1. Material Structure and Structural Characteristic
1.1 Alumina Material and Crystal Phase Development
( Alumina Lining Bricks)
Alumina lining blocks are dense, crafted refractory ceramics largely composed of aluminum oxide (Al two O FIVE), with content normally varying from 50% to over 99%, directly affecting their efficiency in high-temperature applications.
The mechanical stamina, rust resistance, and refractoriness of these bricks boost with greater alumina focus due to the development of a durable microstructure controlled by the thermodynamically secure α-alumina (corundum) stage.
During production, forerunner materials such as calcined bauxite, fused alumina, or synthetic alumina hydrate undergo high-temperature firing (1400 ° C– 1700 ° C), promoting phase improvement from transitional alumina forms (γ, δ) to α-Al â‚‚ O ₃, which shows extraordinary solidity (9 on the Mohs range) and melting factor (2054 ° C).
The resulting polycrystalline framework consists of interlacing corundum grains installed in a siliceous or aluminosilicate glazed matrix, the composition and quantity of which are very carefully managed to stabilize thermal shock resistance and chemical longevity.
Small ingredients such as silica (SiO â‚‚), titania (TiO â‚‚), or zirconia (ZrO â‚‚) might be presented to modify sintering actions, improve densification, or boost resistance to certain slags and changes.
1.2 Microstructure, Porosity, and Mechanical Honesty
The efficiency of alumina lining bricks is critically depending on their microstructure, especially grain dimension circulation, pore morphology, and bonding stage characteristics.
Optimal blocks show great, evenly dispersed pores (closed porosity favored) 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 kyocera alumina, 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