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NTB Ceramic Material Specifications
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Description |
Units |
ALUMINA 96 |
ZIRCONIA L |
MULLITE |
QUARTZ |
Content |
% |
96.0 ± 0.1 |
96 - 97 |
85 - 90 |
98 - 99 |
Density |
gm/cc |
3.75 ± 0.05 |
4.50 ± 0.10 |
1.90 ± 0.10 |
2.00 ± 0.10 |
Porosity |
--- |
Nil |
18 - 22 |
26 - 28 |
20 - 22 |
Tensile Strength |
kpsi |
30 ± 3 |
30 ± 3 |
NA |
NA |
Comprehensive Strength |
kpsi |
325 ± 10 |
300 ± 10 |
65 ± 5 |
35 ± 5 |
Traverse Strength |
kpsi |
45 ± 4 |
40 ± 4 |
NA |
NA |
Hardness Rockwell |
R 45 N |
78 ± 3 |
65 ± 3 |
NA |
NA |
Average Crystal Size |
micron |
10 ± 5 |
10 ± 5 |
10 ± 5 |
5 ± 5 |
Colour |
--- |
White / Pink |
Chrome Yellow |
White |
White |
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Description |
Units |
ALUMINA 995 |
ALUMINA 95 |
NTB ZAS |
STEATITE |
Content |
% |
99.5 ± 0.1 |
95% ± 0.1 |
45% ± 0.1 |
NA |
Density |
gm/cc |
3.90 ± 0.05 |
3.65 ± 0.05 |
2.70 ± 0.05 |
2.70 ± 0.05 |
Porosity |
--- |
Nil |
Nil |
Nil |
Nil |
Tensile Strength |
kpsi |
36 ± 3 |
25 ± 3 |
18 ± 3 |
20 ± 3 |
Comprehensive Strength |
kpsi |
375 ± 10 |
300 ± 10 |
95 ± 5 |
100 ± 5 |
Traverse Strength |
kpsi |
50 ± 4 |
48 ± 4 |
20 ± 3 |
30 ± 3 |
Hardness Rockwell |
R 45 N |
82 ± 3 |
75 ± 3 |
60 ± 3 |
60 ± 3 |
Average Crystal Size |
micron |
10 ± 5 |
15 ± 5 |
10 ± 5 |
15 ± 5 |
Colour |
--- |
White / Ivory |
White / Pink |
White / Blue |
Off-White |
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Description |
Units |
ALUMINA 98 |
ALUMINA 75 |
NTB ZTA 88 |
NTB ZY 85 |
Content |
% |
Alumina 98 |
Alumina 75 |
Zirconia 88 |
Zirconia 85 |
Density |
gm/cc |
3.75 ± 0.05 |
3.15 ± 0.05 |
4.00 ± 0.05 |
5.75 ± 0.05 |
Porosity |
--- |
< 2 % |
Nil |
Nil |
Nil |
Tensile Strength |
kpsi |
30 ± 3 |
25 ± 3 |
40 ± 3 |
28 ± 3 |
Comprehensive Strength |
kpsi |
275 ± 10 |
240 ± 10 |
300 ± 10 |
260 ± 10 |
Traverse Strength |
kpsi |
40 ± 4 |
40 ± 4 |
45 ± 5 |
90 ± 5 |
Hardness Rockwell |
R 45 N |
70 ± 3 |
70 ± 3 |
85 ± 3 |
78 ± 3 |
Fract Toughness (KIC) |
kg/mm 1.5 |
N.A. |
12.5 |
15.0 |
25.0 |
Colour |
--- |
White / Blue |
White / Blue |
Pale Yellow |
Chrome Yellow |
