Abstract: An interconnector is made of ferritic chromium steel, on which a cupriferous layer is disposed. This layer prevents interdiffusion between the chromium steel and additional components with which the interconnector has direct contact. According to the state of the art, such diffusion occurs particularly if these additional components contain nickel. In addition, the interconnector may comprise a chromium-containing oxide layer as a barrier against interdiffusion. For this purpose, the interconnector steel can also be preoxidized before applying the cupriferous layer. The interconnector has a significantly longer service life than interconnectors according to the state of the art, and it has improved electrical conductivity because the electrical contact surface thereof is free of oxides and has high transverse conductivity.

Abstract: The invention relates to a ceramic material comprising at least one transition metal silicate and/or transition metal disilicate. The ceramic material can be characterized by having one or more monosilicates, one or more disilicates and mixtures consisting of monosilicates and disilicates.

Abstract: A high temperature material which consists of a chromium oxide forming iron alloy including: a) 12 to 28 wt % chromium, b) 0.01 to 0.4 wt % La, c) 0.2 to 1.0 wt % Mn, d) 0.05 to 0.4 wt % Ti, e) less than 0.2 wt % Si, f) less than 0.2 wt % Al, wherein, at temperatures of 700° C. to 950° C., the high temperature material is capable of forming a Mn Cr2O4 spinel phase. At a temperature of 700° C. to 950° on Mn, Cr2O4 the spinel phase formed protects a body, such as spark plug electrodes and other electrodes.

Abstract: In a method of producing on the surface of a component which consists of a titanium alloy or an intermetallic phase on the basis of titanium, a protective layer (according to the formula Ti5,0−xAgx+yAl3,0−yO2), a mixture of Ti powder and TiO2 powder, which has been sintered, is applied to the surfaces of the component or, if the titanium alloy includes 40-60 at % Al, a coating of silver is applied to the component and the component is then heat treated at 500 to 900° C. to form the protective layer on its surfaces.

Abstract: The invention relates to a ceramic material comprising at least one transition metal silicate and/or transition metal disilicate. The ceramic material can be characterized by having one or more monosilicates, one or more disilicates and mixtures consisting of monosilicates and disilicates.

Abstract: A high temperature material which consists of a chromium oxide forming iron alloy including:

Abstract: In a method of producing on the surface of a component which consists of a titanium alloy or an intermetallic phase on the basis of titanium, a protective layer (according to the formula Ti5,0−xAgx+yAl3,0−yO2), a mixture of Ti powder and TiO2 powder, which has been sintered, is applied to the surfaces of the component or, if the titanium alloy includes 40-60 at % Al, a coating of silver is applied to the component and the component is then heat treated at 500 to 900° C. to form the protective layer on its surfaces.

Abstract: A multiphase, high-temperature material contains an intermetallic base alloy of the Ti.sub.3 Al type, which is intended especially for use in heat engines such as internal combustion engines, gas turbines and aircraft engines. The material contains from 44 to 73 atom % titanium, from 19 to 35 atom % aluminum, from 2 to 6 atom % silicon, and from 5 to 15 atom % niobium. The desired microstructure is attained by heat treating the alloy at between 800.degree. and 1100.degree. C.

Abstract: A multi-phase, high temperature-resistant material with an intermetallic base alloy of the .gamma.-TiAl type, is intended in particular for use in heat engines, such as internal combustion engines, gas turbines and aircraft engines. The material has a content of aluminum of from 30 to 40 atom %, silicon of from 0.1 to 20 atom %, niobium of from 0.1 to 15 atom %, and a remainder of titanium.

Abstract: An alloy for coating austenitic super alloy materials for high-temperature service is provided. It comprises a nickel, chromium, aluminum alloy with at least one metal of Group IV and/or one transition metal of Group V of the periodic table as additives and yttrium, and/or hafnium included to improve adhesion of the alloy coating and of the aluminum oxide film formed thereon during heat treatment and intended high-temperature service.

Abstract: A high temperature protective coating formed by an alloy on the basis of nickel, cobalt, chromium, aluminum and also frequently of yttrium. There is improved adherence of the metallic oxide covering layer which forms on the protective coating and increased the oxidation and corrosion resistance. Silicon may be admixed to the alloy as a first addition. The amount of the silicon to be admixed to the alloy lies between 1 and 3% by weight. The oxidation and corrosion resistance can be increased by means of a further addition of zirconium in an amount of 1% by weight. The same results can be obtained by a further addition of tantalum, also in the amount of 1% by weight.

Abstract: Method of applying a protective layer to a component made of an oxide dispersion hardened superalloy in which the surface of the component is subjected to heat treatment and/or provided with a coating before the protective layer is applied. This results in improved adhesive strength of the protective layer.