▎ 摘　　要

NOVELTY - Forming a carbon-based foam with silica particles doped with boron-10 aluminum oxide (B10-Al-O) mixed in its, comprises: depositing B10-Al-O compound using atomic layer deposition (ALD) on many silica particles in an open mesh basket in a vacuum chamber, where the doping of the carbon-based foam product includes depositing B10-Al-O compound; and preparing the carbon-based foam by providing a carbon-based powder in a predetermined weight ratio to water, mixing the silica particles with the carbon based poweder, stirring a first mixture of the carbon-based powder, water, and a predetermined amount of furfuryl alcohol to a predetermined weight, adding glutaraldehyde in water to first mixture to obtain a second mixture and stirring the second mixture, adding para-toluene sulfonic acid in water to second mixture to obtain a third mixture and continuing mixing the third mixture to obtain carbon-based foam and hardening the carbon-based foam for 72 hours at room temperature. USE - The method is useful for forming carbon-based foam with silica particles doped with B10-Al-O mixed in its (claimed) for radiation shielding, preferably gamma radiation shielding in space applications. ADVANTAGE - The method: utilizes 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, which allows protection of valuable spaceflight hardware and prevents harmful radiation to astronauts, e.g. in manned vehicles that will go to the Moon or Mars; and modifies carbon-based foams to achieve porous foams which are light weight and are analogs to aerogels without the brittle structure. DETAILED DESCRIPTION - Forming a carbon-based foam with silica particles doped with boron-10 aluminum oxide (B10-Al-O) mixed in its, comprises: depositing B10-Al-O compound using atomic layer deposition (ALD) on many silica particles in an open mesh basket in a vacuum chamber, where the doping of the carbon-based foam product includes depositing B10-Al-O compound at a thickness of between one and two atomic percent of boron-10; and preparing the carbon-based foam by providing a carbon-based powder in a predetermined weight ratio to water, mixing the silica particles with the carbon based poweder, stirring a first mixture of the carbon-based powder, water, and a predetermined amount of furfuryl alcohol to a predetermined weight, adding glutaraldehyde in water to first mixture to obtain a second mixture and stirring the second mixture, adding para-toluene sulfonic acid in water to second mixture to obtain a third mixture and continuing mixing the third mixture to obtain carbon-based foam and hardening the carbon-based foam for 72 hours at room temperature.