Morgan Technical Ceramics aluminium silicate material (known as M120F) is a composite of around half alumina and half silicon oxide which features good thermal shock resistance and easily replaces carbon fixtures in many applications.
By changing process conditions, this highly versatile material can be tailored to provide a range of hardness values to suit customer requirements, whilst maintaining its thermal and electrical properties.
Our customers benefit from this material as it is cost effective and does not dirty the workplace like carbon can.
This material is excellent for the manufacture of fixtures, firing and dicing plates, and is flexible enough to be manufactured into intricate designs specified by our customers.
We work closely with customers in the semiconductor, medical and aerospace markets to design these products to fit their applications. Our technical engineers will work with you from design through to prototype and production offering ISO 9001 quality and full trace-ability.
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Aluminium Silicate M-120F (Mac-AS970W) |
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Property |
Metric |
Imperial |
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Colour |
Tan to pink |
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Bulk density (fired) |
Mg/m3 |
2.3 |
lb/in3 |
0.082 |
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Porosity |
2 - 3 (can be made impervious to water) % nominal |
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Rockwell hardness (R15T) |
95 nominal maximum |
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Tailorable range |
50-95 |
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Compressive strength |
MPa |
275 |
lb/in2 |
40,000 |
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Tensile strength |
MPa |
17.6 |
lb/in2 |
2500 |
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Flexural strength |
MPa |
64 |
lb/in2 |
900 |
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Young’s modulus |
GPa |
55.4 |
lb/in2 |
8.0 |
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Impact resistance (Charpy D256-56) |
mm |
83.8 |
in |
3.3 |
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Thermal conductivity |
W/m.K |
1.26 @300°C |
BTU/ft.hr |
0.73 @575°F |
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Thermal expansion coefficient |
x10-6 /°C |
2.9 @24-260°C |
x10-6 /°F |
1.6 @75-500°F |
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Maximum no-load temperature |
°C |
1150 |
°F |
2100 |
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Softening point of material |
°C |
1760 |
°F |
3200 |
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Dielectric strength |
dc kV/mm |
3.9 |
V/mil |
100 |
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Dielectric constant |
1 MHz @24°C |
5.3 |
100 MHz @75°F |
5.3 |
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Dissipation factor |
1 MHz @24°C |
0.010 |
100 MHz @75°F |
0.007 |
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Loss factor |
1 MHz @24°C |
0.053 |
100 MHz @75°F |
0.036 |
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Te value |
°C |
595 |
°F |
1100 |
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Volume resistivity |
ohm.cm |
>1014 @24°C |
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