Metallized Ceramic Components

China Metallized Ceramic Components, Find details about China Metallized Ceramic Components, Machinable Ceramic from Metallized Ceramic Components

Model NO.
GT-0072
Trademark
SHANGTAO
Origin
Shanghai
Model NO.
GT-0072
Trademark
SHANGTAO
Origin
Shanghai

Provide customers a comprehensive purchasing platform of industrial and electric heat ceramic products

 

Description

 

Gongtao company specializes in the production and research of machinable ceramic.The main products:Machinable ceramics and tools, with good machining performance, good vacuum, high and low temperature resistance, insulation and acid-corrosion ect properties.It can be widely used in aviation, aerospace, electronics substrates, high temperature insulation skeleton, ion plating, vacuum coating, plasma display mirror,ion accelerators, lasers, and medical devices.

Our machinable ceramic has good machining performance, and can be turning, milling, grinding, drilling, drilling and tapping and other machining by ordinary machine tools and cutting tools.The machining accuracy can reach up to 5μm, finish high up 0.5μ. It has a good vacuum, high and low temperature resistance, insulation and acid and alkali corrosion resistance ect properties.

Thermal shock resistance of machinable ceramic is very good, quenching from 800 °C to 0 °C,no broken, from 200 °C to 0 °C ,the intensity does not change.

 

The main advantage:
-It can be turned,milled,grinded,drilled and tapped and other machining.
-Precision machining dimensions.
 -Non-magnetic.

Conent: 

 

SiO² 46%

Magnesium oxide MgO 17%

Aluminium oxide Al²O3 16%

Potassium oxide K²O 10%

Boron oxide B²O 7%

Fluorine-F 4%

 
Item Standard value Remarks
Density 2.6 g/m³  
Porosity 0.069%  
Water absorption 0  
Hardness 4-5 Mohs
Color Pure white  
Thermal expansion coefficient 72×10 -7 /°C 100°C ~600°C average value
Thermal conductivity 1.71W/m.k 25°C
Working temperature 800°C  
Bending Strength >108MPa  
Compress strength >508 MPa  
Impact Toughness >2.56KJ/ m 2  
Modulus of elasticity 65GPa  
Insertion loss 1~ 4×10 -3 Room temperature
Dielectric constant 6-7 "
Dielectric strength >40KV/mm Thickness of sample 1mm
Bulk density 1.08×10 16 Ω.cm 25°C
1.5×10 12 Ω.cm 200°C
1.1×10 9 Ω.cm 500°C
Gas efficiency at normal temperature 8.8×10 -9  ml/s. cm 2 Vacuum experienced for eight hours
Helium permeatingrate 1×10 -10 ml/s After 500C burning,cool to room temperature.
5%HC1 0.26mg/ cm 2 95°C,24 hours
5%HF 83mg/ cm 2 "