FUSED SILICA RADOME
Assignee
GTE LABORATORIES INCORPORATED, A CORP. OF DE
Filed
Nov 29, 1988
Granted
Aug 14, 1990
Location
ACTON MA US
Abstract
A new and improved fused silica radome is discussed. The radome has a density equal to or greater than 95 percent of theoretical density, an average bend strength equal to or greater than 10 Kpsi, a thermal expansion of about 0.3×10-6 ° C., a dielectric constant of about 3.8 at X-Band frequencies, a loss tangent of about 0.002 at X-Band frequencies, an average modulus of rupture greater than 10 Kpsi from room temperature to 1000° C., and no crystalline phase present. The radome is made by an arc fusion process in which a quartz powder is placed within a graphite mold, then shaped by centrifugal force as the mold is rotated. An arc is then struck between electrodes within the mold cavity. The quartz powder fuses to form a dense silica radome which is removed from the mold after the fusion occurs.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jun 15, 1989
Rescinded
Apr 9, 1990
Duration
9 months
Inventor
- 1JEFFREY T. NEIL
Record Details
- Patent number
- US 4949095
- Application
- 07277179
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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