High Purity Silicon Nitride Industry Development Analysis
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Update time : 2023-06-16 10:29:49
Features of Silicon Nitride High-purity silicon nitride has the characteristics of high purity and good dispersion and is mainly used in high-end components. In nature, the earth's crust is rich in nitrogen and silicon content, but the natural silicon nitride content is very rare due to the preparation of high-purity silicon nitride in very harsh conditions: preparation temperature requirements are strict, the temperature is too high, silicon nitride easy to decomposition, the temperature is too low, the chemical reaction is incomplete; the purity of the atmosphere requires high, the atmosphere can not be mixed with oxygen, to avoid the combination of silicon and oxygen elements to generate silicon dioxide; nitrogen purity requirements are high The type and amount of additives used in the preparation will directly affect the purity and quality of the silicon nitride product, and strict screening and control are required during the preparation process.
Current Market Analysis of Silicon Nitride At this stage, the use of high thermal conductivity silicon nitride ceramics as substrate materials for electronic devices is still a major challenge. Only a few foreign companies, such as Toshixa and Kyocera, have commercialized silicon nitride ceramic substrates: Toshixa's silicon nitride substrate (TSN-90), for example, has a thermal conductivity of 90 W/(m-k). In China, there is a silicon nitride ceramic substrate material with a thermal conductivity of 80 W/(m-k) and a flexural strength of 750 MPa-m1/2, which has been successfully developed by the Sinoma Institute of Artificial Crystals in Beijing and is similar in performance to Toshixa's commercial silicon nitride products.
The new materials industry is characterized by high risk, high investment, high return, and long lead time, and is different from the traditional service targets of financial institutions, making financing for the new materials industry more difficult. In developed countries, new materials rely on the traditional materials industry, which is already mature in terms of industrial pattern and business model, and has stable financial support for early technology development and industrialization, including banks, government funds, and strategic investors mainly from industrial giants. For China's new materials industry, on the one hand, the overall domestic industrial base is weak, and the investment and financing environment is still immature. On the other hand, as an emerging industry, investors' judgment of the business model and growth value of the new materials industry is not systematic enough, and the investment strategy and investment scale are still relatively conservative.
2023-2027 Market Analysis of Silicon Nitride The production process of high-purity silicon nitride has matured in China, and its preparation methods mainly include direct desalination of silicon powder, carbon thermal reduction, chemical vapor deposition, sol-gel method, thermal decomposition method, and self-propagation high-temperature synthesis method. The direct desalination method uses high-purity silicon powder to react with nitrogen gas at high temperatures to produce silicon nitride powder; the preparation process is mature and is widely used in the chemical industry. The carbothermal reduction method involves mixing carbon with silica and then passing nitrogen gas at high temperatures to produce different products depending on the amount of carbon. High purity, ultra-fine grain, and low-cost silicon nitride powders can be produced using the sol-gel method, but the production equipment is relatively expensive, and the process is complex.
In terms of price, high-purity silicon nitride has followed a tortuous path of decline, from the earliest $2,000/kg to the current $1,000+/kg, with a significant downward momentum. Compared to several large overseas enterprises, domestic silicon nitride enterprises in the production of products to take independent research and development equipment, but also in the price of the "thin profit" model, for the rapid occupation of the market more advantageous. The main competitive factor of high purity silicon nitride is its excellent performance, which can meet the needs of high-end equipment. At present, the domestic high-purity silicon nitride production technology is more mature; technological innovation is difficult to have a large upgrade, the industry is in a mature period, and the market demand is more stable.
Chinese Academy of Sciences on Silicon Institute Zeng Yuping research team successfully developed an average thermal conductivity of 95 W / (m - k), up to 120 W / (m - k) and good stability of silicon nitride tacit, the size of 120 mm × 120 mm, the thickness of 0.32 mm, the shape size can also be adjusted according to actual demand. The rapid development of China's military aerospace, high-speed railway, and other fields has led to a gradual increase in the demand for high-power electronic devices in various scientific and technological industries. In order to adapt to more demanding and complex application conditions, high-power electronic devices must be towards high-temperature resistance, high frequency, low power consumption, and intelligent, systematic, modular direction of development.
High-purity silicon nitride is a special high-temperature structural ceramic material that has gained momentum in recent years, with very stable chemical properties and a wide range of applications. At present, the domestic high-purity silicon nitride industry development is relatively stable; the market demand will remain stable and increase. Industry sources said that high-purity silicon nitride is a special high-temperature structural ceramic material that has gained momentum in recent years because high-purity silicon nitride has good lubricity, wear resistance, thermal resistance, shock resistance, and chemical stability; its products have a wide range of applications. At present, the domestic production process for the preparation of high-purity silicon nitride has matured, and the development of high-purity silicon nitride industry is relatively stable.
Silicon Nitride Powder Price The price is influenced by many factors, such as the supply and demand in the market, industry trends, economic activity, market sentiment, and unexpected events. If you are looking for the latest silicon nitride powder price, you can feel free to send us your inquiry for a quote.
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