1. Product Structure and Structural Quality
1.1 Alumina Content and Crystal Stage Advancement
( Alumina Lining Bricks)
Alumina lining blocks are dense, crafted refractory porcelains mostly composed of aluminum oxide (Al â‚‚ O FOUR), with material commonly ranging from 50% to over 99%, directly affecting their efficiency in high-temperature applications.
The mechanical toughness, rust resistance, and refractoriness of these blocks increase with greater alumina focus due to the development of a robust microstructure dominated by the thermodynamically steady α-alumina (diamond) phase.
Throughout production, precursor products such as calcined bauxite, integrated alumina, or synthetic alumina hydrate go through high-temperature firing (1400 ° C– 1700 ° C), promoting stage transformation from transitional alumina types (γ, δ) to α-Al Two O ₃, which displays outstanding solidity (9 on the Mohs range) and melting point (2054 ° C).
The resulting polycrystalline framework includes interlacing corundum grains embedded in a siliceous or aluminosilicate lustrous matrix, the composition and volume of which are thoroughly managed to stabilize thermal shock resistance and chemical toughness.
Minor additives such as silica (SiO TWO), titania (TiO TWO), or zirconia (ZrO â‚‚) might be presented to customize sintering behavior, improve densification, or improve resistance to particular slags and changes.
1.2 Microstructure, Porosity, and Mechanical Integrity
The efficiency of alumina lining blocks is critically based on their microstructure, particularly grain size circulation, pore morphology, and bonding stage characteristics.
Ideal bricks exhibit great, evenly distributed pores (shut porosity liked) and very little open porosity (
Alumina Technology Co., Ltd focus on the research and development, production and sales of aluminum oxide powder, aluminum oxide products, aluminum oxide crucible, etc., serving the electronics, ceramics, chemical and other industries. Since its establishment in 2005, the company has been committed to providing customers with the best products and services. If you are looking for high quality alumina a, please feel free to contact us.
Tags: Alumina Lining Bricks, alumina, alumina oxide
All articles and pictures are from the Internet. If there are any copyright issues, please contact us in time to delete.
Inquiry us
