摘要:
A self-heating solder flux material includes a solder flux material and a multi-compartment microcapsule. The solder flux material includes a solvent carrier, and the multi-compartment microcapsule includes a first compartment, a second compartment, and an isolating structure. The first compartment contains a first reactant, and the second compartment contains a second reactant. The isolating structure separates the first compartment from the second compartment. The isolating structure is adapted to rupture in response to a stimulus. Rupture of the isolating structure results in an exothermic reaction between the first reactant and the second reactant. The exothermic reaction generates heat to volatilize the solvent carrier
摘要:
A corrosion resistant coating for a substrate comprises a buffer layer directly on the substrate, wherein the buffer layer is primarily a non-stoichiometric oxide; and an outer layer on the buffer layer, wherein the outer layer is a composition primarily in a tetragonal phase.
摘要:
A method for installing a first machine part into a second machine part includes a) installing the first machine part into the second machine part in its intended final position, b) disposing an exothermically reactive substance i) on or in the first machine part or ii) on or in the second machine part or iii) on or in the first machine part and on or in the second machine part, and c) activating the exothermically reactive substance to cause a thermal structural change in a part of the first machine part.
摘要:
A method for manufacturing micrometer scale components comprises depositing a first metal on a substrate, depositing a second metal in a mold, and alloying the first and second metals together to form the component.
摘要:
Methods of bonding components for fabricating electronic assemblies and electronic assemblies including bonded components are provided herein. In one example, a method of bonding components for fabricating an electronic assembly comprises the steps of disposing a first layer of a first high temperature metal-containing paste adjacent to a first component. A second layer of a second high temperature metal-containing paste is disposed adjacent to a second component. A nanostructured multilayer reactive foil is disposed between the first and second layers. The nanostructured multilayer reactive foil is activated to sinter the first and second layers and bond the first and second components.
摘要:
A borehole metal member bonding system includes, a first metal member, a second metal member proximate the first metal member, and a pyrotechnic composition positioned proximate the first metal member and the second metal member configured to bond the first metal member to the second metal member subsequent undergoing an exothermic reaction while within a borehole.
摘要:
A new anchoring mechanism for the mold-crucible set to the tube, to which the cable is to be welded is described, and the inclusion and use of some bushings which are inserted between the cable and the mold.
摘要:
A method of joining at least two parts includes steps of dispersing a joining material comprising a multi-phase magnetic metal-aluminum powder at an interface between the at least two parts to be joined and applying an alternating magnetic field (AMF). The AMF has a magnetic field strength and frequency suitable for inducing magnetic hysteresis losses in the metal-aluminum powder and is applied for a period that raises temperature of the metal-aluminum powder to an exothermic transformation temperature. At the exothermic transformation temperature, the metal-aluminum powder melts and resolidifies as a metal aluminide solid having a non-magnetic configuration.
摘要:
A method of joining at least two parts includes steps of dispersing a joining material comprising a multi-phase magnetic metal-aluminum powder at an interface between the at least two parts to be joined and applying an alternating magnetic field (AMF). The AMF has a magnetic field strength and frequency suitable for inducing magnetic hysteresis losses in the metal-aluminum powder and is applied for a period that raises temperature of the metal-aluminum powder to an exothermic transformation temperature. At the exothermic transformation temperature, the metal-aluminum powder melts and resolidifies as a metal aluminide solid having a non-magnetic configuration.