9. Indicate whether each of the following statements is true or false. Give reas

Question

9. Indicate whether each of the following statements is true or false. Give reasons for your answer.
a) In a ceramic fiber reinforced ceramic matrix composite, the ceramic fiber should be inherently stronger than the matrix.
b) In a ceramic fiber reinforced ceramic matrix composite, the interfacial strength between the fibers and matrix should be high.
c) An aluminum matrix composite containing about 5% SiC fibers is superior to a high strength aluminum alloy.
d) The creep resistance is higher in a ductile phase toughened ceramic matrix composite than in ceramic matrix used for compositing.
e) The fracture toughness of metastable zirconia particle reinforced composite is lower than that of the matrix the composite is made up of.

Explanation / Answer

a) True b) True c) True d) False e) False

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