1. Product Structure and Structural Quality
1.1 Alumina Web Content and Crystal Phase Evolution
( Alumina Lining Bricks)
Alumina lining blocks are dense, engineered refractory porcelains mainly composed of light weight aluminum oxide (Al two O FOUR), with material usually ranging from 50% to over 99%, straight influencing their performance in high-temperature applications.
The mechanical stamina, rust resistance, and refractoriness of these blocks enhance with higher alumina concentration as a result of the development of a durable microstructure dominated by the thermodynamically secure α-alumina (diamond) phase.
During production, precursor products such as calcined bauxite, fused alumina, or artificial alumina hydrate undergo high-temperature shooting (1400 ° C– 1700 ° C), promoting phase makeover from transitional alumina forms (γ, δ) to α-Al Two O TWO, which exhibits remarkable solidity (9 on the Mohs range) and melting factor (2054 ° C).
The resulting polycrystalline framework contains interlocking corundum grains embedded in a siliceous or aluminosilicate glassy matrix, the make-up and quantity of which are very carefully regulated to balance thermal shock resistance and chemical toughness.
Small additives such as silica (SiO ₂), titania (TiO ₂), or zirconia (ZrO TWO) may be introduced to change sintering actions, boost densification, or improve resistance to specific slags and changes.
1.2 Microstructure, Porosity, and Mechanical Integrity
The performance of alumina lining blocks is seriously depending on their microstructure, specifically grain dimension distribution, pore morphology, and bonding phase features.
Ideal bricks display fine, evenly distributed pores (shut porosity liked) and minimal 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 96, 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