Materials-
Steatite & Cerasil™
For low-cost ceramic insulators, GBC offers
two basic materials:
- L3 Steatite Ceramic
- CerasilTM
223U Ceramic
L3 Steatite - GBC's Steatite
(Proto-Enstatite,
MgO Si02)
Ceramic is ideal for high frequency, low
loss, high voltage insulation. Our L-3
Steatite composition is multi-component
crystalline phases of the magnesium-aluminum-silicate
system group. With good mechanical properties,
low loss electrical qualities, it is ideal
for resistor forms, surge arrestors, standoffs,
spacers, and coil forms. Steatite is easily
fabricated to close tolerances and is
much less expensive than alumina ceramic
insulators.
CerasilTM
223U Ceramic is an alumino silicate
ceramic with properties similar to steatite,
but with some distinct advantages. 223U
has a lower thermal coefficient of expansion
than steatite or high alumina ceramics
which results in excellent thermal shock
resistance. 223U also features lower firing
temperature, consistent lower shrinkage
and less tool wear resulting in lower
cost and faster delivery. Cerasil 223U
is ideal for volume production of small
pressed insulators often replacing steatite
or alumina parts.
|
Units |
Property/Material |
Steatite |
Cerasil |
|
gms/cc |
Density |
2.5 |
2.4 |
|
- |
Color |
off-white |
tan |
|
ºF |
Max. Use Temp. |
1840 |
1800 |
|
in/inºC
x 10-7 |
C.T.E. |
80 |
50 |
|
x
1000psi |
Tensile |
8.5 |
10 |
|
x
1000psi |
Flexural |
18 |
20 |
|
x
1000psi |
Compressive |
80 |
90 |
|
DC
Volt/mil @ 0.10" thick |
Dielectric Strength |
225 |
200 |
|
Ohm/cm3 |
Volume Resistivity |
2.1 x 1012 |
>1014 |
|
- |
Dielectric Constant |
5.9 |
5.3 |
|
- |
Dissipation Factor |
0.0035 |
0.015 |
|
@
10 MC |
Loss Factor |
0.016 |
0.05 |
|
g.cal/cm-sec-ºC |
Thermal Conductivity |
0.006 |
0.003 |
|
GBC Materials
makes no warranty express or implied
concerning the use of this product.
Purchaser assumes all risk of
use or handling whether or not
in accordance with directions
or suggestions, or used alone
or in combination with other products.
Data
Sheet Downloads: CerasilTM 223U Ceramic
|
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Morgan Advanced Ceramics Inc
GBC Materials
580 Monastery Drive. Latrobe, PA 15650 USA
Phone: +1 724-537-7791 •
Fax: +1 724-537-4910
Email: gbcmaterials.sales@morganplc.com
A Division of Morgan
Advanced Ceramics
Morgan
Technical Ceramics is a Global Business
Unit of the Morgan
Crucible Company plc.
It comprises Morgan
Advanced Ceramics and Morgan
Electro Ceramics.
|
