Industrial Electrical Technical Machinery Custom High Heat Resistant Alumina Ceramics Structural Parts

• Application: Aerospace, Architectural, Ceramic Decorations, Electronics, Medical, Refractory
• Purity: 99.5%
• Processing Service: Cutting, Punching, Moulding
• Application1: Industrial Ceramic
• Material: Alumina Ceramic
• Transport Package: Custom Package
• Model NO.: 0001
• Specification: custom
• Trademark: A. N. G
• Origin: Shenzhen
• HS Code: 6903200000
• Production Capacity: 500000

Product Description

Industrial electrical technical machinery custom high heat resistant alumina ceramics structural parts

Alumina Custom Ceramic Parts 

 

 

Alumina ceramics(Al2O3) is the most common technical ceramics material, with very high hardness. The material has excellent
properties in terms of electrical insulation, high thermal conductivity, high chemical resistance, good wear resistance and low
thermal expansion.

 

Features of alumina ceramic

* Relatively low density;
* Extremely high operating temperature;
* Very high hardness and compressive strength;
* Excellent electrical insulation properties;
* Corrosion and wear resistance;
* Biologically inert, food compatibility.

Alumina Ceramic Properties

The following only lists the performance parameters of the three most common aluminum oxide ceramics. Normally, alumina ceramics
are composed of these types.

 

Mechanical Properties

Properties	Unit	95%Al2O3	99%Al2O3	99.5%Al2O3
Colour	--	White	Yellow	Yellow
Density	g/cm³	3.7	3.85	3.9
Hardness	GPa	13.7	15.2	15.7
Compressive Strength	MPa	2000	2160	2350
Flexural Strength	MPa	280	310	350
Fracture Toughness	MPam1/2	3~4	3~4	4.5
Modulus of Elasticity	GPa	320	360	370
Poissons Ratio	--	0.23	0.23	0.23

Thermal Properties

Properties	Unit	95%Al2O3	99%Al2O3	99.5%Al2O3
Maximum Use Temperature	ºC(No load)	1650	1650	1650
Thermal Conductivity @ 20°C	W/(mK)	24	29	32
Thermal Expansion a at 20-400°C	1 x 10-6/°C	7~8	7~8	7~8
Specific Heat	J/(kgK)	780	790	780
Thermal Shock Resistance	ºC(Put in water)	200	200	200

Electrical Properties

Properties	Unit	95%Al2O3	99%Al2O3	99.5%Al2O3
Dielectric Constant	1MHz	9.4	9.9	9.9
Dielectric Strength	V/m	15 x 10 6	15 x 10 6	15 x 10 6
Dielectric Loss	1MHz	4 x 10 -4	4 x 10 -4	4 x 10 -4
Volume Resistivity @ 25°C	Ωcm	>10 14	>10 14	>10 14
Volume Resistivity @ 500°C	Ωcm	>10 8	>10 8	>10 10

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