Analysis of the status quo of the development of industrial ceramics in China

The development of fine ceramics industry in China is in an upward trend, but there are still some differences in technology from abroad. However, with the country's support for fine ceramics and the development of science and technology, my country's fine ceramics industry will develop better and better. Below is Guangdong Hosen's analysis of this industry. Due to its excellent properties, fine ceramics are widely used in the fields of national defense, chemical industry, metallurgy, electronics, machinery, aviation, aerospace, and biomedicine. They have become an important key material for the development of these fields and have attracted great attention from industrialized countries. , Its development also affects the development and progress of other industries to a large extent. This article will briefly introduce the general situation of fine ceramics at home and abroad, and list some of the fine ceramic materials and preparation technologies developed in my country during the 13th Five-Year Plan. Industry status and problems 1. Industry status: global status: At present, the development trend of rapid advancement of fine ceramic technology, broadening of application fields and stable market growth in the world is obvious. Due to high technical barriers, the fine ceramic industry has long been monopolized by Japan, the United States and some European companies with unique technologies. Among them, Japan is a large producer of fine ceramics, with a complete range, large output, wide application fields, and excellent overall performance. It occupies a position in the ceramics market, especially the electronic ceramics market. In addition, EU countries, especially Germany and France, have conducted research in the field of structural ceramics, mainly in the fields of power generation equipment, new energy materials, and ceramic devices in engines. 2. Current status of domestic industry: my country has conducted research and development on almost all industrial fine ceramic materials, and has undergone 'sixth five-yearOverview of the development of ceramic material preparation technology in my country: In terms of powder preparation, the preparation methods of ceramic powder in my country mainly include solid-phase reaction method, liquid-phase reaction method and gas-phase reaction method. With the development of technology, the powder produced by the gas phase reaction method has the characteristics of large surface area, high sphericity, and narrow particle size distribution, which provides a basic guarantee for the preparation of high-performance chinaware ceramic. In terms of forming technology, the main forming technologies used in my country's fine ceramic industry include cold isostatic pressing in dry press forming, injection forming in plastic forming, tape casting in slurry forming, and gel injection molding. In terms of sintering technology, my country's fine ceramics industry mainly uses hot press sintering (HP) and pneumatic sintering (GPS) technologies. The domestic technology has broken through the foreign technology blockade in large-size pressure sintered silicon nitride chinaware ceramic and realized the localization of technology. In terms of ceramic processing technology, processing technologies such as EDM, ultrasonic processing, laser processing and chemical processing have gradually been applied to ceramic processing.

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