cermet


Also found in: Dictionary, Medical, Acronyms, Wikipedia.

cermet

[′sər‚met]
(materials)
Any of a group of composite materials made by mixing, pressing, and sintering metal with ceramic; examples are silicon-silicon carbide and chromium-alumina carbide. Also known as ceramal; ceramet; metal ceramic.

Cermet

A group of composite materials consisting of an intimate mixture of ceramic and metallic components. Cermets can be fabricated by mixing the finely divided components in the form of powders or fibers, compacting the components under pressure, and sintering the compact to produce physical properties not found solely in either of the components. Cermets can also be fabricated by internal oxidation of dilute solutions of a base metal and a more noble metal. When heated under oxidizing conditions, the oxygen diffuses into the alloy to form a base metal oxide in a matrix of the more noble metal. See Composite material, Corrosion, Powder metallurgy, Sintering

The combination of metallic and ceramic components can result in cermets characterized by increased strength and hardness, higher temperature resistance, improved wear resistance, and better resistance to corrosion, each characteristic depending on the variables involved in composition and processing. Friction parts as well as cutting and drilling tools have been successfully made from cermets for many years. Certain nuclear reactor fuel elements, such as dispersion-type elements, are also made as cermets. See Ceramics

References in periodicals archive ?
En la Figura 10a se muestra la foto original a 5000X a partir de la cual se calcula el tamano de gano de WC del cermet.
NiO-SDC cermet anode material was synthesized by one step co-precipitation method using Sm(NO3)3, Ce(NO3)3 and Ni(NO3)2, as starting forerunners and Na2CO3 as the mineralizer.
For right setting of cermet reamer in RC tool holder is necessary to buy/use a dial indicator with low thrust ([less than or equal to] 0.
WC-Co cermet coatings sprayed by high-velocity oxygen fuel (HVOF) method have been widely used for wear-resistant applications since high-performance coatings are available [1].
The introduction of the Cermet heating element into Invensys' power regulator controller allowed the company to undertake a redesign which reduced the overall size of the controller, cut the 'mean time before failure' figure and lowered production costs.
a leading innovator in electronics, has introduced its new ultra small (3mm) Closed Cermet Trimmer Potentiometer.
Called Cermet II IS, the compact instrument provides high levels of performance for the measurement of humidity from trace levels to saturation.
The Cermet II dewpoint hygrometer is a panel mounted instrument designed for dewpoint measurement from -148 to +68 [degrees] F, with typical accuracy of [+ or -] 1.
The solid oxide is sandwiched between a cathode, made of strontiumdoped lanthanum manganite, and an anode, made of nickel-zirconia cermet.