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Development of Advanced Ceramic Materials Industry (2)
Development of Advanced Ceramic Materials Industry (2) porous ceramics Porous ceramics are ceramic materials with a large number of interconnected or closed pores. They have the advantages of high temperature resistance, corrosion resistance, thermal shock resistance, structural design diversity, and are widely used in the fields of environmental protection, chemical engineering, energy, metallurgy, Construction, electronics and other fields. Porous ceramics were first used on a large scale in the United States and Japan. Its preparation and application technology has developed rapidly and become increasingly mature. There are many types of porous ceramics. Now, honeycomb ceramics, foam ceramics, ceramic membranes, foam ceramics, etc. are the main applications. Among them, Honeycomb ceramics and foam ceramics occupy a very large share in the international market. Transparent ceramic Transparent ceramics are opaque, but optical ceramics are as transparent as glass, so it is called transparent ceramics. Due to its high strength, corrosion resistance, high temperature resistance and other properties of ceramic materials, as well as its excellent optical properties, the transparent ceramic materials industry It has developed rapidly in recent years and the scale of the industry continues to expand. According to statistics, the global value of transparent ceramics depends on the United States...
Development of advanced ceramic materials industry (1)
Development of advanced ceramic materials industry Advanced ceramic materials refer to ceramic materials with excellent performance, which are different from traditional ceramics in terms of raw materials and processes. They are usually made of high-purity and ultra-fine raw materials, through the design of composition and structure, and using precise chemical measurements and new preparation technologies. . The rapid development of this new generation of ceramic materials with special properties has become the cornerstone of the continuous progress of modern science and technology. Advanced ceramic materials can be divided into structural ceramics and functional ceramics according to their uses and properties. Structural ceramics refer to ceramic materials with excellent mechanical, thermal and chemical properties, such as high strength, high hardness, corrosion resistance, wear resistance and high temperature resistance properties, and used in various structural components. Functional ceramics are dielectric materials that can detect, transform, store, couple and transmit information such as electricity, magnetism, sound, light, heat, force, chemistry or biology. Advanced ceramic materials have a wide range of functions and uses, primarily including high temperature Thermal protection, wave transmission, high toughness, ferroelectricity, piezoelectric, dielectric, pyroelectric, semiconductor, electro-optical and magnetic functions, and suitable for electronic information, integrated circuits, computers, automatic control, national...
Market prospects of ceramic matrix composite materials
Market prospects of ceramic matrix composite materials According to a report by Research And Markets, an international market research organization, the global ceramic matrix composites market is expected to grow from USD 1.135 billion in 2021 to USD 1.226 billion in 2022, at a CAGR of 8.05%. The market is expected to grow to USD 1.715 billion The compound annual growth rate in 2026 is 8.75%. Ceramic materials have excellent properties such as high melting point, high hardness, corrosion resistance, and oxidation resistance, and can be used in extreme environmental conditions, so they have been rapidly developed in the field of engineering, especially in the field of aviation, aerospace, automotive, military and other fields. However, the brittleness, mechanical unreliability and low electrical conductivity of ceramics limit their wide application. Introducing second phase materials into ceramic matrix is an effective way to improve the structure and performance of ceramic materials. As a result, ceramic matrix composites emerged. Ceramic matrix composites (CMC Company) are composed of ceramic matrix, reinforcing fibers and interface layers. Fibers are introduced into the ceramic matrix as reinforcing materials to form composite materials with fibers as the reinforcing phase and the ceramic matrix as the continuous phase. Features...
What is high purity quartz?
What is high purity quartz? High-purity quartz is a rare high-tech strategic mineral resource in the world. It is an irreplaceable mineral raw material for manufacturing high-tech quartz glass and a rare universal high value-added mineral resource needed for strategic emerging industries. Based on the opinions of researchers and At the current international technical level, we can call quartz (silica) with a purity of ω ≥ 3 N~5 N and ω (iron 2O3) <10×10-6 as high-purity quartz. 6 N to 7 N is called ultra-pure quartz. High purity quartz. High-purity quartz products are widely used in electric light sources, optical fiber communications, solar cells, semiconductor integrated circuits, precision optical instruments, medical appliances, aerospace and other high-tech industries. It plays an important role in the development of a country’s science and technology and is a Resources of strategic importance. High purity quartz has different application fields according to its content. Among them, content from 99.5% to 99.99% is used in the light source industry, content above 99.99% is used in high-end optical devices and laser devices, and content from 99.995% to 99.9999% is used in semiconductors , photovoltaic and other industries. 1 Semiconductor industry The semiconductor industry is the foundation of...
Traditional solar cell production process
Traditional solar cell production process In the past, we always described the manufacturing principles and silicon wafer processing technology. Today we will introduce the production technology of traditional solar cells. Traditional battery production can be mainly summarized into 6 steps. From the perspective of traditional battery manufacturing process, it can be summarized into the following six steps: 1) Cleaning and texturing, the main purpose is to remove various pollutants adsorbed on the surface of the silicon wafer, and remove the cutting damage layer on the surface of the silicon wafer; The light trapping principle is used to reduce the reflectivity of the battery surface. An uneven surface will increase secondary reflection, change the light path and incident method, increase the absorption of light, increase the short-circuit current, and thereby improve the conversion efficiency of the battery. Among them, due to the different crystal structures of monocrystalline silicon cells and polycrystalline silicon cells, taking into account efficiency factors, polycrystalline silicon cells are made of acid, and the textured surface is an irregular concave and convex surface; Monocrystalline silicon cells are made of an alkaline structure, and the textured surface is a regular pyramid structure; 2) Diffusion, the main purpose is to...
The boom of silicon wafers in the photovoltaic industry
The boom of silicon wafers in the photovoltaic industry Against the background of the carbon neutrality goal and the accelerated application of global clean energy, China’s photovoltaic industry as a whole has achieved rapid growth. According to corporate information and industry standard announcements from industry associations, the main links in the national photovoltaic industry chain have maintained strong development momentum, with a year-on-year growth rate of more than 45%. Among them, polysilicon increased by 53.4% year-on-year, silicon wafers increased by 45.5% year-on-year. Cells increased by 46.6% year-on-year, and modules increased by 54.1% year-on-year. Overseas photovoltaic market demand continues to be strong, and sales and prices have increased. In the first half of the year, module export volume reached 78.6GW, a year-on-year increase of 74.3%, and the total export volume of photovoltaic products was approximately US$2.59 billion, a year-on-year increase of 113.1%. The iteration of photovoltaic technology is accelerating, and the iteration of technical routes has promoted the upgrading of new generations of equipment and increased the value of equipment. Silicon wafers are developing in the direction of large size, and silicon wafers are developing in the direction of thinning. Large silicon wafer equipment will gradually undergo a large number of...

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