Tungsten News

Tungsten News
CTIA GROUP LTD Recognized as RMI Conformant Downstream Facility for Tungsten 1,177

CTIA GROUP LTD is recognized as RMI Conformant Downstream Facility for Tungsten in May,2023. RMI developed the Downstream Assessment Program (DAP) as a mechanism by which downstream companies, within the cobalt or tin, tantalum, tungsten, gold (3TG) supply chains, can obtain independent validation that their responsible sourcing practices are aligned to OECD Due Diligence Guidance for Responsible Mineral Supply Chains from Conflict-Affected and High-Risk Areas (OECD Guidance). 2 This program is solely for downstream companies that do not meet the…

Tungsten News
What Are Differences Between Molybdenum Wafer and Molybdenum Sheet? 216

Molybdenum wafer and molybdenum sheet are both molybdenum products with thin thickness and similar production processes and applications. However, they also have differences as following: Shape and size: moly wafers are circular flakes made of molybdenum materials, usually with a diameter below 3.0mm and the moly sheet is a rectangular sheet, which is usually thicker than water. The maximum width is about 600mm but the length can reach 3000mm. Applications: they have different uses due to their different shapes and…

Tungsten News
Molybdenum Wafers Are Used as Substrates of Silicon Controlled Rectifier (SCR) 226

Molybdenum wafers are made of pure molybdenum material with purity over 99.95%, which can be used in high temperature technology, electronic devices, aerospace, chemical industry, and other fields due to their characteristics of high temperature, high strength and high stability. The processing technology can be referred to the following: Cutting: the original material of wafers can be in forms of plates, strips or rods, which need to be cut according to the required diameter and thickness of the wafers. Cutting…

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Why Molybdenum Wafer Can Be for Bonding to LED Chips? 189

Molybdenum wafer is a flake-shaped molybdenum material, usually with a thinner thickness and larger diameter. It is usually used in applications under high temperature, high pressure and strong corrosive environment, such as aviation, aerospace, electronics, chemical industry and other fields, and is manufactured through molybdenum material processing technology, such as rolling, drawing and other methods. It can vary in size depending on specific application needs. Normally, its thickness can range from 0.05mm to 10mm, and the diameter can be large…

Tungsten News
Molybdenum Wafer Is Used as Heat-sinker for LED chips 208

Molybdenum wafer is a circular sheet made of molybdenum material, usually with a diameter of 0.1mm to 2.0mm. It usually has high density, good mechanical properties and corrosion resistance, and can be used to manufacture various high-temperature and corrosion-resistant parts. From the point of view of appearance, they are generally dark brown, but after alkali washing, they are usually silver gray with high gloss. The surface is smooth and flat, without heavy skin, delamination, inclusion of impurities, and cracks, and…

Tungsten News
What Are the Main Factors Affect Solubility of Ammonium Metatungstate? 154

Ammonium metatungstate (AMT) is an inorganic compound that is commonly used in various industrial applications. The solubility of AMT is affected by several factors, including: Temperature: The solubility of AMT in water increases with temperature. Therefore, at higher temperatures, more AMT can dissolve in water. pH: The solubility of AMT in water is also affected by the pH of the solution. At acidic pH values, the solubility of AMT is higher than at alkaline pH values. Concentration: The solubility of…

Tungsten News
What Are the Main Factors Affect pH Value of Ammonium Metatungstate? 132

Ammonium metatungstate (AMT) is an inorganic compound that can be used in a variety of industrial applications, including as a catalyst and a raw material for the production of tungsten. The pH value of AMT can be affected by several factors, including: Concentration of AMT: The pH of AMT solution is affected by the concentration of AMT. At higher concentrations, the pH tends to be more acidic, while at lower concentrations, the pH tends to be more basic. Temperature: Temperature…

Tungsten News
Performance of Tungsten Alloy As Shielding Material 161

Tungsten alloy is a type of material that is widely used as a shielding material in various applications. It is a mixture of tungsten and other elements, such as nickel, iron, or copper, and is known for its high density and high radiation absorption capabilities. These properties make tungsten alloy an ideal material for shielding against ionizing radiation, such as gamma rays and neutrons. The high density of tungsten alloy means that it is highly effective at absorbing radiation and…

Tungsten News
Tungsten Alloy Medical Shielding: Protecting Patients and Medical Personnel during Diagnostic and Therapeutic Procedures 159

Medical procedures that involve the use of ionizing radiation, such as X-rays and CT scans, can be potentially harmful to both patients and medical personnel. To minimize the risks associated with these procedures, it is crucial to use appropriate radiation shielding. One of the most effective materials for radiation shielding is tungsten alloy. Tungsten alloys are made of tungsten, a dense and highly radioactive material, combined with other metals such as nickel or iron. The resulting material is extremely dense…

Tungsten News
Tungsten Heater to Be Used in Vacuum Evaporators 170

Tungsten heater is a typical tungsten product made of pure tungsten wire or doped tungsten wire through drawing, stranding, pressing molding and surface treatment (electropolishing or alkaline cleaning or cleaning). It has quite excellent thermal, mechanical and chemical properties, such as high melting point, low evaporation rate, small thermal expansion coefficient, impact resistance and corrosion resistance, etc., so it has a wide range of uses, such as used as evaporation source materials for vacuum evaporators. Evaporation is a kind of…

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