Shapal M
Final Advanced Materials provides shapal M machinable aluminium nitride : Rods, boards or machined parts according to your drawings
Shapal M - Aluminium nitride presentation
It is an electrical insulating refractory material having very high thermal conductivity ( higher than that of copper at 200°C) and showing high resistance to oxidation and abrasion. Unlike sintered ceramics, machining with conventional tools is possible.
This ceramic is available in bars (maxi D.58x300mm), in plates (maxi 315x200x60mm) or in parts machined by ourselves according to plans.
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Properties |
Units |
Alumina silicate raw |
Alumina silicate 1100°C |
Alumina silicate 1300°C |
Macor® |
Glass ceramic (Vitro 800) |
Machinable alumina |
Machinable boron nitride |
Aluminium nitride (Shapal M™) |
Machinable Aluminium nitride |
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Physical characteristics |
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Density |
g/cm3 |
2.2 |
2.4 |
2.5 |
2.52 |
2.7 |
3.8 |
1.85 |
2.9 |
2.9 |
|
Porosity |
% |
1.5 - 2 |
0 - 0.5 |
0 - 0.5 |
0 |
0.096 |
10 |
14 |
0 |
< 0,1 |
|
Water uptake |
% |
1.5 - 2 |
0 - 0.5 |
0 - 0.5 |
0 |
0.038 |
2 - 3.5 |
/ |
0 |
0 |
|
Mechanical characteristics |
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Hardness |
Mohs: 2.5 |
Mohs: 5.5 |
Mohs: 7.5 |
Rockwell A: 48 |
Mohs: 4 |
Mohs: 5 |
Knopp: 4 kg/mm² |
Vickers: 3900 Mpa |
Vickers: 3750 Mpa |
|
|
Compressive Strength |
N/mm2 |
6 |
150 |
800 |
345 |
488 |
422 |
20 |
1200 |
1170 |
|
Flexural Strength |
N/mm2 |
12 |
50 |
80 |
94 |
108 |
267 |
50 |
300 |
300 |
|
Modulus of Elasticity |
GPa |
/ |
/ |
/ |
66.9 |
65 |
/ |
/ |
190 |
180 |
|
Thermal characteristics |
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|
Peak Temperature |
°C |
900 |
1100 |
1400 |
1000 |
800 |
1650 |
850 |
1000 |
1000 |
|
Continuous Temperature |
°C |
700 |
1100 |
1300 |
800 |
800 |
1650 |
850 |
1000 |
1000 |
|
Specific Heat at 20°C |
J/kg°K |
/ |
/ |
/ |
0.79 |
/ |
/ |
1.5 |
/ |
/ |
|
Thermal Conductivity at 100°C |
W/m°K |
1.07 |
1.7 |
2.2 |
1.46 |
1.68 |
4.61 |
90 |
90 |
90 |
|
Coefficient of Expansion 20 - 40°C |
10-6/°K |
/ |
/ |
/ |
9.3 |
/ |
/ |
/ |
4.4 |
/ |
|
20 - 600°C |
/ |
2.9 - 3.6 |
6-8 |
11.4 |
8,6 |
/ |
/ |
4.8 |
4.5 |
|
|
20 - 800°C |
/ |
/ |
/ |
12.6 |
/ |
/ |
/ |
5.1 |
/ |
|
|
20 - 1000°C |
7-12 |
/ |
4-10 |
/ |
/ |
/ |
0.57 |
/ |
/ |
|
|
Electrical characteristics |
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|
Specific Resistivity at 20°C |
Ohm.cm |
1010 |
1012 |
1012 |
1016 |
1.8x1014 |
1014 |
1014 |
1012 |
1012 |
|
Dielectric Constant at 20°C |
at 1 KHz |
/ |
/ |
6.1 |
6.03 |
6~7 |
9 (@ 100kHz) |
4 |
7.1 |
7.1 |
|
Loss Tangent |
at 1 KHz |
/ |
/ |
9x10-5 |
0.005 |
/ |
/ |
0.0012 |
0.001 |
/ |
|
Dielectric Strength at 20°C |
kV/mm |
8-10 |
6-7 |
12-17 |
40 |
> 15 |
7.87 |
2 |
40 |
40 |
|
Chemical characteristics |
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Corrosion resistance at 20°C |
B |
B |
B |
B |
B |
B |
/ |
/ |
/ |
|
|
Resistance to alkalis at 20°C |
B |
B |
B |
TB |
TB |
B |
/ |
/ |
/ |
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