Tungsten News

Tungsten News
A New Production Method to Make Tungsten Target 206

Tungsten target, also known as tungsten sputtering target, is a typical pure tungsten product with high purity, high melting point, high density, high deflection strength, good thermochemical stability, low resistance, non-toxic and non-radioactive characteristics. It is widely used in flat panel displays, solar cells, integrated circuits, automotive glass, medical equipment and other industries. The researcher with the patent number CN102513789A provides a method for producing it and steps are as follows: Provide target blanks; machine the surface of the blanks;…

Tungsten News
Tungsten Needles and Tungsten Rhenium Needles Used in the Construction of Probe Cards 232

Tungsten needle, also named tungsten pin, mainly refer to thin tungsten rod or thin tungsten rod with sharp tip. Their properties are basically the same, but uses are different. Mostly, their diameters are usually below 2mm and lengths range from 15mm to 100mm. For thin tungsten rod, it is mainly used as an electrode for argon arc welding. During welding, an arc will be generated between the tungsten electrode and the workpiece, and under the action of the arc heat,…

Tungsten News
Molybdenum Foil Can Be Used as a Current Collector in Aluminum-ion Battery 287

Molybdenum foil is a thin sheet made of transition metal molybdenum material, which has the characteristics of high purity, low resistance, good electrochemical performance and chemical stability. It is lightweight and flexible, can be used as a substrate for the fabrication of CdS-CdTe solar cells. Interaction of selenium, arsenic hydrides, stibine and bismuthine with Mo foil was investigated by atomic absorption spectroscopy. The metal foil may be used to generate metal diffusion bonding in silicon carbide/silicon carbide (SiC/SiC) joints. In…

Tungsten News
What Are Applications of Molybdenum Foil? 192

Like molybdenum plate, molybdenum rod and molybdenum wire, molybdenum foil is also a typical molybdenum product with 0.025mm to 0.09mm thickness and 30-100mm width. Its purity is more than 99.95% and surface is very bright. In terms of physical and chemical properties, this metal foil is a silver-gray metal flake with metallic luster, with a melting point of about 2620℃, a boiling point of about 5560℃, a relative density of 10.2g/cm3, high hardness and low thermal expansion coefficient, high thermal…

Tungsten News
Tungsten foil for Electric light Source Parts and Electric Vacuum Devices 214

Tungsten foil is a kind of thin tungsten sheet with thinner thickness of 0.05mm to 0.3mm and more narrow width of 50mm to 400mm. With more than 99.95% purity, it owns excellent thermal, mechanical, chemical and electrical properties, and is widely used in many fields. Regarding its physical and chemical properties, it is a silver-gray metal sheet with metallic luster, with a melting point of about 3410 °C, a boiling point of about 5660 °C, a relative density of 19.35g/cm3,…

Tungsten News
Non-sag Tungsten Wire Replaces High Carbon Steel Wire as Base Material of Diamond Wire Saw 199

Diamond wire saw, also known as diamond wire, refers to a cutting wire that uses electroplating process or resin bonding method to fix diamond abrasive on metal wire. It is mainly used to cut high hard and brittle materials such as single crystal silicon, polycrystalline silicon, sapphire, magnetic materials and cemented carbide, etc. Compared with free abrasive wire saws, it has the advantages of higher processing efficiency, lower energy consumption, and better cutting quality; compared with circular saws and band…

Tungsten News
Why Fine Tungsten Wire Can Be Used for Window Heating? 152

Tungsten is the most widely used refractory metal with up to 3410℃ melting point. It also has good electrical and thermal conductivity under the conditions of low thermal expansion, low vapor pressure and high temperature, so tungsten is widely used to make filaments of various incandescent lamps and tungsten halogen lamps and electrodes of gas discharge lamps. In addition, tungsten wire can be used as a heating material for high temperature furnaces, heating elements for electronic tubes and reinforcing ribs…

Tungsten News
What Is the Function of Molybdenum Seed Holder in Sapphire Crystal Growth? 194

What Is Molybdenum Seed Holder? Molybdenum seed holder, also named molybdenum chuck, is widely used in vacuum furnaces and sapphire crystal growth furnaces to connect the seed rod for crystal growth. The seed rod inserted into the moly chuck, and fixed by a molybdenum pin or taper. The purity of this holder is above 3N5, the density can reach 10.0g/cm3, and the working temperature is controlled below 1700℃. Regularly, the diameter ranges from 10mm to 100mm and length ranges from…

Tungsten News
Why Molybdenum Hammer Is Important in the Monocrystalline Silicon Growth? 193

What Is Molybdenum Hammer? The hammer is usually made of tungsten and molybdenum materials as it is used in high temperature furnaces that require the materials to be heat resisting. It is mainly used to connect molybdenum seed holder and tungsten wire rope, and is hung on the suspension clamp or jumper the bottom, increasing the clamp vertical load heavy objects. Although the product can be made from both tungsten and molybdenum metals, as tungsten price is higher than molybdenum,…

Tungsten News
Types of JEOL’s EB Tungsten Filament 214

What Is JEOL’s EB Tungsten Filament？ Evaporation source materials used for vapor deposition require excellent electrical conductivity, high melting point and low vapor pressure. Therefore, many vapor deposition accessories are made of tungsten. Filaments/heaters made of tungsten have the characteristics of high melting point, low thermal expansion coefficient, good corrosion resistance and long evaporation life. Japan Electron Optical Laboratory is the full name of JEOL. After decades of exploration and research by the world’s top scientific instrument manufacturers, they created…

1 … 50 51 52 53 54 … 71