SIO2: about 60%
MgO:about 31%
AL2O3:about 5%
BaO:about 5%
CaO:about 0.5%
Fe2O3:about 0.2%
Physical Properties
* High electrical resistance
* Low dielectric loss factor
* Relatively high mechanical strength
* High volume resistivity at elevated temperatures
* Excellent dielectric strength
* Low dissipation factor
Applications
* Insulating washers or bushings
* Supports for heating elements
* Electrical insulators
* Stand-off insulators
* Lighting insulators (supports, bases, etc.)
* Spacers
Property | Mechanical performance | |||
Bulk density | Hardness | Flexural strength 20C | Compression strength 20C | |
Unit | G/cm3 | Gpa | Mpa | Mpa |
Data | >2.7 | 179 | 1150 |
Thermal property | Electrical performance | ||||
Max using temperature | Thermal shock resistance | Coefficient of linear expansion | Dielectric hotline | Electrical penetration strength | Volume resistivity |
C | 850-20C | x10-6m | 1MHZ | KV/mm | KV/mm |
1300 | 10 | 8 | <6.5 | 20 | 10^14 |











