L5 Flashcards
1
Q
Chemical Strengthening
A
tempering.
2
Q
Glazing and poli9shing
A
can get rid of flaws - whenever you grind, polish.
3
Q
Chemical strengthening
A
larger ions with glass
4
Q
Preventing stress corrosion cracking
A
all undergo. This is weakening. Some cements inhibit H20 a bit.
5
Q
When a crack opens up, water gets
A
in, reacts with glass surface, keeps crack cracking.
6
Q
Make ceramics thicker, stronger to
A
counter stress issues.
7
Q
Silica vs not-silica
A
cement differently
8
Q
More crystals =
A
more opaque
9
Q
Wear studies on zirconium:
A
wear does not equal hardness. Wear related to roughness.
10
Q
Zirconia never
A
unpolishes. Maybe something happening to joints? Teeth do eventually have wear facets.
11
Q
zirconia is milled in
A
chalk state.
12
Q
in chalk state you can
A
dye and paint
13
Q
Zirconia problem:
A
removing them.
