Advanced Engineering Materials

Description of Tungsten Oxide: Tungsten Oxide , also known as  tungsten trioxide  or tungstic anhydride,  WO3 , is a chemical compound containing oxygen and the transition metal tungsten. Product Name:  Tungsten Trioxide Fsss range:  10~μm(fine), 1~2μm(superfine), 50~100nm Scott Density:  2.0-2.6g/cm3 L.O.I.:  0.5%max Appearance:  Free flowing dark blue or yellow crystalline powder. Packing:  In iron drums with inside plastic bags of 100kg or 200kg net each. Blue Tungsten Oxide Powder Chemical Composition: WO 2.8-2.97(>%) : 99.9 Physical Properties: Particle: -60 mesh Bulk density: 2.4-2.8g/cm3 F.s.s.s.: 12-29um Yellow Tungsten Oxide Powder Chemical Composition: WO 3 (>%): 99.9 Applications of Tungsten Oxide: Electronics industry,  Ceramic painting, producing  tungsten powder / WC powder , new material etc. View original article:  TUNGSTEN OXIDE POWDER

Why do some  sputtering targets  need  target bonding ?  AEM Deposition  shares several reasons for you: 1. A material can transfer heat through its thickness faster when the material is thinner. For most sputtering R&D guns, the thickness of the target is reduced to half when it is bonded to a backing plate because the gun has a maximum thickness allowance. The copper backing plate comprises the other half of the thickness. The thinner target can cool more effectively than a thicker target because the distance that the heat generated on the surface of the target has to travel to reach the cooled side is reduced. 2. A ceramic material can cool more efficiently when bonded. The target is in intimate contact with the conductive solder layer which draws the heat from the target surface and into the copper backing plate. The copper backing plate is in contact with the water cooled gun so the heat is transferred through both pieces of copper and is removed t...

Description of Tungsten Carbide Powder: Tungsten carbide powder  (WC) is the main raw material for the production of cemented carbide, chemical formula is  WC . Tungsten carbide powder is a black six square crystal, with metallic luster. Its hardness was similar to diamond, a good conductor of electricity and heat. The melting point is 2870 DEG, the boiling point is at a temperature of 6000 DEG , and the relative density is about 15.63 (18 DEG C). Tungsten carbide is insoluble in water, hydrochloric acid and sulfuric acid, soluble in mixed acid of nitric acid and hydrofluoric acid. The  pure tungsten carbide  is fragile, but the brittleness will reduce, if mixed with a small amount of titanium, cobalt and other metals. Processing as the tungsten carbide cutting tool, in order to improve the anti explosion capacity,  titanium carbide ,  tantalum carbide  is often added. Chemical stability of tungsten carbide. Applications of Tungsten Carbide Powde...

Rare earth metals and alloys that contain them are used in many devices that people use every day such as computer memory, DVDs, rechargeable batteries, cell phones, catalytic converters, magnets, fluorescent lighting and much more. During the past twenty years, there has been an explosion in demand for many items that require rare earth metals. Twenty years ago there were very few cell phones in use, but the number has risen to over 7 billion in use today. The use of rare earth elements in computers has grown almost as fast as cell phones. Many rechargeable batteries are made with rare earth compounds . Demand for the batteries is being driven by demand for portable electronic devices such as cell phones, readers, portable computers, and cameras. Usage of  Rare Earth Elements : Chemical Catalysts: 55% Metallurgy & Alloys: 15% Ceramics and Glass Making: 10% Glass Polishing: 10% Other: 10% Several pounds of rare earth compounds are in batteries that power every elect...

A thin film is a layer of material that is applied to a substrate to give its surface a different property, including color, light reflection or refraction, hardness, electrical insulation and conductance. Thin layers of materials are used to develop filters, increase insulation or conduction, protect them from lights or create reflective surfaces. Thin film thickness ranges from fractions of a nanometer (1 nm = 0.000000001 m = 10 angstroms) to several micrometers (1 μm = 0.000001 m). For reference, the diameter of a human hair ranges from 17-181 μm. A strand of spider web silk has a width of 3 to 8 μm. Manufacturers seeking to apply thin films have a host of deposition methods available to them, but the ideal method for a given application depends on the purpose of the deposition, the surface makeup of the substrate, and the thickness desired. There are basically two methods of deposition: chemical or physical. Chemical Deposition Chemical deposition is a process by which a sub...

1. They're used in smartphones and electric cars Seventeen elements are categorized as rare earths . These metals are used in everything from smartphones and electric vehicle motors to wind turbines. Japanese researchers call them "industrial vitamins" due to their critical role in high-tech sectors. 2. China dominates global production China used to hold a virtual monopoly over the world's rare-earth supplies. At times, this has contributed to geopolitical tensions: Beijing's export restrictions in 2010 sparked a global outcry, causing Japan, the U.S. and the European Union to file a complaint with the World Trade Organization in 2012. The WTO eventually ruled against China, and the country scrapped its export quotas in 2015. While China is not quite as dominant as it once was, due to government curbs on production and the rise of other producers like Australia, the country still accounts for the bulk of global output. Japan and other industrial countrie...