Tungsten News

Tungsten News
Silver Tungsten Rod Is Used in Electrical and Electronic Applications 141

A silver tungsten rod is a type of composite material typically composed of silver (Ag) and tungsten (W). It is often used in electrical and electronic applications due to its unique properties. Here are some key characteristics of this material: Electrical Conductivity: Silver is an excellent conductor of electricity, while tungsten has good electrical conductivity. Combining these two materials in a composite rod can yield a material with improved electrical conductivity compared to pure tungsten. Thermal Conductivity: Silver is also…

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What Are the Differences of Barium Tungsten Electrodes and Tungsten Electrodes? 119

Barium tungsten electrodes have unique properties that differentiate them from other types of tungsten electrodes. Here are the key differences as following: Electron Emission Properties: BaW Electrodes: they are known for their excellent electron emission properties. The addition of barium to the tungsten material enhances its electron emission capability, making it efficient in applications requiring controlled electron emission, such as cathode ray tubes (CRTs). Other W Electrodes: Other electrodes, such as pure tungsten or thoriated tungsten, do not have the…

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Barium Tungsten Cathodes Applied in Photography Lamps for High-quality Lighting 122

Barium tungsten cathodes, also known as barium-tungsten electrodes, are a type of electrode used in various electronic devices and equipment. They are indeed used in photography lamps, especially in some types of studio lighting equipment and flash units. Here are some key reasons why they are employed in these applications: High Efficiency: These kinds of cathodes have a high electron emission efficiency, which means they can emit electrons efficiently when heated. This property is crucial for generating the intense light…

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Why Can Barium Tungsten Cathodes Be Used in Signal Lights? 103

Barium tungsten cathodes are used in signal lights, specifically in electron tubes and cathode-ray tubes (CRTs), for several reasons: High Electron Emission Efficiency: These cathodes have a high electron emission efficiency, which means they can efficiently emit electrons when heated. This property is essential for electron tubes, where the cathode’s ability to emit electrons determines the device’s performance. Stability: BaW cathodes provide stable and consistent electron emission over time. This stability is crucial for these lights, where a reliable and…

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Tungsten Copper Rods Are Used as Electrodes in Resistance Welding Applications 95

Tungsten copper rods are commonly used as electrodes in resistance welding applications due to their excellent electrical and thermal conductivity, as well as their resistance to wear and deformation. Here’s how tungsten copper rods are used as electrodes for resistance welding: Material Composition: Tungsten copper is a composite material consisting of a matrix of copper (Cu) and finely dispersed tungsten (W) particles. The percentage of tungsten can vary, typically ranging from 10% to 50%. The choice of composition depends on…

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Barium Tungsten Cathodes Ensure the Performance of Laser Flash Lamps 90

Barium tungsten cathodes are indeed used in various applications, including laser flash lamps. These lamps are often employed in optical pumping systems for solid-state lasers, such as ruby lasers and neodymium-doped yttrium aluminum garnet (Nd:YAG) lasers. Here’s how these cathodes are used in laser flash lamps: Lamp Construction: Laser flash lamp consists of a tube filled with a xenon or krypton gas mixture. The cathode is one of the key components within this lamp. Electron Emission: When electrical current is…

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How to store Barium Tungsten Cathode? 89

The barium tungsten cathode is composed of a porous substrate and nitrate barium evenly filled in it. The BaO component in the nitrate barium easily absorbs moisture and other impurities. In order to ensure the effectiveness of barium tungsten products, it is required not to be exposed to the atmosphere for more than 48 hours before use, and moisture, dust and other pollutants must be prevented from contacting the products to the greatest extent. To ensure the best performance, it…

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Why Molybdenum-rhenium Alloys Can Be Used in Space Nuclear Reactors? 160

Molybdenum-rhenium (Mo-Re) alloys are considered suitable materials for use in space nuclear reactors for several reasons: High Melting Point: Mo-Re alloys have exceptionally high melting points, with molybdenum having a melting point of approximately 2,623 degrees Celsius (4,753 degrees Fahrenheit) and rhenium around 3,180 degrees Celsius (5,756 degrees Fahrenheit). This property allows them to withstand the extreme temperatures generated in nuclear reactors, ensuring structural integrity under high-temperature conditions. Thermal Stability: These alloys exhibit remarkable thermal stability, making them resistant to…

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What Are the Applications of Molybdenum Rhenium Alloys? 133

Molybdenum-rhenium (Mo-Re) alloys are widely used in aerospace, heating equipment, and electronic technology and other applications. Here are some of their uses: Filaments: Mo-Re alloys are often used as filaments in electron guns for cathode ray tubes (CRTs), electron microscopes, and X-ray machines. These alloys can withstand high temperatures and have excellent emission properties, making them suitable for generating electron beams. Thermocouples: Mo-Re alloys are utilized in high-temperature thermocouples, especially for measuring extremely high temperatures in various industrial processes. Their…

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Molybdenum-Rhenium Plate Serves a Wide Range of Applications in Aerospace Industries 165

Molybdenum-Rhenium is an alloy composed of molybdenum and rhenium, and serves a wide range of applications in electronics, furnace, joining, and aerospace industries. Molybdenum and rhenium are two precious metals that are often synthesized into alloys for better performance and characteristics. Molybdenum-rhenium plate is manufactured in a standard alloy of 47.5% rhenium and has some unique features that make it useful in specific fields as following: High melting point: Both molybdenum and rhenium are high melting point metals, alloyed molybdenum…

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