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Public Disclosure of Pollutant Discharge Information
Basic information of the pollutant discharge unit, emissions of air pollutants, emissions of water pollutants, noise emission information, and solid waste emission information.
11
2022
/
07
COVID-19 Prevention and Control and Enterprise Resumption Organization Management in 2020
2020
02
Sapphire technology is diversifying, and the Czochralski method is gradually becoming the market mainstream.
1. Overview of the Sapphire Industry Sapphire crystals have very stable chemical properties, characterized by a high melting point (2050°C), great hardness (Mohs hardness of 9, second only to diamond), and excellent transparency, thermal conductivity, and electrical insulation. They also possess good mechanical properties, wear resistance, and erosion resistance, along with outstanding optical and physicochemical characteristics. Therefore, sapphire is an extremely important basic material in the microelectronics and optoelectronics industries, widely used in various fields such as semiconductors, microelectronics, optoelectronics, information display, optical communication, lasers, precision machinery, and national defense and military applications. With the development of science and technology,
21
2019
Why is the application market for Hengjing New Materials' high-purity alumina becoming increasingly broad?
High-purity alumina refers to alumina with a purity level higher than 99.9% (5N). It is a valuable high-value product that can be widely used in a range of applications, such as high-performance electronics, tablets, smartphones, and computer screen backlighting; LEDs and hybrid vehicles. High-purity alumina is a special type of alumina known for its excellent hardness, high brightness, electrical insulation (non-conductive), super wear resistance, high corrosion resistance, and high-temperature resistance. It is used in automatic sensor applications, such as alumina substrates, due to its outstanding electrical insulation properties and high heat resistance. Due to its high level of plasma corrosion resistance, high-purity alumina is also used in semiconductor components. Although high-purity alumina is applied in a variety of markets, reports indicate that over 60% of high-purity alumina is used in the LED industry. Reports state that the global production of high-purity alumina is 15,000 tons per year, with an expected compound annual growth rate of about 7%, driven by demand from the LED market. The price of high-purity alumina ranges from $30 per kilogram to $300 per kilogram, depending on its purity level, particle size, and structure. Shandong Hengtong Crystal Materials Co., Ltd.
10
2018
12
New Applications of High Purity Alumina by Hengjing New Materials
The new applications of high-purity alumina from Hengtong Crystal In recent years, high-purity alumina has expanded its role beyond being a raw material for electrolytic aluminum. Internationally, the development of high-purity alumina has been particularly rapid, with a wide range of applications. High-purity alumina appears as a white micro-powder, with uniform particle size, easy dispersion, and stable chemical properties. It also has moderate high-temperature shrinkage performance and good sintering performance conversion rate, with relatively low sodium content. This product is a basic raw material for producing heat-resistant, wear-resistant, and corrosion-resistant products. The applications of high-purity alumina also include its use in translucent alumina sintered bodies, as a carrier for phosphors, as an additive for special gases, and in sapphire production.
