Glass Ceramic Composite Components
China Glass Ceramic Inc. 46 Series Glass Ceramic Composite Material, Ideal for Hermetic Seal
Overview
Glass ceramic composite materials offer manufacturers an opportunity to produce glass-to-metal hermetic seals using traditional sealing methods while possessing the strength and durability of ceramics.
The China Glass Ceramic Inc. 46 Series is a break-through development in glass ceramic technology. It is a structurally homogeneous material, which combines the wetting properties of electronic glasses with the strength of ceramics. The 46 replaces alumina ceramic and other glass ceramic composite materials requiring batch furnace processing and reduces furnace time by 80%. While metalizing and brazing are no longer required, 46 glass can withstand metalizing or brazing up to 700°C, if the customer so chooses, without effecting hermeticity. By carefully controlling the crystallization process during sealing, the coefficient of thermal expansion can be varied from 110 to 220 (×10-7 in/in/°C). Our engineers have developed detailed processing specifications for the 46 Series glass ceramic and can work with you to achieve the physical properties required for any application.
The Benefits of China Glass Ceramic Inc. 46
China Glass Ceramic Inc. 46 reduces production costs by eliminating manufacturing steps and reducing the amount of time for the sealing process. Because the unique properties of this glass ceramic material afford us the ability to vary the coefficient of thermal expansion, it can be used to form hermetic seals with a wide variety of metals. In addition, China Glass Ceramic Inc. 46 is easily machined to form complex geometries. Many applications where alumina or other glass ceramic materials are used involve harsh environments. The chemistry of China Glass Ceramic Inc. 46 has been developed to improve chemical durability and high temperature electrical properties.
| China Glass Ceramic Inc. 46 Properties | |
| Coefficient of Expansion 0°-300° (× 10-7 cm/cm/°C) |
110-220 |
| Strain Point (°C) | 560 |
| Anealing Point (°C) | 580 |
| Softening Point (°C) | 940 |
| Working Point (°C) | 1000 |
| Density (g/cc) | 2.27 |
| Dielectric Constant (23°C/1 kHz) |
6.0 |
| Comments | Sealable Glass-Ceramic Composite Material |
Please contact one of our application engineers today for more information about the China Glass Ceramic Inc. 46 Series glass ceramic composite.