Specifications

Excellent Electrical Insulation
Good insulation
Wear resistance
Heat resistance

Specifications

alumina ceramic

1.High dielectric strength

2.Excellent electrical resistance

3.Abrasion resistance

4.High electric

Alumina Ceramic

Item:Textile ceramic ,mechanical ceramic ,electrical ceramic

Ceramic insulator

Industrial Ceramics

Electrical Ceramics

Technical Ceramics

Specification:

High at elevated temperatures

High dielectric strength

Excellent electrical resistance

Abrasion resistance

High electrical insulation

Application :

 

Electric appliance industry

Automotive industry

Mechanical industry

Engineer industry

Name	Unit	Alumina			Zirconia
Content	%	>= 95	>=99	>= 99.7	>= 94
Density	g/cm*3	3.65	3.80	3.90	6.00
Hardness (Hv0.5)	Gpa	13.1	15.0	17.1	13.2
flexural strength	Mpa>=	340	310	370	1000
Elasticity	Gpa	300	330	350	200
. Poisson's ratio		0.23	0.23	0.23	0.30
Max Tem	C>=	1400	1750	1800	1050
Heat expansion	×10-6/°C(40-800°C)	7.8	8.0	8.0	11.0
Thermo conductivity	W/m·K( 20°C)	22	28	31	2.6
Thermal Resistance	°C	200	200	230	300
dielectric strength	V/m	15×106	15×106	15×106	11×106
dielectric phase angle (1MHz)	×10-4	4	2	1	16
SIC(1MHz )		9.2	9.8	9.9	33
Nitric Acid (60%)90°C	WT Loss mg/cm2/day≤	0.12	0.10	0.05	≠0
Sodium hudroxide(30%)80°C	WT Loss mg/cm2/day≤	0.53	0.260	.0.04	0.08