A solder-coated ball (10A) includes a spherical core containing Ni and P; and a solder layer (12) formed to coat the core (11). A solder-coated ball (10B) further includes a Cu plating layer (13) formed between the core (11) and the solder layer (12). A solder-coated ball (10C) further includes an Ni plating layer (14) formed between the Cu plating layer (13) and the solder layer (12).

A method of selective laser brazing is provided. The method includes providing a powder including a plurality of parent core particles and a plurality of braze particles, setting a temperature of an energy source, applying the energy source to the powder, and allowing the heated powder to solidify. The plurality of parent core particles are fused together by the plurality of braze material into a desired component.

The present invention concerns a new metal powder which is useful for coating cast iron parts. The invention also relates to a method for coating cast iron parts by using the new metal powder. Of special importance is the possibility to use the metal powder for coating the surfaces of glass moulds. The invention also relates to metal parts, such as cast iron parts, or glass moulds which are coated by the metal powder.

A structural element for repairing a damaged component comprising a shaped cavity configured to receive the damaged component and a repair material, the shaped cavity comprising a material having a first melting point and the repair material comprising a material having a second melting point that is lower than the first melting point. The shaped cavity may comprise a preform for the damaged component. The preform may comprise a mold configured to reconstruct the shape of the damaged component. The repair material may comprise a first material and a second material, the second material having a melting point that is lower than the first material. The repair material may comprise a Nickel-Boron composition. The repair material may have a melting point that is approximately 40 degrees Fahrenheit lower than the melting point of the damaged component.

A boroscope includes a working head having first and second ends. A first optical fiber extends through the boroscope to a position between the first and second ends. A second optical fiber extends through the boroscope to the second end of the working head. A laser optical fiber extends through the boroscope. At least one lens is arranged between the first end and the second end of the working head and a mirror is gimballed to the second end of the working head. The laser optical fiber directs laser light transmitted through the laser optical fiber onto the lens and then onto the mirror. A first LED is arranged at a position between the first end and the second end of the working head and a second LED is arranged at the second end of the working head and an actuator devices adjust the position of the mirror.

A solder and methods of forming an electrical interconnection are shown. Examples of solders include gallium based solders. A solder including gallium is shown that includes particles of other solders mixed with a gallium based matrix. Methods of applying a solder are shown that include swiping a solder material over a surface that includes a resist pattern. Methods of applying a solder are also shown that include applying a solder that is immersed in an acid solution that provides a fluxing function to aid in solder adhesion.

A chromium-free, distributed hardfacing disposable on a surface of a wellsite component is disclosed. The hardfacing includes a metal filler (e.g., nickel) and particles distributed about the filler. The particles include pellets made of tungsten carbide and pieces made of angular molybdenum carbide. The pieces are smaller than the pellets for distribution in the filler between the pellets whereby a uniform distribution of particles is provided about the filler.

Various embodiments of a reactant feed and return assembly, such as an anode splitter plate (ASP), are provided for facilitating reactant feed and exhaust flow in a solid oxide fuel cell (SOFC) stack system. Embodiments include a reactant feed and return assembly including at least a first portion formed of a chromium-based alloy, such as a chromium-iron alloy, having a similar coefficient of thermal expansion as other SOFC components and may therefore reduce internal stress in an SOFC stack. Methods for making an a reactant feed and return assembly comprising a chromium-based alloy are also provided.

In one aspect, methods of making freestanding metal matrix composite articles and alloy articles are described. A method of making a freestanding composite article described herein comprises disposing over a surface of the temporary substrate a layered assembly comprising a layer of infiltration metal or alloy and a hard particle layer formed of a flexible sheet comprising organic binder and the hard particles. The layered assembly is heated to infiltrate the hard particle layer with metal or alloy providing a metal matrix composite, and the metal matrix composite is separated from the temporary substrate. Further, a method of making a freestanding alloy article described herein comprises disposing over the surface of a temporary substrate a flexible sheet comprising organic binder and powder alloy and heating the sheet to provide a sintered alloy article. The sintered alloy article is then separated from the temporary substrate.

The invention relates to a paste, preferably for joining components of power electronics modules, the paste comprising a solder powder, a metal powder and a binder, wherein the binder binds solder powder and metal powder before a first heating. According to the invention, the binder is free of flux or is a flux having only low activation. In this way, a joining layer which exhibits only few included voids and good mechanical and electrical stability can be provided between a first and a second component.