A graphene reinforced aluminum matrix composite with high electrical conductivity and a preparation method thereof. The method includes: obtaining aluminum coated graphene powder by plating aluminum on a graphene surface, melting aluminum block into aluminum liquid, heating a mold to be lower than an aluminum melting point, alternately pouring the aluminum liquid and the aluminum coated graphene powder into the mold for layered casting to obtain a sandwich structure; extruding the sandwich structure into a rectangular test block and then heating to 500˜600° C., performing heat preservation for a preset time and performing forging treatment, and performing longitudinal cold deformation under inert gas to obtain the graphene reinforced aluminum matrix composite. The method can solve a problem that poor wettability of graphene and aluminum matrix, the graphene is evenly dispersed in the aluminum matrix, which can improve strength of the aluminum matrix and keep its high electrical conductivity.

A terminal includes a connecting portion to be electrically connected to a mating terminal by being inserted into the mating terminal. The connecting portion has a sliding region configured to slide on the mating terminal and a contact region configured to contact the mating terminal successively from a tip side. An outermost surface in the sliding region includes a copper-tin alloy layer containing copper and tin. An outermost surface in the contact region includes a tin layer containing tin as a main component. A Vickers hardness of the copper-tin alloy layer is higher than a Vickers hardness of the tin layer.

Provided is a method for producing a composite alloy for use in an electrode for an alkaline storage battery, including a powder preparation step of preparing a hydrogen storage alloy powder containing Ti and Cr and having a BCC structure, an etching step of applying an acid to the hydrogen storage alloy powder prepared in the powder preparation step, a Pd film forming step of coating the surface of the hydrogen storage alloy powder subjected to the etching step with Pd using a substitution plating method, and a heat treatment step of heating the hydrogen storage alloy powder having a Pd film formed, at said heating being a temperature of 500° C. or less, wherein in the Pd coating forming step, the hydrogen storage alloy powder is coated with Pd under the condition that the Pd element weight ratio of the composite alloy to be produced is 0.47% or more.

The invention relates to nickel-coated hexagonal boron nitride nanosheet composite powder, its preparation and high-performance composite ceramic cutting tool material. The composite powder has a core-shell structure with BNNS as the core and Ni as the shell. The self-lubricating ceramic cutting tool material is prepared by wet ball milling mixing and vacuum hot-pressing sintering with a phase alumina as the matrix, tungsten-titanium carbide as the reinforcing phase, nickel-coated hexagonal boron nitride nanosheet composite powder as the solid lubricant and magnesium oxide and yttrium oxide as the sintering aids. The invention also provides preparation methods of the nickel-coated hexagonal boron nitride nanosheet composite powder and the self-lubricating ceramic cutting tool material.

Provided is an alloy material including a metal oxide thin layer that can be formed using a simple method at low cost and can further suppress volatilization of Cr, which causes deterioration of a fuel cell, compared with a case where conventional expensive materials are used. Disclosed is a manufacturing method for an alloy material including a coating treatment step for coating a substrate made of a Fe—Cr based alloy with Co, and an oxidation treatment step for performing oxidation treatment on the substrate in a moisture-containing atmosphere after the coating treatment step.

A catalyst solution for electroless plating is provided. The catalyst solution is printable and devoid of an amine. The catalyst solution comprises a catalytic metal salt, a solvent, and an epoxy.

A method for manufacturing a surge absorbing device is provided. The method includes providing an elongate ceramic tube having a hollow space defined therein and having open and opposite first and second end; forming a first plating layer and a second plating layer on the first end and the second end, respectively; placing a surge absorbing element within the hollow space within the ceramic tube; disposing first and second brazing rings on the first plating layer and the second plating layer, respectively; disposing first and second sealing electrodes on the first and second brazing rings respectively; and melting the first and second brazing rings in an inert gas atmosphere to attach the first and second sealing electrodes onto the first plating layer and the second plating layer, respectively.

A new method for manufacturing a ferromagnetic part for an electromagnetic contactor, the ferromagnetic part having both particularly high impact mechanical durability, good ferromagnetic properties and good corrosion resistance, while integrating a non-magnetic gap. The method includes the following successive steps: a step a) of supplying a soft ferromagnetic metal blank part; and a step b) of electroless nickel plating at least one section of the blank part in order to obtain the ferromagnetic part, the section of which is surface coated with a nickel surface layer, with the obtained ferromagnetic part including the soft ferromagnetic metal, which, for at least one electroless nickel plated section, is disposed under the nickel surface layer.

A method is provided, including the following operations: depositing a liner in a feature of a substrate; depositing a monolayer of zinc over the liner; after depositing the monolayer of zinc, performing a thermal treatment on the substrate, wherein the thermal treatment is configured to cause migration of the zinc to an interface of the liner and an oxide layer of the substrate, the migration of the zinc producing an adhesive barrier at the interface that improves adhesion between the liner and the oxide layer of the substrate; repeating the operations of depositing the monolayer of zinc and performing the thermal treatment until a predefined number of cycles is reached.

A method for metallizing through-glass vias in a glass substrate includes functionalizing a surface of the glass substrate with a silane. The glass substrate has an average thickness t and comprises a plurality of vias extending through the thickness t. The method further includes applying an electroless plating solution comprising a copper ion to deposit a copper seed layer on the functionalized surface, disposing an electrolyte within the plurality of vias, wherein the electrolyte comprises copper ions to be deposited on the copper seed layer within the plurality of vias; positioning an electrode within the electrolyte; and applying a current between the electrode and the glass substrate, thereby reducing the copper ions into copper within the plurality of vias such that each of the plurality of vias is filled with copper and the copper has a void volume fraction of less than 5%.