Question

13)Describe point defects in ceramics and metals, and the differnece between them

Answer #1

Traditional introductory materials science texts, concerned
mostly with metals and ceramics, devote considerable space to
crystal structures and crystal defects. These topics have been
studied for polymers, but they are hardly mentioned here. Why are
they much less important in polymers?

Will the diffusion in metals and ceramics be generally slower
than in polymers?

Explain how diffusion in ceramics is different from diffusion in
metals

Why are polymers lighter than metals and ceramics? Two
reasons.

Ceramics in a factory are manufactured in lots of 200 and 3% are
defective. Assume the pieces are independent. Use the normal
approximation to the binomial with the continuity correction to
find the probability more than 10 are defective.
0.031 (Correct)
And, use the normal approximation to the binomial with the
continuity correction to find the probability there are between 4
and 8 defects, inclusive.
0.5832 (incorrect)
I try the second question but my answer is in correct.

What is the difference between bulk and surface degradation? How
do the properties of ceramics and polymers affect which mechanism
is favored?

What are the main parameters of a body's condition? Describe the
relationship between them.

The creep strength for ceramic materials is generally:
Group of answer choices
Higher than metals at lower T
Higher than metals at higher T
Canâ€™t be measured for ceramics
Lower than metals at higher T
What impact would substituting Ca2+ ions for
zirconium ions (i.e. adding an impurity of calcium in the form of
CaO) in a ZrO2 ceramic have on the material in terms of
defects?
Group of answer choices
For each Ca2+ substitution, one Schottky defect would
form...

Describe the difference between the equivalence point and the
end point of a titration.
Why we do use indicator in titration reactions?

identify the three structural joints and describe the structural
differences between each of them.

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