The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2018
Filed:
Jan. 23, 2015
The United States of America As Represented BY the Administrator of the National Aeronautics & Space Administration (Nasa), Washington, DC (US);
Sylvia M. Johnson, Alameda, CA (US);
John W. Lawson, Mountain View, CA (US);
Thomas H. Squire, Alameda, CA (US);
Michael Gusman, Palo Alto, CA (US);
The United States of America as Represented by the Administrator of NASA, Washington, DC (US);
Abstract
A thermal protection system (TPS) comprising a mixture of silicon carbide and SiOthat has been converted from Si that is present in a collection of diatom frustules and at least one diatom has quasi-periodic pore-to-pore separation distance d(p-p) in a selected range. Where a heat shield comprising the converted SiC/SiOfrustules receives radiation, associated with atmospheric (re)entry, a portion of this radiation is reflected so that radiation loading of the heat shield is reduced.