Material China Glass Ceramic Inc. 46 Glass Ceramic
China Glass Ceramic Inc. 46 Series Glass/Ceramic Composite Material
The China Glass Ceramic Inc. 46 glass ceramic composite material is a structurally homogenous material which combines the wettability of electronic glasses with the strength of ceramics. China Glass Ceramic Inc. 46 replaces alumina and other glass/ceramics requiring batch furnace processing and reduces furnace time by 80%. With China Glass Ceramic Inc. 46, metallizing and brazing steps are eliminated. The 46 produces high strength seals that can withstand temperatures up to 700°C. Sealed glass-ceramic headers can be post brazed up to temperatures of 1400°F without affecting hermeticity for hermetic sealing. The 46 has variable coefficient of thermal expansion from 110 to 220 (×10-7 in/in/°C).
The benefits of China Glass Ceramic Inc. 46:
- Eliminates manufacturing steps
- Reduces sealing time
- Can match a wide range of metals
- Can be easily machined
- Have improved high temperature electrical properties
- Has improved chemical durability
| Material | China Glass Ceramic Inc. 46 |
|---|---|
| Coefficient of Expansion (× 10-7 cm/cm/°C) | 110-220 |
| Strain Point (°C) | 560 |
| Annealing Point oC | 580 |
| Softening Point (°C) | 940 |
| Working Point (°C) | 1000 |
| Density (g/cc) | 2.27 |
| Dielectric Constant (23°C/1 kHz) | 6.0 |
| Comments | Sealable Ceramic Commonly used for compression (reinforced) seals |
| Details |