✔✔1
How many atoms per cell do body centered cubic structures have? - ANS ✔✔2
How many atoms per cell do face centered cubic structures have? - ANS ✔✔4