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Advanced Ceramics ZEMAT® ACL 2090 - Zero Expansion Glass-Ceramic

Category Ceramic , Glass , Glass Ceramic
Manufacturer Advanced Ceramics Limited
Trade Name ZEMAT®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Advanced Ceramics ZEMAT® ACL 2090 - Zero Expansion Glass-Ceramic.pdf
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Material Notes:
“Zero Expansion” glass-ceramic is a transparent material now in production for applications requiring ultra-low thermal expansion. The primary crystal phase is a s-eucryptite (Li2OAl2O32SiO2) solid solution and the crystal size is limited to 50-100nm to permit high transparency in the visible and near infra-red.Information provided by Advanced Ceramics Limited (ACL)
Physical Properties Metric English Comments
Density 2.53 g/cc
0.0914 lb/in³
Weibull Modulus 6.80

@Temperature 500 °C
6.80

@Temperature 932 °F
Mechanical Properties Metric English Comments
Hardness, Vickers 205
205
kg.mm<sup>2</sup>
Modulus of Elasticity 89.6 GPa
13000 ksi
Flexural Strength 98.0 MPa

@Temperature 300 °C
14200 psi

@Temperature 572 °F
Poissons Ratio 0.24
0.24
Shear Modulus 36.0 GPa
5220 ksi
Calculated
Thermal Properties Metric English Comments
CTE, linear 0.500 µm/m-°C

@Temperature 20.0 - 100 °C
0.278 µin/in-°F

@Temperature 68.0 - 212 °F
Specific Heat Capacity 0.790 J/g-°C

@Temperature 50.0 °C
0.189 BTU/lb-°F

@Temperature 122 °F
Thermal Conductivity 1.17 W/m-K

@Temperature 50.0 °C
8.12 BTU-in/hr-ft²-°F

@Temperature 122 °F
Optical Properties Metric English Comments
Refractive Index 1.54
1.54
Transmission, Visible 90 %
90 %
transparent; thickness not quantified
Electrical Properties Metric English Comments
Dielectric Constant 6.62

@Frequency 9.30e+9 Hz
6.62

@Frequency 9.30e+9 Hz
Dissipation Factor 0.072

@Frequency 9.30e+9 Hz
0.072

@Frequency 9.30e+9 Hz
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