China High-Purity Alumina Ceramic Lamp Holder Base

High-purity Alumina Ceramic Lamp base/Holder
1: High dielectric strength
2: Excellent electrical resistance
3: Abrasion resistant
4: High electrical insulation
LED Ceramic Lamp Holder &base widely used in lighting industry.
Type: E14/E27. /MR16/GU10/UV lamp holder&base Accroding to client's drawing
Raw Material: 95, 99, 99.7% Alumina Powder imported From Australia.
Properties Density: 3.6 g/cm2
Water absorption: 0
Sintering temperature1680 oC
Physical propertyHardness: 1500 HV
Rupture strength: 3000 Kg/cm2
Pressive strength: 25000 Kg/cm2
Thermal property Maximum service temperature: 1450 oC
Thermal shock resistance: 220 T (oC)
Thermal conductivity: 25-- 14 W/m. K(2 5--300 oC))
We manufacture customized technical ceramic parts and components, covering a wide range of series. We adopt advanced forming and machining techniques to process components made from alumina, zirconiz, cordierite. These materials can be used in applications which require wear and corrosion resistance, high temperature property, or ceramic insulators for electrical resistance.

NameUnit AluminaZirconiaContent %≥ 95≥ 99≥ 99.7≥ 94Densityg/cm 33.653.803.906.00Hardness (Hv 0.5 )GPa 13.115.017.113.2flexural strength
MPa≥ 3403103701000Elasticity GPa 300 330 350 200Poisson' s ratio
0.23 0.23 0.23 0.30Max Tem.° C≥ 1400175018001050Heat expansionx 10 -6 /° C(40-800° C)7.88.08.011.0Thermo conductivity
W/m· K( 20° C)2228312.6Thermal Resistance ° C 200 200 230 300dielectric strength
V/m 15x 10 6 15x 10 6 15x 10 6 11x 10 6dielectric phase angle
(1MHz) x 10 -442116 SIC(1MHz) 9.29.89.933Nitric Acid
(60%)90 ° CWT Loss mg/cm 2 /day≤ 0.120.100.05 ≠ 0
Sodium hudroxide
(30%)80 ° CWT Loss mg/cm 2 /day≤ 0.530.260.040.08