Tungsten News

Tungsten News
Why Use MoSi2 Heating Elements in High Temperature Furnaces? 152

Molybdenum disilicide heating element is a heating element based on molybdenum disilicide (MoSi2), which has excellent characteristics such as high temperature resistance, corrosion resistance, good air tightness, thermal shock resistance, and long service life. It is usually used in the ceramics, glass, metallurgy, magnetic materials, refractory materials, and other industrial high temperature furnaces. Compared with traditional heating elements, the specific advantages of MoSi2 heating elements are as follows: 1) The operating temperature is high. In an air environment, the operating…

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Tungsten News
The Differences Between Cerium Tungsten Electrode and Thorium Tungsten Electrode 127

With the continuous development of science and technology such as welding, cutting and spraying technology, manufacturers have higher and higher requirements for tungsten electrodes, such as easy arc starting, stable arc column and long service life. In order to improve the deficiencies of pure tungsten electrodes, researchers often add an appropriate amount of modifiers such as cerium oxide (CeO2) or thorium oxide in the production process, and the prepared products are naturally called corresponding electrodes such as cerium tungsten electrode…

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Tungsten News
Molybdenum Foil and Tungsten Foil for Aluminum-ion Battery 161

Molybdenum foil is a very thin molybdenum sheet. Its thickness usually ranges from 0.002mm to 0.1mm and width should be ≥ 50mm. As the metal foil has the characteristics of high purity, low resistance, good electrochemical performance and chemical stability, it can be used as a current collector in aluminum ion batteries. Aluminum-ion battery is a rechargeable battery composed of negatively charged aluminum anode, positively charged graphite cathode, diaphragm and electrolyte, and has similar dings to lithium-ion batteries. Due to…

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Tungsten News
Molybdenum Disilicide Powder Is Used to Produce MoSi2 Heaters and Thermocouple Protection Tubes 160

Like tungsten disilicide (WSi2) powder, molybdenum disilicide powder is also an inorganic compound composed of one transition metal atom (both tungsten and molybdenum are transition metal elements) and two non-metallic silicon atoms. It is a black powder, and the chemical formula is MoSi2, the molecular weight is 152.11, the purity is as high as 99.9%, the crystal structure is square, and the CAS number is 12136-78-6. The main components of MoSi2: Si (T.C) total silicon 36%~38%, the rest is molybdenum…

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Tungsten News
MoSi2 Heating Elements Are Used in Vacuum Furnaces and Glass Furnaces 127

Molybdenum disilicide heating element, also known as MoSi2 heating element, MoSi2 heater, silicon molybdenum rod or molybdenum disilicide heater, is an excellent resistance heating element with the advantages of high temperature resistance, low aging, anti-oxidation. They are commonly used in various heat treatment furnaces, denture sintering furnaces, experimental electric furnaces, vacuum furnaces, tunnel kilns, roller kilns, casting furnaces, smelting furnaces, glass furnaces and other high-temperature equipment. According to different shapes, MoSi2 heating elements can be divided into straight rods, U-shaped…

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Tungsten News
A New Production Method to Make Tungsten Target 125

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;…

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Tungsten News
Tungsten Needles and Tungsten Rhenium Needles Used in the Construction of Probe Cards 159

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,…

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Tungsten News
Molybdenum Foil Can Be Used as a Current Collector in Aluminum-ion Battery 202

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…

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Tungsten News
What Are Applications of Molybdenum Foil? 145

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…

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Tungsten News
Tungsten foil for Electric light Source Parts and Electric Vacuum Devices 165

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,…

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