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REFEL - Bonded Silicon Carbide
REFEL is an engineered reaction bonded silicon carbide ceramic with an extremely fine grain structure. This enables it to outperform other silicon ceramics as a hard wearing material and provides superior performance in arduous environments.
The micro structure of REFEL gives a superb interlocking bonding strength and surface quality. When REFEL is used in mechanical seals, the seals have the lowest level of surface distortion which gives superior life. REFEL has a reputation for supreme performance and cost effectiveness.
REFEL can be formed into complex shapes. Application fields include mechanical face seals, shaft seals, centrifuge and decanter flights. Custom designed linings have been made for equipments that transfer aggressive liquids and molten metal.
REFEL is five times lighter than tungsten carbide, and is inert and strong. The thermal and electrical conductivity of REFEL is twice as high than other silicon carbides, allowing it to be electrically discharge machined.
Applications for REFEL include the processing of titanium dioxide powder and the atomisation of non ferrous molten metals (e.g. zinc).
REFEL is a specially formed, reaction bonded silicon carbide which gives superior performance in mechanical seals.
In independent tests REFEL mechanical seals have demonstrated the lowest levels of counterface wear. This is due to the fine grain structure of REFEL and the high degree of bonding between the silicon carbide grains. The mechanical seals made with REFEL have longer life, reduced leakage, and less seal failure.
The table of wear data below is taken from ``Influences of the microstructure of Ceramic Materials on their wear behaviour in Mechanical Seals`` Journal of the Society of Tribologists and lubrication Engineers Volume 50, 10, P789-799 by R Wallis
