The present disclosure relates to an aluminum alloy material, and specifically to a weldable in-situ nano-strengthened rare-earth metal (REM)-containing aluminum alloy with high strength and toughness and a preparation method thereof. In the present disclosure, in-situ nano-ceramic particles and REMs simultaneously introduced into an AlZnMg alloy can effectively refine the grains and significantly improve the strength and toughness of the alloy; and REM-containing nano-precipitated phases and in-situ nanoparticles distributed in the grains or at grain boundaries can also significantly increase a recrystallization temperature of the alloy, effectively inhibit the dynamic recovery, reduce the re-dissolution of alloying elements, and improve the weldability of the alloy.

A semiconductor device including a semiconductor substrate and an electrode formed from an alloy containing aluminum, silicon and titanium. The silicon content in the electrode is from 0.5 to 1.0% by weight relative to the total weight of the electrode, the titanium content in the electrode is from 0.8 to 3.0% by weight relative to the total weight of the electrode, and the thickness of the electrode is at least 1 m.

This porous aluminum sintered compact is a porous aluminum sintered compact in which a plurality of aluminum base materials are sintered together, and a TiAl-based compound is present in bonding portions at which the aluminum base materials are bonded together. It is preferable that a plurality of columnar protrusions protruding outwards are formed on an outer surface of the aluminum base material and the bonding portions are present at the columnar protrusions.

A device including a near field transducer, the near field transducer including gold (Au), silver (Ag), copper (Cu), or aluminum (Al), and at least two other secondary atoms, the at least two other secondary atoms selected from: boron (B), bismuth (Bi), indium (In), sulfur (S), silicon (Si), tin (Sn), manganese (Mn), tellurium (Te), holmium (Ho), lutetium (Lu), praseodymium (Pr), scandium (Sc), uranium (U), barium (Ba), chlorine (Cl), cesium (Cs), dysprosium (Dy), europium (Eu), fluorine (F), germanium (Ge), hydrogen (H), iodine (I), rubidium (Rb), selenium (Se), terbium (Tb), nitrogen (N), oxygen (O), carbon (C), antimony (Sb), gadolinium (Gd), samarium (Sm), thallium (Tl), cadmium (Cd), neodymium (Nd), phosphorus (P), lead (Pb), hafnium (Hf), niobium (Nb), erbium (Er), zinc (Zn), magnesium (Mg), palladium (Pd), vanadium (V), zinc (Zn), chromium (Cr), iron (Fe), lithium (Li), nickel (Ni), platinum (Pt), sodium (Na), strontium (Sr), calcium (Ca), yttrium (Y), thorium (Th), beryllium (Be), thulium (Tm), erbium (Er), ytterbium (Yb), promethium (Pm), neodymium (Nd cobalt (Co), cerium (Ce), lanthanum (La), praseodymium (Pr), or combinations thereof.

This method for producing porous sintered aluminum includes: mixing aluminum powder with a sintering aid powder containing a sintering aid element to obtain a raw aluminum mixed powder; forming the raw aluminum mixed powder into a formed object prior to sintering having pores; and heating the formed object prior to sintering in a non-oxidizing atmosphere to produce porous sintered aluminum, wherein the sintering aid element is titanium, and when a temperature at which the raw aluminum mixed powder starts to melt is expressed as Tm ( C.), then a temperature T ( C.) of the heating fulfills Tm-10 ( C.)T685 ( C.).

The invention relates to a plain bearing composite material, comprising a supporting layer (12) made of steel, a bearing metal layer (14) made of copper or a copper alloy, which is applied to the supporting layer (12), and a functional layer (16) made of aluminum or an aluminum alloy, which is applied to the bearing metal layer (14).

A process for manufacturing a part comprising a formation of successive metal layers, superimposed on one another, wherein each layer is formed by the deposition of a filler metal, the filler metal being subjected to an input of energy so as to melt and to constitute said layer by solidifying, the process being characterized in that the filler metal is an aluminium alloy comprising the following alloy elements (% by weight): Fe: 2% to 8%, and preferably 2% to 6%, more preferentially 3% to 5%; optionally Zr: 0.5% to 2.5% or 0.5% to 2% or 0.7% to 1.5%; optionally Si: <1%, or even <0.5% or even <0.2% or even <0.05%; optionally Cu: 0.5%, or even <0.2%, or even <0.05%; optionally Mg: 0.2%, preferably 0.1%, preferably <0.05%; optionally other alloy elements<0.1% individually and in total<0.5%; impurities: <0.05%, or even <0.01% individually, and in total<0.15%; remainder aluminium.

Methods, solutions and material systems for increasing the heat yield for a substance which reacts with water to produce hydrogen gas and heat are disclosed herein. The methods include providing a substance which reacts with water to produce hydrogen gas and heat, providing an aqueous solution comprising an oxidizer and an optional salt, and reacting the substance and the composition to generate hydrogen and heat.

Metallic matrix composites include a high strength titanium aluminide alloy matrix and an in situ formed aluminum oxide reinforcement. The atomic percentage of aluminum in the titanium aluminide alloy matrix can vary from 40% to 48%. Included are methods of making the metallic matrix composites, in particular, through the performance of an exothermic chemical reaction. The metallic matrix composites can exhibit low porosity.

An apparatus for manufacturing a semiconductor device and a method of manufacturing the apparatus, the apparatus including a heater configured to heat a target, and a coating layer, the coating layer including a ternary material of transition metal (M)-aluminum (Al)-nitrogen (N) represented by the following Chemical Formula:
M.sub.xAl.sub.1-xN.sub.y,[Chemical Formula]
wherein x and y satisfy the following relations: 0<x<1 and y1.