C799 Alsint 99.7% Alumina Al2O3 Ceramic Ferrule for Seal Insulation

• Customization: Available
• Application: Aerospace, Architectural, Ceramic Decorations, Electronics, Home Use, Medical, Refractory, Structure Ceramic, Industrial Ceramic
• Purity: 95% 99% Alumina, Al2O3
• Color: White, Ivory, Yellow, Pink, Cream
• Shape: Square, Tubular, Oval, Rectangular, Half
• Use: Thermocouples, Furnace, Temperature Measurement
• Temperature: 1400c, 1500c, 1600c, 1700c, 1800c
• Machining of Ceramic Tube: Drill Hole, Notch or Slot, Flange, Collar, Thread
• Material: Alumina Ceramic
• Transport Package: Plywood Case
• Specification: customized
• Trademark: Yunnuo
• Origin: China
• HS Code: 8547100000
• Production Capacity: 5000000 PCS Per Year

Product Description

Alumina ceramic components

 

Alumina ceramic (Aluminum Oxide or Al2O3) is an excellent electrical insulator and one of the most widely used advanced ceramic materials. Additionally, it is extremely resistant to wear and corrosion. Alumina components are used in a wide range of applications such as electronics, pump components and automotive sensors.

 

Process of production:

uniaxial (die) pressing, isostatic pressing, injection molding, extrusion and slip casting ect.

 

Properties:

* Good electrical insulation
* High mechanical strength
* Excellent wear resistance
* Excellent corrosion resistance
* Low dielectric constant

 

Applicatons:

 

* Special environment and electronic substrates

* Pump seals and other components
* Wear resistant inserts
* Insulating washers or bushings
* Semiconductor components
* Aerospace components
* Automotive sensors
* Electrical or electronic insulators

 

Material data:

 

AL2O3%	60	75	80	85	92	95	99	99.7
Bulk Density (g/cm3)	3.0	3.1	3.3	3.4	3.6	3.7	3.81	3.91
Flexural strength (MPa)	205	280	215.7	230	312	304	340	370
Linear expansion coefficient (×10-6/C)(25-800C)	7.1	7.6	7.6	7.6	7.5	7.3	7.6	7.6
Thermal conductivity [w/(m.R)]	16	17	17	17	18	20	34	35
Dielectric strength (KV/mm)	10	10	10	10	10	10	10	10
Volume resistivity (Ω.cm) 20C	>1014	>1014	>10 14	>1014	>1014	>1014	>1014	>1014
300C	>1013	>1013	>10 13	>1013	>1013	>1012	>1010	>1010
Max C	1350	1100	1300	1350	1500	1600	1700	1800
Moh's hardness	7.5	7.5	7.5	7.5	8.5	8.8	9	9
Refractoriness	1800	1700	1800	1850	1920	2000	2030	2040