Description:

Insulating ceramics belong to the category of electrical and electronic ceramics. Their core functions are to isolate conductors, prevent current leakage, and withstand voltage. They achieve insulation by relying on the extremely high resistivity of the ceramics themselves, while also taking into account high-temperature resistance and corrosion resistance.


Specification:


Performance Table of Ceramic MaterialsNamesteatite ceramicsDongqing stone porcelainmullite porcelain95 alumina porcelain99 alumina porcelain

propertysymbolunitC221C520C610C795C799
porosityPaVo1%020000
DensityPaMgm-32.71.92.63.53.7
specific heat capacityCp10-100Jkg-1K-1800to900750-900850-1050850-1050850-1050
thermal conductivity入s0-100Wm-1K-12to31.3-1.82月6日16-2819-30
thermal shock resistanceΔTK100300150140150
Electrical insulationEdkV mm-120---171517
Electrical insulationUkV30---251820
relative dielectric constantεs---6---899
Dielectric constant temperature coefficientTKE10⁻⁶K⁻¹160 to +70------------
Volume resistivity. (d.c.)30°Cpv30Ω·m1011---101110121012
200°CPv200Ω·m10510710510101010
600°CPv600Ω·m105103104105105
Volume resistivity1 MΩ mTpi℃500---300500500
0,01 MΩmT_p001℃800500600800

800







Product features

Features

It features high hardness, excellent wear resistance, corrosion resistance, high-temperature resistance, high strength, strong insulation resistance, can withstand voltage, good thermal conductivity and low dielectric loss

Product Use

  • It is widely applied in industrial manufacturing, the medical industry, the aerospace industry and the textile industry