Silicon!!!!!

silicon
Crystalline black silicon carbideis dark blue, very crisp, is a typical semiconductor.Chemical properties are very stable.At room temperature, to eliminate hf，Outside, it is difficult to react with other substances.
The purpose of the silicon:(1) of high purity silicon is important semiconductor materials.In the first IIIA monocrystalline silicon containing trace elements, the formation of p-type silicon semiconductor;With traces of the first VA group elements, formation of n-type and p-type semiconductors together, can make the solar cell, transform radiant energy
Into electrical energy.In the development of energy is a kind of promising material.
(2) metal ceramic, important material of space travel.Mix of ceramic and metal sintering, made from metal ceramic composite materials, it is high temperature resistant
, rich toughness, can cut, both inherited the respective advantages of metal and ceramic, and compensate for birth defects of the two.Can be applied to
Military weapons made the first space shuttle "Columbia" through dense atmosphere can resist high speed friction produced by high temperature, full
To rely on it that thirty-one thousand pieces of silicon watts spells build by laying bricks or stones into the shell.
(3) optical fiber communication, the latest modern methods of communication.With pure silica control the transparency of glass fibers, laser on the glass
Fibre channel, total reflection forward transmission, the countless times to replace the heavy cable.Optical fiber communication capacity is high, that a human hair
Thin glass fiber, 256 phone, can transmit at the same time it also without electricity, magnetic interference, not afraid of hacking, has a high degree of confidentiality
.Optical fiber communication will make the 21st century, the human life has a revolutionary change.
(4) performance of organic Black silicon carbidecompounds.For example, organic silicon plastic is an excellent waterproof coating material.The walls in the underground railroad spraying organic
Silicon, can solve the water seepage problems.In the ancient cultural relics, sculpture, appearance, apply a thin layer of silicone plastic, can prevent
Moss breeding, resist the wind rain and weathering.The monument to the people's heroes in tiananmen square, is through organic silicon plastic processing
Surface, so white, pure and fresh forever.

What industry with silicon powder usage biggest ~!

The prospect of Silicon carbidepowder industry later?
We look at from the following several aspects: the international market space, the world demand for silicon powder 100000 tons.day
This is the largest country in the production of epoxy powder coating material production in the world, the demand for silicon powder 30000 tons, all rely on imports.The annual demand
Silicon powder 20000 tons;South Korea's demand for silicon powder 10000 tons.Domestically, according to concerning sectional statistic, high purity 300 mesh, 1000 mesh
Micro silicon powder and ultrafine crystalline silicon powder consumption at home and abroad every year in 20% - 35% of the increase, with the enlargement of the range of application
Volume growth will continue to increase.Molten class of 2001, China's total consumption of 18000 tons, 12000 tons of imports, in 2004 total amount 78000
Tons, with imports of 48000 tons, the total amount of this year is expected to exceed 100000 tons, has imported 25000 tons in the first half of the year.Silicon micro technology field
Annual demand for 20000 tons of powder. it is presumed that the domestic demand for type molten silicon powder, 15, 2010-2010
Tons;In terms of electronic products, the demand for crystalline silicon powder, the annual demand is expected to exceed 700000 tons;In the fused silica ceramics
Surface, the domestic demand for black silicon carbidepowder in will reach 30000 tons, the wide prospect of market.It is understood that the silicon powder mainly in high-end products
Rely on imports.With China's accession to the WTO market, as well as the rapid development of China's IT industry, electronic packaging in the industry will gradually move to
Countries.Experts predicted: the new century China will become the world's superpower encapsulation, high-purity ultrafine silica powder and other downstream products market will be over
The expanded.Is profit space, though with silicon powder products, but the price is a far far, such as ordinary silicon powder is only 600 yuan / 300 courses
8000-8000 tons. And ultrafine high-purity electronics for micro powder price is as high as 100000 yuan/ton, if you upgrade to nanoscale
Molten micro powder tons price is higher more than 200000 yuan/ton.Product upward development space in our country the relevant units and successfully developed electronic levelHigh-purity ultrafine silica powder.This is a market attractive electronic materials products.High-purity ultrafine silica powder is large-scale integrated electricity subgrade
Board and electronic packaging materials of the main raw material, it combined with epoxy resin to complete chip or adhesive sealing components.Ultrafine silica powder
In the epoxy resin mixed ratio determines the thermal expansion coefficient of the substrate.The higher the proportion of silicon powder, thermal expansion coefficient of the substrate
Small, that is, the closer it gets to the thermal expansion coefficient of silicon wafer, which can avoid uneven expansion caused by damage to the micro line.Therefore, the silicon
The purity of powder, fineness and particle size distribution have strict requirements.Enterprise instance above analysis it can be seen that the silicon powder has the attractive
Market prospect and wide development space.With the development of new and high technology, more and more high to the requirement of micro silicon powder materials, the enterprise can be completely
Based on the needs of the market, less investment, adjust product structure, develop the deep processing products, in order to improve the competitiveness of the enterprises
But these should have a necessary premise - science and technology innovation.Only rely on science and technology to develop high-tech products, to make empty market
Between the development and form a virtuous circle.

Green silicon carbide is what, how is it made of

Green silicon carbide is a petroleum coke and the high quality silica as the main raw material, adding salt as additive, via high temperature electric resistance furnace smelting.Its hardness is between fused alumina and diamond, mechanical strength is higher than fused alumina.

Silicon carbide purpose

Black silicon carbide semiconductor can handle "extreme environment", it is alleged that silicon carbide wafer can withstand even Venus or near the sun's heat. Previous studies show that even at a temperature of 560 degrees Celsius, silicon carbide wafer in the absence of cooling device is still functioning normally. calcium siliconwafer has wide applied prospects in the field of communication, can let the high-definition TV transmitters provide a clearer signal and image; Also can be used in jet and automobile engine, monitoring the motor running. At the same time, it also can be used in the field of space exploration, help nuclear-powered spacecraft perform more complex tasks. French physicist predicted that in the field of chip manufacturing silicon carbide replace silicon has been far too.