high insulation alumina electronic ceramics

High insulation alumina electronic ceramics Specifications:
1) Material:
a) 95% Al2O3
b) 99.5% Al2O3
c) ZrO2
2) Surface finish:
a) Normal polish Ra 08-1.0μm
b) Fine polish Ra 0.4-0.6μm
c) Diamond polish Ra 0.2μm   3) Properties:
a) Wear resistant
b) Corrosion resistant
c) Heat resistant .
d) Stable dimensions
e) Lightweight ,
f) Long performance life. high insulation alumina electronic ceramics Technical Parameter of Alumina.

Material	——	AI-920	AI-950	AI-990	AI-997	AI-999
Texture	——	Al2O3	Al2O3	Al2O3	Al2O3	Al2O3
		>92%	>95%	>99%	>99.7%	>99.9%
Density	g/cm³	3.5	3.60	3.9	3.92	3.92
Bending strength	Mpa	300	330	340	390	390
Compressive strength	Mpa	3400	3600	3800	3900	3900
Elasticity modulus	Gpa	350	350	370	390	390
Impact resistance	Mpam½	4.2	4.0	4.4	5.2	5.5
Weibull Modulus	m	11	10	10	12	12
Vickers Hardness	HV 0.5	1700	1800	1800	2000	2000
Thermal expansion	10^-6K^-1	5.0-8.3	5.0-8.3	5.1-8.3	5.5-8.4	5.5-8.5
Thermal Conductivity	W/mk	18	24	25	28	30
Thermal shock resistance	°C	220	250	250	280	280
Highest Application Temperature	°C	1500	1600	1600	1700	1700

  Company profiles: Suzhou Seamark Fine Ceramics Co.,Ltd. is a professional industrial ceramic parts manufacturer and dealer in China. We have been engaged in ceramic industry for 10 years and made international trade of industrial ceramic import and export for more than 5 years. We attend international advanced ceramic fairs, put in many B2B website and achieve many customers all over the world also build up good reputation from our customers.   Market :North America, South America, Eastern Europe,Southeast Asia,Africa,Oceania , Mid East , Eastern Asia ,Western Europe.   Our range of products: Ceramic rod Ceramic plunger/bushing Ceramic gasket Ceramic sleeve Ceramic Seal ring Ceramic wafer Ceramic Liner Ceramic valve Ceramic nozzle Electronic ceramic parts textile ceramics Other machinable ceramic parts.   Technology and experience accumulated over the years allow us to answer some technical question. from us you can get: • Quick delivery • High precision • Low prices If you need special parts for special machines, Seamark delivers.   Suzhou Seamark Fine Ceramics Co., Ltd
www.smkceramic.com
Ms.Linda Huang
Tel: +86 512 66255075
Fax: +86 512 66255030
Mob: +86 18550512237