Microwave Hydrothermal Synthesis of Rod-shaped Manganese Tungstate Microcrystal

rod-shaped manganese tungstate microcrystals image

Manganese tungstate (MnWO4) crystal has tungsten-manganese iron structure and belongs to the direct bandgap semiconductor material. Because of its special optical, electrical and magnetic properties, it has been widely used in the fields of photoluminescence, optical fibers, scintillators, humidity sensors, magnetic materials and ferroelectric materials.

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Polyphenylene Sulfide-Tungsten High Energy Ray Shield Composites

polyphenylene sulfide-tungsten high energy ray shield composites image

In recent years, lead-containing materials are being gradually eliminated due to their high pollution, high toxicity, low strength and low efficiency. High tungsten content materials are ideal substitutes at present. However, for metal materials, its processing difficulty is very high, which limits its application in some fields.

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Nano Tungsten Carbide Coating on Die Surface

nano tungsten carbide coating on die surface image

With the rapid development of material surface modification technology, thermal spraying, plasma spraying and other technologies are more and more widely used in the die. After the traditional die is used for a long time, the surface of the die will be damaged, cracks and other problems, maintenance troubles, and need to replace the new die.

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Coarse Single Crystal Tungsten Carbide Preparation

coarse single crystal tungsten carbide preparation image

Hard metal is regarded as a kind of composite material, in which WC phase is used as hardness carrier. The brittleness of pure WC related to high hardness can be compensated by metal binder phases (usually Co, or Fe and Ni and their alloys and optional Cr). When the content of binder is high, the mechanical wear resistance is not enough, but when the content of binder is low, the mechanical strength is not enough.

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Tungsten-containing Composite Films Preparation by Homogenizing

tungsten-containing composite films preparation image

Tungsten-containing material is the best high-energy radiation shielding material. It has excellent attenuation and absorption ability to X-ray and radioisotope radiation, which is more than 40% higher than the commonly used lead. It has been widely used in medical diagnosis and treatment, nuclear energy utilization, product safety inspection, industrial flaw detection and other fields.

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MIL-loaded Phosphotungstic Acid

MIL-loaded phosphotungstic acid image

Photocatalytic oxidation technology has good selectivity, can react at room temperature and pressure under mild conditions, and can degrade organic pollutants into non-toxic and harmless inorganic substances. It is a green technology with important application prospects in the field of energy and environment. In recent years, more and more reports have been reported on photocatalytic oxidation of organic wastewater. Semiconductor materials used are also various, such as titanium dioxide, zinc oxide, Fe2O3, CdS, WO3, etc. The photocatalytic stability of WO3 is good, but its activity is relatively small.

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Tungsten Alloy Ultra-thin Plate Preparation

tungsten alloy ultra-thin plate preparation image

Tungsten alloys are alloys based on tungsten with other metals. They have small size, high density, high melting point, high hardness, high wear resistance, high ultimate tensile strength, good ductility, low vapor pressure, high temperature resistance, good thermal stability, corrosion resistance, good seismic resistance, extremely high radiation absorption capacity and excellent impact resistance. It is widely used in industry, military, scientific research, medical treatment, sports and other fields because of its excellent properties such as strength, crack resistance and non-toxicity.

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Niobium Tungsten Hafnium Superalloy Synthesis Scheme

niobium tungsten hafnium superalloy synthesis scheme image

At present, the highest working temperature of the most mature and widely used niobium tungsten hafnium superalloy in the high temperature field is 1050 ~1150 ℃, which has reached 80%~85% of the melting point of the Ni-based superalloys. In order to meet the service conditions of high temperature strength and room temperature plasticity of spacecraft in the temperature range of 1200 1400 ℃, new super high temperature alloy materials with refractory metal matrix are still being developed in China.

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Molybdenum Tungsten Lanthanum Alloy Wire

molybdenum tungsten lanthanum alloy wire image

The addition of lanthanum to pure molybdenum not only improves the strength and toughness of molybdenum, but also increases the recrystallization temperature of molybdenum and improves its high temperature resistance. Therefore, lanthanum-doped molybdenum alloys are used to replace pure molybdenum in the preparation of electric heating materials, wire cutting electrode materials, electric light sources and other industries.

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High Performance Tungsten Carbide Ceramic Materials

high performance tungsten carbide ceramic materials image

Tungsten carbide ceramics are widely used in aerospace, machinery industry, electronic power, armor, chemical industry and other fields because of their excellent performance in strength, wear resistance and corrosion resistance. Among the various properties mentioned above, the hardness of tungsten carbide is still insufficient compared with the other properties. Therefore, how to improve the hardness of tungsten carbide so as to achieve a balanced performance in all aspects, so that it is more suitable for various fields.

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