Nano Structured Crystalline Tungsten Oxides
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- Category: Tungsten Information
- Published on Friday, 12 June 2015 17:39
- Written by xiaoshan
- Hits: 423
Tungsten oxides, as one of the important oxide semiconductors, are the most widely investigated materials for EC devicesbecause they can be used as intercalation host for H+, Li+, Na+,and Zn2+ to form tungsten bronze with blue color due to their special tunnel structure.
With the development of tungsten oxide films, nowday it has been widely used in many area such as energy-saving smart windows,high contrast displays, sunroofs, and antiglare mirrors.but after many studies found amorphous tungsten oxide films have poor electrochemical stability, so research work has been mainly focused on nano structured crystalline tungsten oxides. For instance, some researcher reported that WO3 nano particles showed greater charge density for proton intercalation and comparable coloration efficiency compared with conventional amorphous WO3 films. Researcher fabricated WO3 nanowires and investigated their electrochromic property. They found that the nanowires showed fast optical response time and high coloration efficiency. Researcher also reported that WO3 nanorods exhibited high electrochromic stability and comparable color display, contrast and coloration/bleaching response.
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Tungsten Poly Shielding for Dry Fuel Storage Campaigns
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- Category: Tungsten Information
- Published on Friday, 12 June 2015 17:37
- Written by wenjing
- Hits: 476
Tungsten poly shielding effective for gamma and neutron fields is now available for dry fuel storage campaigns. This high temperature shielding easily withstands the heat generated during forced helium drying which allows tungsten poly shielding to remain in place during the dewatered phase. Tungsten poly shielding material moderates and attenuates both fast and intermediate neutrons while the outer tungsten poly layer eliminates primary and secondary gamma rays. The lightweight design allows access to the weld locations without disturbing the majority of the shield package. 80-95% reductions in exposure rates have been achieved in field applications.
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Tungsten Copper Rod Cleaning Tips
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- Category: Tungsten Information
- Published on Friday, 12 June 2015 17:32
- Written by limei
- Hits: 398
Tungsten copper rod has now been used in aviation, electronics, electricity, metallurgy and other industries, understanding tungsten copper rod cleaning tips is is very necessary which is helpul to improve the performance of tungsten copper rod,. Tungsten copper rod cleaning tips mainly in the following points:
First, tungsten copper rod cleaning tips embodied in the degreasing work. Skim work before cleaning tungsten copper rod can be very good to improve the surface quality of tungsten copper rod and improve its resistance to corrosion. Skim is a very critical step, the first step is cleaning work, if degreasing is not good, it will affect the overall results of tungsten copper rod cleaning.
Secondly, tungsten copper rod cleaning tips embodied in lye degreasing cleaning tungsten copper rod. Alkaline degreasing good cleaning surface active agents, there good removal effect of organic lubricants, has now been widely used in various industries.
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The Classification of Nuclear Logging Tungsten Radiation Shield
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- Category: Tungsten Information
- Published on Friday, 12 June 2015 17:35
- Written by wenjing
- Hits: 461
Due to its high density, excellent absorption behaviour against radiation and environmental friendly characteristics, tungsten alloy is the best choice to produce nuclear logging tungsten radiation shield. Nuclear logging tungsten radiation shields can be divided into gamma rays tungsten radiation shield and neutron tungsten radiation shield.
Gamma rays tungsten radiation shields are usually used to discuss as electromagnetic radiation, for nuclear logging they are treated as photons—classical particles.
Neutron tungsten radiation shield can be used in oil exploration, and undersea exploration. Neutron tungsten radiation shield also can be set in logging or exploration boron, copper, silver, manganese, tungsten, mercury, rare-earth elements, and other minerals.
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Tungsten Copper Rod Application
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- Category: Tungsten Information
- Published on Friday, 12 June 2015 17:30
- Written by limei
- Hits: 325
Tungsten copper rod is made of tungsten copper alloy, because of a series of significant advantages, areas of tungsten copper rod application are very broad. Tungsten copper rod application mainly reflects in the following aspects:
1. Resistance welding electrode: Tungsten copper rod fully due to the high hardness, high melting point, anti-adhesion characteristics have tungsten, so often used to do a certain wear resistance, high temperature projection welding, butt welding electrode.
2. High-voltage discharge electrode: Tungsten copper rod used as a high-voltage vacuum discharge tube at work, the contact material in a fraction of a second temperature rises several thousand degrees Celsius, while tungsten and copper ablation resistance, high toughness , good electrical conductivity, thermal conductivity performance to the discharge tube to provide the necessary stability conditions.
3, High-performance materials for aerospace:Tungsten copper rod has a high density, transpiration cooling performance, high temperature strength and resistance to erosion erosion and other properties, is used in the aerospace industry, missile, rocket nozzle throat insert, gas rudder components, air rudder, hoods and weight and so on.
4, EDM electrode:Tungsten copper rod has high electrical corrosion rate is used as EDM electrodes, low loss rate, precise electrode shape, excellent processing performance, are good workpiece surface quality advantages WC.
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