Specialty Applications

Over the past decade natural graphite has been refined into products such as expanded graphite, exfoliated graphite, and graphite foil. Each of these materials has a wide range of applications in sectors such as semiconductor manufacturing, high-grade electronic components, thermal management solutions in electronics, power generation management and high strength components in aerospace products. In addition, scientists and companies are just beginning to understand the development of important new materials such as Graphene, often called the Mother of All Graphites With applications in fast-growing areas such as solar cells, integrated circuits, touch screens and liquid crystal displays, the worldwide demand for natural graphite and its spinoff materials is only expected to continue increasing over the next decade. The following is a brief discussion of a few of the high-purity applications for natural graphite.


Aerospace Applications

Graphite is an excellent material for aircraft turbine engine mainshaft seals. The mainshaft in a turbine engine rotates at very high speeds and operates in an environment of changing high temperature conditions. Mainshaft bearing compartment seals are used to protect rotor support bearings from hot gases flowing through the engine and to prevent the loss of lubricant in the bearing compartments. Because graphite is light and strong, and because it can withstand extreme temperatures, it is in demand for surface tiles on space shuttles, in nuclear technology as a neutron moderator, and under extreme cold conditions such as in cryogenic applications.


High Grade Electronic Components

  • SiC-coated barrel, pancake and single wafer susceptors for ASM, Gemini and LPE and various other OEMs silicon epitaxy reactors
  • Graphite boats for liquid phase epitaxy (LPE)
  • SiC-coated graphite susceptors for various MOCVD processes
  • Single wafer susceptors for various processes, e.g. rapid therm process (RTP), low pressure chemical vapor deposition (LPCVD), etc.
  • Electrodes, ion sources (arc chambers) and shields for ion implantation
  • Electrodes (grids) for plasma etching
  • Liners (crucibles) for electron beam evaporation (EBE)
  • Brazing and glass to metal sealing jigs


Power Generation and Management

  • Graphite melting containers, casting dies and CZ growing parts for the production of solar grade silicon (CZ, Bridgeman and others)
  • Anode material for rechargeable lithium-ion batteries
  • Nozzles for high voltage switchgear

SPECIALTY APPLICATIONS

PRODUCT FEATURES PRODUCT RANGE
Benefits Characteristics Standard Graphite Selected Graphite Graphite Combination Spherical Graphite
  • High electrical conductivity
  • High thermal conductivity
  • High compatibility with binders
  • No contamination with trace elements
  • High purity
  • High crystallinity
  • Defined particle morphology
  • Defined particle size distribution
High purity, high crystallinity natural graphite powder with defined particle size distributions in the range 10 microns up to 1000 microns. Purity: >99.95 % C.



Combination of high purity graphite with expanded graphite, carbon black, carbon fibres and others so as to achieve high performance in special applications.