1. Štruktúra materiálu a konštrukčná charakteristika
1.1 Obsah oxidu hlinitého a vývoj kryštálovej fázy
( Obkladové tehly z oxidu hlinitého)
Alumina lining blocks are thick, crafted refractory ceramics mainly composed of aluminum oxide (Al two O SIX), with content typically varying from 50% to over 99%, directly influencing their efficiency in high-temperature applications.
The mechanical strength, odolnosť proti korózii, and refractoriness of these bricks enhance with higher alumina focus as a result of the advancement of a durable microstructure dominated by the thermodynamically secure α-alumina (diamond) stage.
During manufacturing, precursor products such as calcined bauxite, integrated alumina, or artificial alumina hydrate go through high-temperature shooting (1400 °C– 1700 °C), advertising stage transformation from transitional alumina kinds (c, d) to α-Al Two O THREE, which displays phenomenal solidity (9 on the Mohs range) and melting factor (2054 °C).
The resulting polycrystalline structure contains interlocking corundum grains embedded in a siliceous or aluminosilicate glassy matrix, the make-up and quantity of which are thoroughly regulated to balance thermal shock resistance and chemical toughness.
Small ingredients such as silica (SiO₂), titania (TiO ₂), or zirconia (ZrO ₂) may be introduced to change sintering habits, boost densification, or enhance resistance to certain slags and fluxes.
1.2 Microstructure, Porosity, and Mechanical Integrity
The efficiency of alumina lining blocks is seriously dependent on their microstructure, especially grain size distribution, pore morphology, and bonding phase attributes.
Optimum bricks display great, consistently distributed pores (closed porosity chosen) and very little open porosity (
Spoločnosť Alumina Technology Co., Ltd sa zameriava na výskum a vývoj, výroba a predaj práškového oxidu hlinitého, produkty oxidu hlinitého, téglik z oxidu hlinitého, atď., obsluhu elektroniky, keramika, chemický a iný priemysel. Od svojho založenia v r 2005, spoločnosť sa zaviazala poskytovať zákazníkom tie najlepšie produkty a služby. Ak hľadáte vysokú kvalitu oxid hlinitý al2o3, neváhajte nás kontaktovať.
Tagy: Obkladové tehly z oxidu hlinitého, oxid hlinitý, oxid hlinitý
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