Low-temperature 97% Al2O3 porcelain powder

Abstract

The invention provides 97 percent low temperature AI2O3 ceramic powder, and according to weight percentage, the ceramic powder consists of the following components: 96 percent to 98 percent of Alpha-AI2O3, 0.5 percent to 1.5 percent of kaolin, 0.5 percent to 1.5 percent of talcum powder, 0.2 percent to 0.4 percent of La2O3, 0.1 percent to 0.3 percent of SrCO3, 0.1 percent to 0.3 percent of ZnO, and 0.05 percent to 0.15 percent of CaTiO2; the purity of the Alpha-AI2O3 is more than or equal to 99.8 percent, and the average grain size thereof is 1 to 2 Mum; the purity of the La2O3 is more than or equal to 99.99 percent; the adoption of the 97 percent low temperature AI2O3 ceramic powder of the invention can reduce the sintering temperature of AI2O3 ceramics. improve the baking density of the AI2O3 ceramics, and is beneficial to energy conservation and emission reduction.

Description

technical field [0001] The present invention relates to an Al 2 o 3 Ceramic sintering raw material, specifically, involves a 97% low-temperature Al 2 o 3 porcelain powder. Background technique [0002] Al 2 o 3 Ceramic is a new type of material with the most stable chemical properties and the highest mechanical strength among oxides. Its advantages are: excellent high-temperature mechanical properties, chemical corrosion resistance, high-temperature oxidation resistance, wear resistance, and small specific gravity (about 1 / 3); thus, Al 2 o 3 Ceramics gradually replace expensive ultra-high alloy steels in many occasions, or are applied to occasions where metal materials are simply not suitable, such as engine cylinder liners, bearing bushes, sealing rings, textile wear-resistant parts, ceramic cutting tools, etc.; in addition, Al 2 o 3 Ceramics have the advantages of excellent electrical insulation properties and low dielectric loss. Therefore, they also have a very...

AI Technical Summary

Problems solved by technology

[0004] Establishing a scientific outlook on development, saving energy, reducing emissions, reducing energy consumption, and building a conservation-oriented society are new requirements put forward by the 17th National Congress of the Communist Party of China. They are all eliminating outdated equipment and processes, promoting technological progress, and accelerating the pace of energy conservation and emission reduction; the Al2O3 ceramic industry also has backward technology and The problem of high consumption and low economic benefits urgently needs to solve the ceramic production process, reduce the temperature of the porcelain, and obtain high-performance porcelain bodies. It is necessary to start from the raw materials and manufacture new synthetic ceramic materials.