Question 1
Sintering is
◦ a filtration process through a molecular sieve.
◦ the process of rapid cooling of a material to yield a superconducting mixture.
◦ the process of removing metals from ore by passing material through a magnetic field.
◦ the process of heating particles of a powder below the melting point so that they fuse together.
Question 2
Why are ceramics so much more brittle than metals?
◦ The localized bonding in ceramics is highly directional.
◦ The bonding in ceramics has a very high degree of pi bonding character.
◦ The bonding in ceramics has a very high degree of ionic bonding character.
◦ The bonding in ceramics is highly nondirectional.