Material Elan 46 Glass Ceramic

Elan 46 Series Glass/Ceramic Composite Material

The Elan 46 glass ceramic composite material is a structurally homogenous material which combines the wettability of electronic glasses with the strength of ceramics. Elan 46 replaces alumina and other glass/ceramics requiring batch furnace processing and reduces furnace time by 80%. With Elan 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 Elan 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 Elan 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
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