Quartz Honeycomb Core
(rev. 051601)
Quartz
Honeycomb is a low density low loss honeycomb core material specially designed
for the use in spacecraft Synthetic Aperture Radar (SAR), Optical Sensor
Systems, Radomes, low dielectric related applications and other structures which
must be positioned with accuracy and stability in order to properly perform
their intended purpose.
Quartz
Honeycomb core is durable and easy to work with. We have found that there is a
significant weight savings compared to foam. We've also had success in slicing
the honeycomb core to 0.050±0.002" thickness.
Dielectric
Properties
The dielectric
constant and the loss tangent factor of Quartz are the most distinguished
amongst all mineral fibers. Properties of UQF-105-1/4-3.0 honeycomb core test
at average frequencies of 9.5 GHz:
| Type | Average Frequency |
Dielectric Constant along ribbon |
Loss Tangent along ribbon |
Dielectric Constant across ribbon |
Loss Tangent across ribbon |
| UQF-105-1/4-3.0 | 9.5 GHz | 1.042 | 0.00083 | 1.060 | 0.00036 |
Mechanical
Properties
Ultracor Inc.
manufactures a honeycomb core structure out of
Astroquartz® fibers and space qualified Cyanate Ester resin
(UQF-105-1/4-3.0). Mechanical properties are found in the table below.
Density |
Comp. Strength |
Comp. Modulus |
"L" Shear Strength |
"L" Shear Modulus |
"W" Shear Strength |
"W" Shear Modulus |
pcf (g/cc) |
psi (KPa) |
ksi (MPa) |
psi (KPa) |
ksi (MPa) |
psi (KPa) |
ksi (MPa) |
2.8 (0.045) |
216 (1489) |
14.8 (102) |
175 (1207) |
23.2 (160) |
94 (648) |
11.9 (82) |
Thermal
Properties
The Quartz Honeycomb core has a unique feature of low Coefficient of Thermal Expansion (CTE). Below are comparisons of CTE in the thickness direction of various honeycomb cores.
Company -
Products -
Manufacturing -
Honeycomb
Properties -
Contacts
Ultracor Inc.
- 136 Wright Brothers Ave, Livermore CA 94551, USA
Phone: (925)
454-3010 - Fax: (925) 454-3011 - Email:
info@ultracorinc.com
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