1. Product Structure and Structural Properties
1.1 Alumina Material and Crystal Phase Advancement
( Alumina Lining Bricks)
Alumina lining bricks are thick, crafted refractory ceramics largely composed of light weight aluminum oxide (Al ₂ O TWO), with content commonly ranging from 50% to over 99%, straight affecting their performance in high-temperature applications.
The mechanical stamina, deterioration resistance, and refractoriness of these blocks boost with greater alumina focus due to the development of a durable microstructure dominated by the thermodynamically secure α-alumina (diamond) phase.
Throughout production, forerunner materials such as calcined bauxite, fused alumina, or synthetic alumina hydrate go through high-temperature shooting (1400 ° C– 1700 ° C), promoting stage transformation from transitional alumina types (γ, δ) to α-Al ₂ O TWO, which shows phenomenal solidity (9 on the Mohs range) and melting point (2054 ° C).
The resulting polycrystalline framework contains interlocking diamond grains installed in a siliceous or aluminosilicate lustrous matrix, the make-up and volume of which are meticulously controlled to balance thermal shock resistance and chemical toughness.
Small ingredients such as silica (SiO TWO), titania (TiO ₂), or zirconia (ZrO TWO) may be introduced to change sintering actions, improve densification, or boost resistance to details slags and fluxes.
1.2 Microstructure, Porosity, and Mechanical Honesty
The efficiency of alumina lining bricks is seriously depending on their microstructure, specifically grain dimension circulation, pore morphology, and bonding stage attributes.
Optimal bricks display fine, consistently distributed pores (shut porosity liked) and marginal 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 chemicals, 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
Error: Contact form not found.