Tungsten

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The Role of Barium Tungsten Electrode in High-Resolution Microscopy 15

Barium tungsten electrode plays a vital role in high-resolution microscopy, mainly used as an electron source, providing a high-quality electron beam to achieve high-resolution imaging. 1. Basic Composition of Barium Tungsten Electrode Barium tungsten electrode is usually made of tungsten porous matrix impregnated with barium salt. This combination of materials makes it a commonly used cathode in electron microscopes for generating electron beams, with high stability, long life and other characteristics. 2. Working Principle of Barium Tungsten Electrode Barium tungsten…

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Silicotungstic Acid 14

Silicotungstic acid, also known as tungstosilicic acid or tungstosilicic acid hydrate, is an inorganic compound composed of tungsten, silicon, hydrogen, and oxygen. It is an inorganic acid formed by hydrogen ions and silicotungstate anions, with the English name tungstosilicic acid hydrate or silicotungstic acid, molecular formula H?[Si(W?O??)?]·nH?O, molecular weight 2878.17, and CAS number 12027-38-2. Silicotungstic acid appears as a white or pale yellow crystalline powder. It is non-toxic, non-flammable, but slightly irritating, with a purity of up to 98%, a…

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Tungsten Niobium Alloy 17

Tungsten niobium alloy, also known as niobium tungsten alloy, is a two-phase alloy composed of two transition metals or refractory metals, similar to tungsten-molybdenum (WMo) alloys. It is widely used in aerospace, aviation, maritime, military, and defense fields due to its excellent mechanical, thermal, and chemical properties. Note: Tungsten (W) has an atomic number of 74, and niobium (Nb) has an atomic number of 41. Tungsten niobium alloy combines the advantages of tungsten and niobium, featuring a high melting point,…

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Application Value of Barium Tungsten Electrode in High-Energy Particle Accelerators 25

Barium tungsten electrodes play a crucial role in high-energy particle accelerators, especially electron accelerators and free electron lasers, mainly as the core component of high-performance electron sources – electron gun cathodes. Its application value is mainly reflected in the following aspects: 1. Generate High Brightness and High Current Electron Beams High heat electron emission capability: Barium tungsten electrodes can provide very high electron emission current density at relatively low operating temperatures. This is crucial for accelerators that require extremely high…

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Role of Barium Tungsten Electrodes in High-Power Microwave Devices 26

Barium tungsten electrode has become an indispensable key material in high-power microwave devices through its low work function, diffuse cathode structure and environmental protection characteristics. It not only supports the high-power output and stability of the device, but also promotes the wide application of high-power microwave technology in military, industrial, scientific research and other fields. The role of barium tungsten electrode in high-power microwave devices is mainly reflected in the following aspects: 1. Efficient electron emission: the basis for supporting…

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Application of Barium Tungsten Electrodes in Ultraviolet Light Sources 26

The application of barium tungsten electrodes in ultraviolet light sources benefits from its stable electron emission, high temperature resistance, long life and high efficiency. These advantages make it an ideal material for manufacturing high-pressure gas discharge lamps (such as xenon lamps and mercury lamps), and are widely used in scenes that generate ultraviolet light, such as industry, medical and scientific research. 1. Electron Emission The barium tungsten electrode has good electron emission performance and can provide a stable electron flow…

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Advantages of Barium Tungsten Electrodes in Pulsed Lasers 21

Barium tungsten electrodes (usually referring to barium-containing tungsten-based reserve cathodes) play a vital role in pulsed lasers, especially gas discharge-excited pulsed lasers, and are mainly used as high-performance cathodes. Its application core lies in providing an efficient, stable and long-life electron emission source to support the high current and high repetition frequency pulse discharge required by the laser. Advantages of Barium Tungsten Electrodes in Pulsed Lasers 1. Efficient Thermal Electron Emission: Barium tungsten cathode is a reserve diffusion cathode or…

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Application of Barium Tungsten Electrode in Low-Temperature Plasma 19

Low-temperature plasma refers to plasma generated at relatively low temperatures (usually room temperature to several hundred degrees Celsius). It has attracted much attention due to its unique advantages in materials science, biomedicine, environmental science and aerospace technology. Barium tungsten electrode is usually composed of tungsten (W) matrix and barium (Ba) compound. The high melting point and stability of tungsten, combined with the low work function of barium, give barium tungsten electrode excellent electron emission performance and high durability, making it…

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Application of Barium Tungsten Electrode in High-Frequency Plasma 17

The application of barium tungsten electrode in high-frequency plasma benefits from its unique material properties: tungsten provides stability and heat resistance, and barium reduces the work function to improve the electron emission ability. This electrode is an efficient electron emission source in high-frequency plasma systems, which can help generate and maintain stable plasma and is widely used in material processing, surface treatment and plasma chemistry. Barium tungsten electrode is a composite material composed of tungsten and barium. Tungsten is a…

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Tungsten Alloy Bitcoin 20

Like tungsten cubes, tungsten bitcoin is a beloved item among cryptocurrency enthusiasts. Made from a tungsten-based alloy, it is also known as a tungsten alloy bitcoin. Its advantages of being impervious to wear, fade, or deformation make it an ideal souvenir, collectible, or gift for friends. Tungsten bitcoin is a commemorative coin composed of metallic tungsten combined with other metals such as nickel, iron, or copper, with tungsten content in common alloys ranging from 85% to 99%. Tungsten bitcoin combines…

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