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Synchronous Separation, Seaming, Sealing and Sterilization (S4) using Brazing for Sample Containerization and Planetary Protection

Show simple item record Bar-Cohen, Yoseph Badescu, Mircea Sherrit, Stewart Bao, Xiaoqi Lindsey, Cameron Kutzer, Thomas Salazar, Eduardo 2020-04-22T22:29:30Z 2020-04-22T22:29:30Z 2018-03-04
dc.identifier.citation SPIE Smart Structures + Nondestructive Evaluation (NDE), Denver, Colorado, March 4-8, 2018 en_US
dc.identifier.clearanceno 18-0653
dc.description.abstract The return of samples back to Earth in future missions would require protection of our planet from the risk of bringing uncontrolled biological materials back with the samples. This protection would require “breaking the chain of contact (BTC)”, where any returned material reaching Earth for further analysis would have to be sealed inside a container with extremely high confidence. Therefore, the acquired samples would need to be contained while destroying any potential biological materials that may contaminate the external surface of the container. A novel process that could be used to contain returning samples has been developed and demonstrated in a quarter scale size. The process consists of brazing using non-contact induction heating that synchronously separates, seams, seals and sterilizes (S4) the container. The use of brazing involves melting at temperatures higher than 500°C and this level of heating assures sterilization of the exposed areas since all carbon bonds (namely, organic materials) are broken at this temperature. The mechanism consists of a double wall container with inner and outer shells having Earth-clean interior surfaces. The process consists of two-steps, Step-1: the double wall container halves are fabricated and brazed (equivalent to production on Earth); and Step-2 is the S4 process and it is the equivalent to the execution on-orbit around Mars. In a potential future mission, the double wall container would be split into two halves and prepared on Earth. The potential on-orbit execution would consist of inserting the orbiting sample (OS) container into one of the halves and then mated to the other half and brazed. The latest results of this effort will be described and discussed in this manuscript. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2018 en_US
dc.subject sample return en_US
dc.subject planetary exploration en_US
dc.subject brazing en_US
dc.subject synchronous separation en_US
dc.subject seaming en_US
dc.subject sealing and sterilization (S4) en_US
dc.subject break the chain (BTC) en_US
dc.subject containerization en_US
dc.subject planetary protection en_US
dc.title Synchronous Separation, Seaming, Sealing and Sterilization (S4) using Brazing for Sample Containerization and Planetary Protection en_US
dc.type Preprint en_US

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