High temperature materials

In addition to providing our expertise in the form of tools, CEVP provides a comprehensive range of advanced materials for vacuum science, thin-film deposition, and high temperature applications - as overviewed below.  (We also offer off-the-shelf parts for common requirements, and a complete design and manufacturing/fabrication service for custom requirements.)

Ceramic materials
Dense ready-to-machine types (for rapid turnaround), or fired ceramics that can be machined by (e.g.) diamond grinding (may require tooling)

High density graphites
With properties such as:

• high strength/expansion, for supports, fixings etc
• high strength/resistivity, for heaters
• with coatings to reduce out-gassing, particle count and improve oxidation resistance

Carbon fiber composites (CFCs)
For even greater strength - for supports, fixings, heaters, etc. CFC's low thermal conductivity offers exceptional performance as lightweight heat shielding. Can be pyrolytic graphite coated to eliminate particles and reduce out-gassing.

Silicon carbide (SiC) converted graphite
Easily machined, and fabricated into forms such as boats, dummy wafers and wafer carriers. Uncoated, is a good conductor and makes excellent heater elements in oxygen environments up to 1500C.

More information

• Carbon and graphite specifications
• Carbon fibre composite (CFC) specifications
• High strength/expansion graphite
• High density graphite
• Solid pyrolitic graphite
• Low friction oxidation-resistant graphite and ceramic
• Coatings for high density graphite machined components and assemblies
• Dalfratex™ ceramic cloth and fibers for vacuum and thin-film processes
• Aerospace components: high-temperature seals & bearings