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
Price	EMAIL US sales@lookpolymers.com

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
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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