Technical Ceramic components for photovoltaic solar industry
Time: 2019-03-05 Writer: mingrui
Technical Ceramic components for photovoltaic solar industry
Technical ceramics has the superior strength, hardness, insulation, thermal conductivity, high temperature resistance, oxidation resistance, corrosion resistance, abrasion resistance, high temperature strength and so on characteristics, therefore, in a very harsh environment or under the condition of engineering application, shows a high stability and excellent mechanical properties, in the photovoltaic industry has been high-profile, is expanding its use.And the global solar photovoltaic industry for high precision, high abrasion resistance, high reliability of mechanical components or electronic components increasingly stringent requirements, so the demand for ceramic products is very important, its market growth rate is considerable.
Photovoltaic solar marketing
The global photovoltaic market is becoming decentralized. Fluctuations in one market may cause some fluctuations in the photovoltaic industry chain, but it is far from a wintry impact. More and more emerging markets begin to invest in photovoltaic, and the industry is gradually getting rid of subsidies and relying on market driving force for growth.By 2020, China, the us, India and the world are expected to add 75GW, 22GW, 25GW and 151GW.The domestic compound growth rate reached 21.43% and the global compound growth rate reached 18.42%.
From 2018 to 2020, the new installation demand of about 52GW in the us still exists, and the us market still has great potential development space in the medium and long term.
Photovoltaic industry chain
The upstream of the photovoltaic industry chain is the collection of crystal silicon raw materials and the processing and production of silicon rods, silicon ingots and silicon wafers; the middle of the industry chain is the production of photovoltaic cells and photovoltaic cell modules; the downstream of the industry chain is the photovoltaic applications, including the integration and operation of power station systems
photovoltaic solar Ceramic components materials
Structural ceramics are advanced ceramics with excellent mechanical, thermal and chemical properties, such as high temperature resistance, erosion resistance, corrosion resistance, high hardness, high strength and low creep rate.
Ceramic components materials category:
The main component of alumina ceramics is Al2O3, and the general content is more than 45%.Alumina ceramics have various excellent properties.Can generally be to 1600 ℃ high temperature resistant, use for a long time, corrosion resistance, high strength, its strength is 2 ~ 3 times of ordinary ceramic, up to 5 ~ 6 times higher.
Silicon nitride ceramics is the main component Si3N4, this is a kind of high temperature and high strength, high hardness, wear resistance, corrosion resistance and can be self lubrication of high temperature ceramic, linear expansion coefficient of minimum in all kinds of ceramic, using temperature as high as 1400 ℃, with excellent corrosion resistance, except hydrofluoric acid, other kinds of acid corrosion, and alkali resistance, all kinds of metal corrosion, and it has excellent electrical insulation and radiation resistance.
Silicon carbide is the main component SiC ceramic, it is a kind of high strength, high hardness, high temperature resistant ceramic, in 1200 ℃ ~ 1400 ℃ using can still maintain a high bending strength, is the highest high temperature strength of ceramics, silicon carbide ceramics also has good thermal conductivity, oxidation resistance, electrical conductivity and high impact toughness.
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