technical ceramic solutions

Tag Archives: Silicon Carbide

Advanced Ceramics and Technical Ceramics

The American Society for Testing and Materials (ASTM) defines a ceramic as “an article having a glazed or unglazed body of crystalline or partly crystalline structure, or of glass, which body is produced from essentially inorganic, non-metallic substances and either is formed from a molten mass which solidifies on cooling, or is formed and simultaneously or subsequently matured by the action of the heat.”

The word ceramic is derived from the Greek word κεραμικός (keramikos), meaning inorganic, non-metallic materials formed by the action of heat. Until the middle of the last century the most commonly known ceramics were traditional clays, bricks, tiles, cements and glass. Many ceramic materials are hard, porous and brittle. The study and development of advanced ceramics over recent decades has involved ways to alleviate problems that rise from these characteristics. Morgan Technical Ceramics has played an important role in this development and today has a portfolio of Oxide, Nitride and Carbide ceramics which, using applications engineering, promotes their key properties enabling these materials to be used in a broad range of applications involving:

High Temperature Environments
Extreme Cold (Cryogenic) Environments
Highly Corrosive Environments
High Pressure Environments
High Vacuum Environments
High Frequency Applications
Hermetic sealing Applications

Advanced Ceramic raw materials as below

Alumina (Al2O3)
Aluminium Nitride (AlN)
Aluminium Silicate
Boron Carbide (B4C)
Boron Nitride (BN)
CVD Silicon Carbide
Fused Silica
Machineable Glass Ceramic
Magnesium Oxide (MgO)
Pyrolytic Boron Nitride (PBN)
Silicon Carbide (SiC)
Silicon Nitride (Si3N4)
Steatite
Zirconia (TZP)
Zirconia Toughened Alumina (ZTA)

CoorsTek & Ceramatec Develop Silicon Carbide Joints for Thermo-Mechanically Stable Assemblies

CoorsTek & Ceramatec Develop Silicon Carbide Joints for Thermo-Mechanically Stable Assemblies

All-new proprietary material and process exceeds performance of traditional brazes, adhesives, and bolt-together joining assemblies and rivals the strength of monolithic components

ASPE Annual Meeting, San Diego, California, October 22, 2012–CoorsTek, Inc., a large technical ceramics manufacturer, and Ceramatec, Inc. a technical ceramics research and development company and subsidiary of CoorsTek, today introduced a new silicon carbide joining technology for improved strength and thermal stability for assemblies of ceramic components – this technology enables solutions when monolithic ceramic are impossible to produce because of size or complexity.

This new joining technology enables the manufacture of multi-component ceramic arrays into reliable, high-strength systems. Testing has shown these joints retain strength and hermeticity even when exposed to high temperatures, thermal cycling, and various chemical environments. Metrology, precision optics, focal plane arrays, and wafer handling industries are among the current applications.

“Some designs are simply too large, complex, or expensive to produce a monolithic silicon carbide component,” states Merrill Wilson, Senior Engineer at Ceramatec, Inc.“This new joining technology essentially overcomes this barrier and enables manufacturing of critical-duty components,” he continues.

CoorsTek