B22F2007/042

APPARATUS, COMPOSITIONS, AND METHODS FOR STAINLESS-COATED STEEL REINFORCEMENT BAR
20230012077 · 2023-01-12 ·

In some embodiments, a coating applied to steel reinforcement bar (e.g., steel rebar) that could considerably extend the lifetime of concrete structures by reducing steel rebar corrosion is disclosed. The coating includes a thin, passivating steel (e.g., stainless steel) layer that is applied to the outside of conventional steel rebar. The coating can be applied in-line through metal cold spray manufacturing, which is a high throughput coating technique that can be integrated into existing steel manufacturing plants. Furthermore, a novel, high performance ferritic steel with tailored resistance to corrosion from chlorides is described. The new ferritic steel is distinct from other commercial and experimental steels, and is better suited for coating low-cost steel structures like rebar. Multiple alloying elements including Cr, Al, and Si will each form protective oxides independently, increasing the total amount of protection and extending it over much wider ranges of pH and electrical potential.

METHOD OF FABRICATING A HOUSING FOR AN IMPLANTABLE MEDICAL DEVICE HAVING INTEGRATED FEATURES

One aspect is a method of fabricating a housing for an implantable medical device, including forming a first housing portion of metal using an additive manufacturing process such that features are integrated into the first portion. A second housing portion of metal is also formed. The first and second housing portions are joining thereby sealing an internal space of the housing within first and second portions and fully containing the features such that they are hermetically sealed relative to an external space outside the housing.

BONDING SHEET AND BONDED STRUCTURE
20230005871 · 2023-01-05 ·

A bonding sheet includes a copper foil and sinterable bonding films formed on both faces of the copper foil. The bonding films each contain copper particles and a solid reducing agent. The bonding sheet is used to bond to a target object to be bonded having at least one metal selected from gold, silver, copper, and nickel on a surface thereof. A bonded structure includes: a bonded object having at least one metal selected from gold, silver, copper, and nickel on a surface thereof; a copper foil; and a bonding layer including a sintered structure of copper particles; and the bonded object and the copper foil are electrically connected to each other via the bonding layer.

Methods of preparing articles by electrodeposition and additive manufacturing processes

Articles prepared by additive manufacturing of preforms that are coated by electrodeposition of nanolaminate materials, and methods of their production are described.

Bonding structure and method of manufacturing bonding structure
11702725 · 2023-07-18 · ·

A bonding structure includes: a plurality of carbon nanotubes; a first bonded member, and a first metal sintered compact bonding first end portions of the plurality of carbon nanotubes and the first bonded member, wherein the first metal sintered compact enters spaces between the first end portions of the plurality of carbon nanotubes, and bonds to the plurality of carbon nanotubes while covering side faces and end faces of the first end portions of the plurality of carbon nanotubes.

METHOD FOR PRODUCING A COMPONENT OF AN ELECTRIC MOTOR, ELECTRIC MOTOR COMPONENT AND ELECTRIC MOTOR

A component, in particular a stator or a rotor, of an electric motor, in which a layer structure is generated is produced using additive manufacturing, by: forming, via alternate additive production, a layer assembly having first layers and second layers each first layer including a filament containing plastic and metal, and each second layer including a filament containing plastic and ceramic; heating the layer assembly a first temperature, at which the plastic is removed from the layers; further heating the layer assembly (2) to a second temperature, whereby the metal of the layer is sintered and an electrically insulating ceramic layer is obtained from the layer.

SUPERCONDUCTING WIRE, METHOD FOR MANUFACTURING SUPERCONDUCTING WIRE, AND MRI DEVICE
20230008754 · 2023-01-12 ·

A superconducting wire comprises a MgB.sub.2 filament, a base material, a high-thermal expansion metal, and a stabilizing material. The high-thermal expansion metal is a metal (for example, stainless steel) having a higher thermal expansion coefficient at room temperature than the MgB.sub.2 and the base material (for example, iron or niobium). The manufacturing method includes a step of packing a mixed powder in a first metal pipe, a step of performing wire-drawing on the first metal pipe formed of the metal to be the base material, a step of producing a composite wire by accommodating the first metal pipe in a second metal pipe formed of the high-thermal expansion metal and the stabilizing material, a step of performing wire-drawing on the composite wire, and a step of performing heat treatment.

Solution-based deposition method for preparing semiconducting thin films via dispersed particle self-assembly at a liquid-liquid interface

A method for preparing a semiconducting thin film and device for carrying out the method, wherein the method includes: (1) providing a liquid-liquid interface; (2) providing at least one layered semiconductor material or its precursor(s) in the form of particles in a solvent in the form of a dispersion; (3) injecting the dispersion at the liquid-liquid interface, in order to obtain an assembly of semiconductor/semiconductor precursor particles; (4) bringing the assembly of into contact with a flexible substrate; and (5) applying a surface pressure to the dispersion to obtain a particle film of semiconductor/semiconductor precursor on the substrate, wherein the first solvent has a higher density than the second solvent.

Homogenizing heterogeneous foils for light alloy metal parts
20230212707 · 2023-07-06 ·

A method for the manufacturing of an object. The method includes receiving a desired alloy composition for the object, depositing a plurality of foils in a stack to form the object, applying heat to the stack at a first temperature to bond the plurality of foils to each other, and applying heat to the stack at a second temperature to homogenize the composition of the stack. The homogenized stack has the desired alloy composition.

Method for producing an open-pored metal body having an oxide layer and metal body produced by said method

An open-pored metal body, which is formed having a core layer (A) consisting of Ni, Co, Fe, Cu, Ag or an alloy formed having one of said chemical elements, wherein one of said chemical elements is present in the alloy at more than 25 at %, and a gradated layer (B) is formed on surfaces of the core layer (A), said gradated layer being formed by intermetallic phase or mixed crystals of Al, and a layer (C), which is formed having aluminum oxide, is formed on the gradated layer (B).