din 2 Flashcards
1
Q
ceramic made of what
A
crystalline alumina
2
Q
porcelain made of what
A
glass matrix and crystal second phase
3
Q
glass is what?
A
amorphous
4
Q
how much porcelain is needed to block out metal?
A
1.5mm
5
Q
opaque metal made of what
A
Ti O2
6
Q
explain porcelain layering
A
layer dentin, then enamel then fire in furnace
7
Q
what is feldspathic porcelains is what
A
stains / opaque. metallic oxide colorants. masks grey metal
8
Q
what inhibits crack growth?
A
compressive strengths
9
Q
smooth surface, defect elimination
A
polish
10
Q
application of a surface colorant
A
stain
11
Q
relies on melting glass in the porcelain
A
self glaze
12
Q
apply separate glass powder, may further improve strength
A
over glazing
13
Q
does staining by itself improve strength
A
no
14
Q
stain =
A
metal oxide + some glass
15
Q
overglaze is what
A
glassy powder
