High Purity Alumina Crucible (Al2O3)

Inquiry

Description

Alumina Crucible is made from alumina, also known as aluminum oxide( AI2O3). Alumina is an ideal ceramic material with high-temperature resistance, chemical stability, and mechanical strength, making it suitable in the form of crucibles and their covers for high-temperature working conditions that demand contamination-free results.

We offer high-quality Al2O3 crucibles with good electrical insulation, excellent corrosion resistance, and excellent thermal shock properties, and also available in many sizes and shapes.

Industrial alumina ceramic crucible is used for testing laboratory and a variety of industrial analysis. Alumina ceramic crucible

include: arc alumina crucible, square alumina crucible, rectangle alumina ceramic crucible, column ceramic crucible and a

variety of shaped alumina ceramic crucible.

Performance
Item		Unit	95 Al₂O₃	96 Al₂O₃	99 Al₂O₃
Physical Characteristics	Bulk density	g/cm³	3.6	3.6	3.9
Physical Characteristics	Water absorption	%	0	0	0
Mechanical Characteristics	Flexural strength	Mpa	320	340	360
	Hardness Vickers	Gpa	12.2	13.5	15.6
	Elastic modulus	Gpa	280	320	370
	Poisson’s ratio	-	0.22	0.23	0.23
Thermal Characteristics	Linear expansion coefficient	(20⁰C-500⁰C) 10^-6/⁰C	7.1	7.2	8
	Thermal conductivity	w/(m.k)	16	24	32
	Specific Heat	10^-3J/(kgK)	0.78	0.78	0.9
Electrical Characteristics	Dielectric constant (1MHZ)	-	9	9.4	9.9
	Dielectric loss angle	*10^-4	15	5	1
	Dielectric strength	*10⁶V/m	12	15	15