Insulating alumina industrial ceramic beads

Insulating alumina industrial ceramic beads enjoy the excellent electrical properties, good insulation and heat resistant.

Insulating alumina industrial ceramic beads

Features:

1) A variety of specifications available.

2) Satisfy various technical request

3) Lower medium spoilage

4) Good insulation performance and high temperature resistance

5) Stiffness texture

6) Used in all electric products and electric heating products

 

Alumina ceramic is kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics. Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products. We can make the part by hot injection pressing, dry pressing, isostatic pressing and extrusion productive technology etc
Item		Unit	95 Al2O3	96 Al2O3	99Al2O3
Physical Characteristics	Bulk density	g/cm3	3.6	3.6	3.9
	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/(kg*K)	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

We can supply the products according to customer's drawings, samples and performance requirement. 

Insulating alumina industrial ceramic beads