Cermets


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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Cermets

 

(ceramals), heterogeneous compositions of metals or alloys with one or more ceramic phases of relatively low mutual solubility.

Cermets combine the properties of ceramics (great hardness, resistance to wear, refractoriness, heat resistance) and metals (thermal conductivity and ductility). The ceramic components include oxides (Al2O3, Cr2O3, SiO2 and ZrO2), carbides (SiC, Cr3C2, and TiC), borides (Cr3B2, TiB2, and ZrB2), suicides (MoSi), and nitrides (TiN); the metallic components include chromium, nickel, aluminum, iron, cobalt, titanium, and zirconium and the alloys based on them. The ceramic phase content varies from 15 to 85 percent (by volume). Articles are produced by the methods of powder metallurgy, that is, by compacting the powder blanks and then sintering in a reductive or neutral atmosphere. Cermets are used in the form of hard alloys in manufacturing parts for turbines and airplane engines and in producing friction parts, tools, and other articles that are subject to increased loads while operating in aggressive media and at high temperatures.

REFERENCES

Kermety. Edited by J. R. Tinklepaugh and W. B. Crandall. Moscow, 1962. (Translated from English.)
Novye materialy v tekhnike. Moscow, 1964.
Eisenkolb, F. Uspekhi poroshkovoi metallurgii. Moscow, 1969. (Translated from German.)
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
In this study, for the first time, new type of target is tested, namely, target with the cermet structure in which a metal (Sn) and a metal oxide ([In.sub.2][O.sub.3]) are mixed.
ABSTRACT: Here in this work, we prepared Nickel oxide-Samarium doped ceria (NiO-SDC) cermet anode material by one step co-precipitation technique with Sm(NO3)3 , Ce(NO3)3 and Ni(NO3)2 as starting precursors and Na2CO3 as precipiting agent.
(3) Cermet is a material of ceramic base or matrix with a mixture of metals or alloys.
The procedure employed in the present work to study the cermets of calcium silicate with Ti-55Ni and Ti-6Al-4V is illustrated as a schematic flowchart in Figure 1.
PComP cermet coatings have been engineered for high-wear equipment rebuilding applications.
[6.] Yamada, K., Wakayama, S., "AE monitoring of microdamage during flexural fracture of cermets", Proceedings EURO PM2009-Hardmetals & Cermets, 2009, pp.
The workpiece materials covered are the most commonly used grades of carbon, alloy, stainless, and tool steels and the cutting tool materials are high- speed steels, cemented carbides, cermets, ceramics, and polycrystalline cubic boron nitride.