Accession Number:

ADD014045

Title:

Low Loss Radar Window for Reentry Vehicle.

Descriptive Note:

Patent, Filed 10 Sep 87, patented 22 Nov 88,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s):

• Place, Thomas M., Jr

Report Date:

1988-11-22

Pagination or Media Count:

6.0

Abstract:

A radar window for a reentry vehicle where the window is made of a composite material of boron nitride, silica, and boron nitride yarn. Silica in the range of 2 to 18 percent is the preferred range in the composite material and the boron nitride matrix ranges from 5 to 15 percent. Patents. rh

Descriptors:

• *COMPOSITE MATERIALS
• *RADAR
• *REENTRY VEHICLES
• *WINDOWS
• BORON NITRIDES
• LOW LOSS
• PATENTS
• SILICON DIOXIDE
• YARNS

Subject Categories:

• Active and Passive Radar Detection and Equipment
• Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE