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:
Jun. 07, 2022
Filed:
Apr. 24, 2020
United States of America As Represented BY the Administrator of Nasa, Washington, DC (US);
Vivek Dwivedi, Greenbelt, MD (US);
United States of America as represented by the Administrator of NASA, Washington, DC (US);
Abstract
The present invention relates to utilizing atomic layer deposition (ALD) techniques to deposit a layer of boron compound in a light-weight composite carbon-based foam derived from natural precursors, graphene, or other carbon-based materials, to minimize the effects of radiation in space applications. A method of manufacturing radiation shielding material includes: preparing a carbon-based foam product in a predetermined volume; and doping the carbon-based foam product by depositing a boron or boron-10 aluminum oxide (B/B—Al—O) compound using ALD in a vacuum chamber on either carbon-based foam or spherical silica particles prior to generating a carbon-based foam; wherein doping the carbon-based foam product includes depositing the boron-Al—O compound at a thickness of between one and two atomic percent of boron-10 within the carbon-based foam or on the silica particles; or coating a percentage of average foam pores (50% of average foam pore diameter) of the carbon-based foam product with the boron-Al—O compound.