A method of coupling two ceramic matrix composite components comprises procuring a first ceramic matrix composite component, procuring a second ceramic matrix composite component, and applying a melt alloy between the first and second ceramic matrix components. The melt alloy comprises a homogeneous mixture of two or more materials in powder form, where the two or more materials include a braze alloy comprising silicon and a high melting point material or alloy. The first and second ceramic matrix composite components and the melt alloy are heat treated to a temperature, and the temperature is maintained for a length of time, followed by cooling, thereby coupling the first and second ceramic matrix composite components.

A method and arrangement for producing a three-dimensional material composite using an expansion body includes at least two metal bodies having surface regions resting loosely against one another. The composite is heated to a target temperature and the surface regions are pressed against one another so that an integral connection is established. At least one expansion cavity having a predefined initial volume is arranged in one of the metal bodies or in an additional expansion body resting against one of the metal bodies in such a manner that when the expansion cavity expands, the surface regions to be connected are pressed against one another. A predefined quantity of at least one substance which is gaseous at least at a target temperature is hermetically enclosed in the expansion cavity before the target temperature is reached.

A process for welding metallic sections that includes providing first and second metallic sections to be welded together, and wherein the welded rail sections will include a weld fusion zone that further includes a weld terminus at each rail section; providing thermite welding dies for use in welding the metallic sections together; covering the thermite welding dies with an oxide displacing or oxide dissolving flux added locally to the edges of the thermite welding dies that are immediately adjacent to the weld fusion zone and the metallic sections; positioning the thermite welding dies on the metallic sections in the region where the metallic sections are to be joined together; and initiating an exothermic reaction between the thermite welding dies and the metallic sections by introducing molten metal into the region where the metallic sections are to be joined together, wherein the exothermic reaction creates a weld between the metallic sections.

The disclosure relates to a method for producing load-indicating connection components. A connection element (10) and a piezoelectric ultrasonic transducer (20) are provided and interconnected. The method comprises forming a layer structure on the surface (14) of the connection element (10). The layer structure comprises, in this order, proceeding from the surface (14) of the connection element (10): a first solder layer (16); a reactive layer (30); a second solder layer (22); and the piezoelectric ultrasonic transducer (20). The reactive layer (30) is designed for an exothermic reaction by activation with heat, with electromagnetic radiation or with electric current. Subsequently, the piezoelectric ultrasonic transducer (20) is pressed toward the connection element (10) in order to produce a specified contact pressure, and the reactive layer (30) is activated. The disclosure also relates to a load-indicating connection component of this type.

Methods of securing bearing elements to bearing rings are disclosed. The methods include clamping the bearing elements in place on the bearing housing and applying heat to braze the bearing elements in place while clamped. The heat may be applied using a flame ring.