OneNote Test 1

Question 1

What are benefits of bottom-up methods? cons?

Answer 1

1. better purity control/less contamination
2. reproductability is better

cons: limited particle size

Question 2

What are benefits of top-down methods? Cons?

Answer 2

Benefit: lower cost bc of the yield

con: size limit (technical/common ceramics)

Question 3

What are pros and cons of dry routes?

Answer 3

pros: cheaper, easy to automate, works for any composition

cons: no agglomerate control, nothing to control microstructure, not as compelx shapes, microstructure simpler

Question 4

What are pros and cons of plastic routes?

Answer 4

pros: complex shapes, quick

cons: have to remove the polymer after, costly

Question 5

What are some processing methods used to create dense (monolithic) microstructures?

Answer 5

uniaxial, isostatic

Question 6

What are advantages and disadvantages of additive manufacturing?

Answer 6

advantages
1. whatever shape
2. altering properties

disadvantages
1. bonding between layers
2. longer to form & sometimes weaker
3. sintering
4. removing additives

Question 7

What size particles do you want for porous ceramics?

Answer 7

small so they can completely surround the porogen

Question 8

Do ceramics corrode?

Answer 8

yes, just at higher T and harsher conditions