What is Calcined Alumina and Its Industrial Applications

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📅 November 09, 2025
⏰ 11:28
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What is Calcined Alumina and Its Industrial Applications

Calcined alumina, also known as alpha alumina, is produced by heating aluminum hydroxide to remove chemically bound water. The resulting material is a high-purity, stable oxide (Al₂O₃) with excellent hardness, thermal stability, and chemical resistance.

Zexi Mineral’s calcined alumina is widely used in ceramics, refractories, and polishing applications. It provides excellent performance in producing high-grade spark plugs, cutting tools, and insulating components.

Main Features:

High purity and consistent particle size

Excellent hardness and chemical stability

Superior thermal shock resistance

Applications:

Advanced ceramics and electronic insulators

Refractory materials for steel and glass industries

Polishing powders and abrasives

Zexi Mineral ensures stable quality through strict production control and provides customized particle size according to customer needs.
What is Calcined Alumina and Its Industrial Applications

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