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Why Is Cemented Carbide So Hard? 53

?????????? Cemented carbide is mainly composed of tungsten carbide and cobalt. Tungsten carbide (WC) is a metal ceramic with a Vickers hardness of up to 2200 HV, close to the 10000 HV of diamond. Its crystal structure is hexagonal, and carbon atoms and tungsten atoms are bonded by strong covalent bonds with a bond energy of up to 700 kJ/mol, giving it extremely high hardness. Cobalt is used as a binder, and the content is usually 6%-15%. Through powder metallurgy,…

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How Is the Wear Resistance of Cemented Carbide? 47

?????????? The wear resistance of cemented carbide comes from the high hardness of tungsten carbide, with a Vickers hardness of 2200 HV. The crystal structure is hexagonal, and the bond energy of carbon-tungsten covalent bonds is as high as 700 kJ/mol, which has strong wear resistance. Cobalt binder enhances the bonding force between particles and reduces wear and tear. Experiments show that after 1000 frictions, the wear amount of cemented carbide is only 1/10 of that of steel! Due to…

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Polymer Tungsten Sheet 28

?????????? Polymer tungsten sheet is a composite of tungsten powder and resin. Polymer tungsten sheet is widely used in the medical field due to its high density and excellent radiation shielding performance. It is often used as a shielding component for CT machines and X-ray equipment, which can effectively shield gamma rays and X-rays. The shielding efficiency is about 30% higher than that of traditional lead materials, protecting medical staff and patients from radiation damage. At the same time, polymer…

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Tungsten Alloy Gamma Ray Shielding 30

?????????? Tungsten alloy gamma ray shielding plays an important role in the medical field and is highly favored for its high density and excellent radiation shielding performance. The density of tungsten alloy is as high as 17-18.5 g/cm3, which is about 70% higher than lead. It can effectively shield gamma rays and X-rays, and the shielding efficiency is more than 30% higher than lead. It is often used in shielding parts of CT machines, X-ray equipment and radiotherapy equipment, such…

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High Purity Tungsten Trioxide 234

????????? The chemical formula of high purity tungsten trioxide is WO3, with a purity of 4N or 5N. It has high conductivity for electron migration, high temperature stability, and the ability to form stable silicides. It is used as gate, connection and barrier metals in the form of thin films in the electronics industry, and is also used as wiring materials for semiconductors.

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Ammonium Metatungstate (AMT) 46

????????? The English abbreviation of ammonium metatungstate is AMT, which is a white or slightly yellow crystalline powder. It is very soluble in water, and its solubility in water increases with the increase of temperature. It is insoluble in alcohol. Preparation method: Heat and thermally dissociate ammonium paratungstate to make it lose part of ammonium and crystal water to obtain ammonium metatungstate. Ammonium metatungstate is often used in the preparation of metal tungsten, high-efficiency tungsten catalysts in petrochemicals, nuclear shielding…

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Cesium Tungsten Bronze (Cs0.33WO3) 36

????????? The chemical formula of cesium tungsten bronze is Cs0.33WO3. It is a new functional material that has strong absorption in the near-infrared region (wavelength 800 to 1200 nanometers) and high transmittance in the visible light region (wavelength 380 to 780 nanometers).

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Tungsten Alloy Radiation Source Holder 153

????????? Meticulously crafted by CTIA GROUP, the tungsten alloy radiation source holder is made from high-density tungsten alloy with a density of 17-19 g/cm3, perfectly blocking gamma rays and offering unmatched protection for radiation sources. With just a 20 mm thickness, it can reduce gamma ray intensity by over 85%, ensuring safety and reliability in non-destructive testing and medical operations. Its robust durability, corrosion resistance, and precision threading design make it easily adaptable to various equipment, meeting the stringent demands…

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Tungsten Alloy Shielding Container: Efficient Radiation Protection 22

????????? Tungsten Alloy Medical Shielding Container—The Ultimate Barrier Protecting Life Developed and produced by CTIA GROUP, the tungsten alloy medical shielding container utilizes high-density tungsten alloy with a density of 17-19 g/cm3, effectively shielding gamma rays and X-rays to ensure safety during radiation protection. With just a 25 mm thick tungsten wall, it can reduce gamma ray intensity by over 90%, protecting healthcare professionals and patients from radiation hazards. The product is high-temperature resistant, corrosion-resistant, non-toxic, and environmentally friendly, with…

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Tungsten Alloy Archery Counterweight 34

????????? The tungsten alloy archery counterweight is the ideal choice for precision shooting. Carefully crafted by CTIA GROUP, it utilizes high-density tungsten alloy with a density of 17-19 g/cm3, over 50% higher than traditional lead counterweights. With just a few grams of tungsten alloy components, it provides precise weight adjustment, enhancing the balance and stability of the bow and arrow. Corrosion-resistant, wear-resistant, non-toxic, and environmentally friendly, its compact design perfectly fits various types of archery equipment, ensuring outstanding performance for…

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