Alumina Crucible

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Categories Alumina, Ceramics Materials

Additional information

Catalog No.	al0925
Material	Al2O3
Purity	99%, 99.8%
Density	3.8~3.9 g/cm3

Description:

Alumina crucible is a high-performance ceramic vessel made from alumina (Al₂O₃), known for its excellent resistance to high temperatures, corrosion, and mechanical stress. Alumina crucibles are widely used in a variety of industrial applications, particularly in situations requiring material containment during high-temperature reactions or processes. Due to their superior thermal stability, chemical resistance, and mechanical strength, alumina crucibles are commonly employed in laboratories, metallurgy, and chemical processing industries.

Applications:

Metallurgy: Alumina crucibles are widely used in metal casting, refining, and smelting processes, where their high-temperature resistance allows them to hold molten metals like gold, silver, and aluminum.
Chemical Processing: In chemical laboratories and industrial plants, alumina crucibles are used to heat reactive or corrosive substances, as they are resistant to chemical attack and can withstand extreme conditions.
Glass Manufacturing: Alumina crucibles are used in the production of glass and ceramics, where their high thermal conductivity and resistance to thermal shock are essential for holding molten glass or other high-temperature materials.
Laboratory Use: In scientific research, alumina crucibles are used for a variety of applications, including heating and melting substances in high-temperature furnaces, conducting experiments that require precise temperature control, and as containers for chemical reactions.
Furnaces and Kilns: Alumina crucibles are commonly used in furnaces, kilns, and other high-temperature equipment, where their ability to withstand extreme heat and maintain integrity is critical.

Item	Al2O3
Physical Property
Color	Ivory
Density	3.7-3.9g/cm3
Purity	95~99.8
Gas Permeability	0%
Water Absorption	0%
Mechanical Properties
Vickers Hardness	12.3-17.2GPa
Flexural Strength	300-380MPa
Compressive Strength (HV0.5)	2000-2350MPa
Elastic modulus	270-380GPa
Fracture Toughness	3.5-4MPam1/2
Thermal Properties
The Max Working Temperature	1650℃
Thermal Conductivity at room temperature	20-32W/(m·K)
Coefficient of Thermal Expansion	6.5-7.210-6/℃
Thermal Shock Resistance	200△T℃