A guiding member, having a body provided with a bore for mounting a mobile element is presented. The body consists of a metallic material. The bore has a surface layer treated against jamming over a diffusion depth of less than or equal to 0.6 mm. The surface layer has a hardness of greater than or equal to 500 Hv1 over a depth of between 5 and 50 ?m.

In the present method, a substrate to be processed, having an interlayer insulation film, is prepared (step 1). The interlayer insulation film is subjected to dry etching, while using a mask layer, thereby forming recesses (step 2). Residue is removed by dry ashing (step 3). A coating is formed on the entire surface by means of a gas process using a coating compound gas, with a molecular structure having at one terminal a first substitution group that reacts with and bonds with the surface of the interlayer insulation film, and at the other terminal a second substitution group that is hydrophilic (step 4). The coating is removed by wet cleaning (step 5). Wiring is formed in the recesses (step 6).

In the present method, a substrate to be processed, having an interlayer insulation film, is prepared (step 1). The interlayer insulation film is subjected to dry etching, while using a mask layer, thereby forming recesses (step 2). Residue is removed by dry ashing (step 3). A coating is formed on the entire surface by means of a gas process using a coating compound gas, with a molecular structure having at one terminal a first substitution group that reacts with and bonds with the surface of the interlayer insulation film, and at the other terminal a second substitution group that is hydrophilic (step 4). The coating is removed by wet cleaning (step 5). Wiring is formed in the recesses (step 6).

A process comprising: placing a boronizing powder composition in the interior of a metal pipe comprising a first end, a second end, an inside surface and an outside surface; heating the pipe in a vessel having an interior, to a temperature from 1400 F. to 1900 F., thereby forming spent boronizing reaction gases and a borided layer on the inside surface, wherein the vessel interior has an atmosphere that surrounds the outside surface of the metal pipe; and flowing the spent boronizing reaction gases into the atmosphere surrounding the outside surface of the pipe, thereby forming an oxygen-depleted atmosphere.

The present invention concerns a method for obtaining a finished or semi-finished zirconia-based article, the surface of the article having a metallic external appearance and non-zero surface electrical conductivity, wherein the method includes the steps of: taking at least one zirconia article, pre-shaped in its finished or semi-finished form; placing said article in a chamber in which a hydrogen and carbon/nitrogen gas mixture is heated; heating said article and the gas mixture using at least one resistive element traversed by an electric current to obtain dissociation of the hydrogen and carbon/nitrogen based gas molecules and an increase in the temperature of said article; keeping said article in the reactive atmosphere thus created to obtain diffusion of the carbon/nitrogen atoms in the external surface of said article.

The present invention concerns a method for obtaining a finished or semi-finished zirconia-based article, the surface of the article having a metallic external appearance and non-zero surface electrical conductivity, wherein the method includes the steps of: taking at least one zirconia article, pre-shaped in its finished or semi-finished form; placing said article in a chamber in which a hydrogen and carbon/nitrogen gas mixture is heated; heating said article and the gas mixture using at least one resistive element traversed by an electric current to obtain dissociation of the hydrogen and carbon/nitrogen based gas molecules and an increase in the temperature of said article; keeping said article in the reactive atmosphere thus created to obtain diffusion of the carbon/nitrogen atoms in the external surface of said article.

A multi-layer sliding bearing includes a sliding layer having a surface for contacting a component which is to be mounted. The sliding layer is made from a tin-based alloy with tin as the main alloy element and the sliding layer has on the surface, at least in sections, an oxidic subcoating in which the proportion of tin oxide(s) is at least 50% in weight.

A multi-layer sliding bearing includes a sliding layer having a surface for contacting a component which is to be mounted. The sliding layer is made from a tin-based alloy with tin as the main alloy element and the sliding layer has on the surface, at least in sections, an oxidic subcoating in which the proportion of tin oxide(s) is at least 50% in weight.

The present disclosure relates to an oxidation-resistant heat-resistant alloy and a preparing method. The oxidation-resistant heat-resistant alloy of the present disclosure, by mass percentage, includes: 2.5%-6% of Al, 24%-30% of Cr, 0.3%-0.55% of C, 30%-50% of Ni, 2%-8% of W, 0.01%-0.2% of Ti, 0.01%-0.2% of Zr, 0.01%-0.4% of Hf, 0.01%-0.2% of Y, 0.01%-0.2% of V, N<0.05%, O<0.003%, S<0.003%, and Si<0.5%, the balance being Fe and inevitable impurities; wherein merely one of Ti and V is comprised. The method for preparing the oxidation-resistant heat-resistant alloy includes: smelting with inactive element materials.fwdarw.refining.fwdarw.adding mixed rare earth.fwdarw.adding slag.fwdarw.alloying active elements.

The present disclosure relates to an oxidation-resistant heat-resistant alloy and a preparing method. The oxidation-resistant heat-resistant alloy of the present disclosure, by mass percentage, includes: 2.5%-6% of Al, 24%-30% of Cr, 0.3%-0.55% of C, 30%-50% of Ni, 2%-8% of W, 0.01%-0.2% of Ti, 0.01%-0.2% of Zr, 0.01%-0.4% of Hf, 0.01%-0.2% of Y, 0.01%-0.2% of V, N<0.05%, O<0.003%, S<0.003%, and Si<0.5%, the balance being Fe and inevitable impurities; wherein merely one of Ti and V is comprised. The method for preparing the oxidation-resistant heat-resistant alloy includes: smelting with inactive element materials.fwdarw.refining.fwdarw.adding mixed rare earth.fwdarw.adding slag.fwdarw.alloying active elements.