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Research on nano aluminum nitride in thermal conductive plastics

1. Heat-conducting silica gel and epoxy resin: Ultra-high thermal conductivity nano-aln composite silica gel has good thermal conductivity, good electrical insulation, wide electrical insulation service temperature (working temperature -60℃- 200℃), lower consistency and good construction performance. Products have reached or exceeded imported products, because can replace similar imported products and widely used in electronic devices heat transfer medium, improve work efficiency. Such as CPU and radiator gap, high-power audion, thyristor element, diode, and the substrate contact with the thin seam [...]

Thermal and optical properties of nanometer tin oxide

In terms of thermal properties, nano SnO2 can be attributed to an ATO raw material, and its heat insulation mechanism: The SnO2 crystal has a regular tetrahedral rutile structure, and the anion coordination number is 6∶3. Each tin ion is adjacent to 6 oxygen ions, and each oxygen ion is adjacent to 3 tin ions. After antimony doped ions in SnO2, occupy the position of the lattice Sn4 +, forming a positive charge one price center SbSn and an extra [...]

Types and applications of zirconium oxide materials

Zirconium oxide is a kind of high temperature resistance, corrosion resistance, wear resistance and good electrical conductivity of inorganic non-metallic materials, that should be used for refractory material field in the early 1920 s, until the mid – 1970 – s, Europe and the United States, the advanced countries in the world have had the same person research and development of zirconium oxide production technology and zirconium oxide series products production, further to expand application field of zirconium oxide [...]

Select bismuth titanate specific work introduction

Bil2Ti020 material was prepared by solution hydrothermal method. Crystals with graded structure such as micron ball, micron flower, nanorod and nanowire were synthesized. For controllable morphology, this paper analyzes the reaction temperature, reaction time, pH and PVA concentration on Bil2Ti020 morphology and structure, the influence of the reaction parameters of the material controllable morphology, proposed the nanoparticles a micron spend a growth mechanism of nanowires – micro ball and focuses on the material of optical and light catalytic properties. [...]

China rare earth polishing powder industry status and development

1. The development course People in rare earth polishing powder before the main iron oxide polishing glass, because the cerium oxide has the unique physical and chemical properties, are widely used in glass surface polishing gradually: the United States and Canada in 1944 launched the first generation of rare earth polishing powder, Japanese companies since the 1950 s production of rare earth polishing powder, our country started in 1958 to develop rare earth polishing powder, then gansu rare earth company [...]

OLED material types and international manufacturers

The “big five” class of materials that make up OLED Introduction: there are many kinds of OLED materials, including anode materials, cathode materials, buffer layer materials, carrier transport materials and luminous materials. 1. Anode materials The anode material of OLED is mainly used as the anode of the device, and its work function is required to be as high as possible to improve the injection efficiency of the holes. OLED devices require one side of the electrode to be transparent, so transparent [...]

Application range of metal powder

Metallic powders can be used as raw materials of powder metallurgy products or directly applied. Used as raw material for powder metallurgy products The main metal powders used in this field are iron, tungsten, molybdenum, copper, cobalt, nickel, titanium, tantalum, aluminum, tin, lead and so on. Direct application The direct application of metallic powders is very extensive. Such as: Welding rod, flame cutting process with iron powder. (2) spraying, spray welding, welding ni-cr-b-si, fe-cr-b-si, co-cr-w and other alloy powder and nickel-clad aluminum or aluminum oxide, [...]

The content distribution of vanadium

Vanadium is found all over the world. There is not much vanadium in the earth’s crust. On average, there is one atom of vanadium in 20,000 atoms, more than copper, tin, zinc and nickel. Vanadium is found in seawater, in sea urchins and other Marine organisms, in magnetite, in a variety of bituminous minerals and coal ash, in meteorites falling to earth and in the spectral lines of the sun. Vanadium is a trace element widely distributed on the [...]

Decomposition of rare earth concentrate

Rare earth concentrate in the rare earth, generally insoluble in water carbonate, fluoride, phosphate, oxide or silicate and other forms. Must be through a variety of chemical change to rare earth into soluble in water or inorganic acid compounds, after dissolving, separation, purification, concentration and calcination process, made all kinds of mixed rare earth compounds such as mixed rare earth chloride, as a product or separation of single rare earth materials, such a process known as decomposition, also known [...]

Present situation and development direction of strontium industry in China

Keywords: strontium, strontium chloride, strontium carbonate With magnesium, calcium, barium strontium Ⅱ for A family of elements, is A kind of soft silvery white metal, 2.6 g/cm3 density, melting point 769 ℃, boiling point 1384 ℃, + 2 valence. Strontium is a reactive chemical that burns red when heated to the melting point in air and is readily reacted with water and acids to give off hydrogen. Strontium and its compounds have been widely used since 1808, when the British chemist [...]