1-the main advantages of ceramic math composites over polymer matrix composites is
a-lower protection cost
b- improved corrosion resistance
c- improved thermal resistance
8-materials compounds of wan ionic bonds have_______ (low/height) docility.
d-both a and b
e-both c and b
2- Give two applications of manufactured plastics
3- Thermal conductivity of ceramic decreases with (increasing/ decreasing)
4- Polymer fibers typically made by two processes________ and _______spinning
5- The phenomenon of sudden failure of ceramics when subjected to a static tensile load over time is called
6- The tensile strength of poly crystalline ceramic _________________ with decreasing grain size. (Increases, decreases or remains the same)
7-adding carbon to steel does what?
A) Increases hardness
B) Increases malleability
C) Increases ductility
D) Increases wear resistance
E) Both a and b
F) Both a and d
G) All of the above