Product Details

High Purity Al2o3 High Temperature Casting Alumina Ceramic Crucible 99

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

corundum crucible include: arc alumina crucible, square alumina crucible, rectangle alumina ceramic crucible,

column ceramic crucible and a variety of shaped alumina ceramic crucible.

Features:

1. High purity: Al2O3>99%, high chemical etching resistance;

2. Temperature tolerance, at 1600°C for long term application, and at 1800°C for short term application;

3. Resistant to sudden cold and hot, un-explosive;

4. High density of slip casting, high purity alumina crucible, specifications of 99% corundum crucibles: 5ml 10ml

15ml 20ml 25ml 30ml 50ml 100ml 150ml 200ml- 2500ml.

High purity alumina products can withstand very high temperature under reducing,inert or high vacuum condition.

They remain good chemical resistance under high temperature and have excellent wear and abration resistance.

Alumina products can withstand up to 1750C.

Comparison and analysis:

Properties	Unit	Steatite ceramic	95% Al2O3	99% Al2O3	Zirconia Ceramic
Density	g/cm³	2.7	3.6	3.8	5.6
Flexural strength	Mpa	145	300	300	354
Hardness	Gpa	5.7	7	10.7	12.3
Elastic modulus	Gpa	120	275	320	205
Poissons ratio	-	0.21	0.22	0.22	0.30
Linear expansion coefficient	x 10^-6/℃	7.9	7.1	7.8	9
Thermal conductivity	w/(m.k)	2.5	20	25	2.5
Specific Heat	10^-3J/(kgK)	0.75	0.78	0.78	0.4