Alumina Ceramic Insulator

Description

Alumina Ceramic Insulator is made of a ceramic material with Al2O3 as the main crystal phase. SENCER PRECISION CERAMICS can produce ceramic Insulators with an alumina content of 99% to 99.8%. The alumina has a compact structure, low activity, and high-temperature stability. The electrical properties are the best, with good mechanical properties, with a Mohs hardness of 9. With the performance of abrasion resistance, corrosion, and heat resistance, excellent vacuum sealing and heat dissipation enable alumina ceramic insulators are widely used in the auto and vessel, and aircraft industry.

Material Properties:

Composite	(wt %)	99%	99.5%	99.8%
Color		White or Ivory	White or Ivory	White or Ivory
Density	g/cm3	3.82	3.9	3.92
Hardness	HRA	83	85	85
Flexural Strength	Mpa(psi*103 )	375	386	381
Gas Permeability		0	0	0
Water Absorption	%	0	0	0
Thermal Shock Resistance	°C	195	198	198
Thermal Expansion	×10-6/℃	8.2	8.2	8.2
Dielectric Constant,20°C	1MHz	9.6	9.6	9.7
Dielectric loss, tanδ	1MHz	2×1014	1×1014	1×1014
Volume Resistivity,20℃	Ω·cm	≥1014	≥1014	≥1014
Dielectric Strength,DC	Ω·cm	20	20	20
Compressive Strength	KV/mm	2510	2700	2600
Fracture Toughness	MPa( psi * 103)	350	350	350
Poisson’s Ratio	MPa	0.22	0.22	0.22
Thermal conductivity	W/mK	25.8	27	27

Type:

Alumina Ceramic Insulator

Material:

Alumina 99%

Available Color:
White or Ivory

Feature:

High-Heat Resistance, Excellent Insulation Performance. High Corrosion-Resistance, High Wear-Resistance, High Pressure Pressed

Size:

Size Customized, according to customer’s drawing, OEM.

Application:

Industrial ceramic, Technical ceramic.Advanced ceramic.Fine ceramic.

Advantage:

• Tight Tolerances
• Vairous Delivery Options
• 19 more Years Advanced Ceramics Experience
• Fast Delivery
• Multiple producing methods and Sintering methods
• Sample projects available
• Free Molding Charge
• Long lifetime
• Ultrasonic cleaning and dust-free packaging
• Metallization available
• Clean enough for UHV environment

Package:
Carton+Palletize,Carton,bubble paper inside,Wooden Box.Pls let us know if you have any special requirements.

Producing Methods:

Dry pressing with Fine Lapping. Isostatic pressing.Metallization.

Tolerance:
Up to ±0.002mm, as customer’s drawing or OEM.

Surface:

Ultrasonic cleaning and dust-free packaging or according to customer’s requirements.