摘要:
Methods of refining the grain size of a titanium alloy workpiece include beta annealing the workpiece, cooling the beta annealed workpiece to a temperature below the beta transus temperature of the titanium alloy, and high strain rate multi-axis forging the workpiece. High strain rate multi-axis forging is employed until a total strain of at least 1 is achieved in the titanium alloy workpiece, or until a total strain of at least 1 and up to 3.5 is achieved in the titanium alloy workpiece. The titanium alloy of the workpiece may comprise at least one of grain pinning alloying additions and beta stabilizing content effective to decrease alpha phase precipitation and growth kinetics.
摘要:
[TECHNICAL PROBLEM] To provide a negative electrode for an electric device such as a Li ion secondary battery which exhibits balanced characteristics of providing high initial capacity and maintaining high cycle characteristics. [SOLUTION TO PROBLEM] The negative electrode for an electric device includes: a current collector; and an electrode layer containing a negative electrode active material, an electrically-conductive auxiliary agent and a binder and formed on a surface of the current collector. The negative electrode active material is a mixture of a carbon material and an alloy expressed by formula (1): Si x Ti y M z A a ...(1) (in formula (1), M is at least one metal selected from the group consisting of Ge, Sn, Zn, and combinations thereof, A is inevitable impurity, and x, y, z, and a represent mass percent values and satisfy 0
摘要:
Assembly, comprising: two ceramic bodies that are connected by means of a joint, which has an active hard solder, wherein the active hard solder has over a contiguous pore volume, which is respectively at a distance of at least 1 µm from the ceramic bodies, an average composition C K with a liquidus temperature T 1 (C K ), wherein the composition C K has a coefficient of thermal expansion a(C K ), for which a(C K ) = m.a(K), where m ≤ 1.5, in particular m ≤ 1.3 and preferably m ≤ 1.2, where a(K) is the average coefficient of thermal expansion of the ceramic material of the ceramic bodies, wherein the joint has boundary layers which bound the ceramic bodies, wherein at least one of the boundary layers that lies outside the core volume has an average composition C G with a liquidus temperature T 1 (C G ) that is not less than 50 K, preferably not less than 100 K, and particularly preferably not less than 200 K below the liquidus temperature T 1 (C K ) of the average composition C K of the core volume.
摘要:
A power distribution system element formed via an additive manufacturing technique (101), such as applying a conductive material to a memory metal substrate, are discussed herein. In operation (e.g. in response to delivering current through the distribution system), the memory metal contracts while the conductive material expands. The result is distribution system element having reduced thermal expansion, which can be net zero coefficient of thermal expansion.
摘要:
The invention relates to a sputtering technique for substrate coating. According to one aspect, a plant for coating a substrate (102) via sputtering is provided, which comprises a sputtering target (108) providing a coating material for ejection during a sputtering process and deposition on the substrate. The sputtering target (108) further comprises a dopant material for amplification of a sputtering yield. The dopant material comprises at least one of hafnium, tantalum, tungsten, rhenium, osmium, iridium.
摘要:
A titanium alloy member with high strength and high proof stress not only in the surface but also inside, using a general and inexpensive ±-² type titanium alloy, and a production method therefor, are provided. The production method includes preparing a raw material made of titanium alloy, nitriding the raw material to form a nitrogen-containing raw material by generating a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the raw material, mixing the raw material and the nitrogen-containing raw material to yield a nitrogen-containing mixed material, sintering the nitrogen-containing mixed material to obtain a sintered titanium alloy member by bonding the material together and uniformly diffusing nitrogen in solid solution from the nitrogen-containing raw material to the entire interior portion of the sintered titanium alloy member, and hot plastic forming the sintered titanium alloy member.