Abstract: A method for producing a magnetizable metal shaped body comprising a ferromagnetic starting material that is present in powder and in particulate form, using the following steps: (a) first compaction of the starting material (S3) such that adjoining particles become bonded to each other by means of positive adhesion and/or integral bonding in sections along the peripheral surfaces thereof and while forming hollow spaces, (b) creating an electrically isolating surface coating on the peripheral surfaces of the particles in regions outside the joining sections (S4), and (c) second compaction of the particles (S5) provided with the surface coating, such that the hollow spaces are reduced in size or eliminated.

Abstract: The invention relates to a composite component (10) having a carrier (12) made of powder metal and a wear-resistant body (14) which is made of cemented carbide and is embedded at least in certain portions in the carrier (12), wherein the cemented carbide body (14) is metalized at least in certain portions. The invention also relates to a method for producing such a composite component.

Abstract: A method for producing a magnetizable metal shaped body comprising a ferromagnetic starting material that is present in powder and in particulate form, using the following steps: (a) first compaction of the starting material (S3) such that adjoining particles become bonded to each other by means of positive adhesion and/or integral bonding in sections along the peripheral surfaces thereof and while forming hollow spaces, (b) creating an electrically isolating surface coating on the peripheral surfaces of the particles in regions outside the joining sections (S4), and (c) second compaction of the particles (S5) provided with the surface coating, such that the hollow spaces are reduced in size or eliminated.

Abstract: A reactively combined silicon nitride is produced in which the starting material is pure silicon powder or a powder mixture of pure silicon and its nitride. This material is subjected to cold isostatic pressing or a slip casting or diecasting process before it is brought into a hot isostatic mold. The reaction is triggered under a nitrogen pressure of initially 0.5-2.0 MPa and at a starting temperature of 1000.degree. C. During the reaction the pressure is raised to 4.9 MPa and the temperature to at most 1420.degree. C. This raising of pressure and temperature is carried out at least partially stepwise. Obtained thereby is a product having a degree of nitriding greater than 92%. With a cycle time of less than 24 hours, the process permits molded articles to be produced which have a wall thickness of more than 10 mm, the material being uniformly nitrided.

Abstract: A component of titanium or alloys thereof is placed in an autoclave. Nitrogen gas or ammonia is pumped into the autoclave. The chemically untreated component is exposed in the autoclave for three hours to a pressure of 900 bar and a temperature of 1000.degree. C. The TiN layer thus formed in the surface- and subsurface-zone of the component has a Vickers hardness of 800 .sub.0.05 g/sq.mm. with a thickness of 20 microns. With this economical method, an increase in surface hardness from Vickers hardness .sub.0.05 =450 with prior art methods to Vickers hardness .sub.0.05 =800 is achieved.