NDLI: Development of carbon nanotube-based composite for spacecraft components

Content Provider	IEEE Xplore Digital Library
Author	Rawal, S. Brantley, J. Karabudak, N.
Copyright Year	2013
Description	Author affiliation: Lockheed Martin Space Syst. Co., Denver, CO, USA (Rawal, S.; Brantley, J.) \|\| Corp. HQ, Lockheed Martin Corp., Bethesda, MD, USA (Karabudak, N.)
Abstract	Over the last decade, there have been significant advancements in the material synthesis and processing aspects of the carbon nanotube (CNT) technology, and the basic understanding of its multifunctional properties. Lockheed Martin Space Systems has been evaluating CNTs, vapor-grown carbon nanofibers (VGCF), and CNT sheets, grapheme-based nanocomposites, from different sources for incorporating them into composite components of spacecraft structures. This paper describes the use of CNT-based composite components such as tubes and sandwich panels on the Juno spacecraft. In the last two decades, several composite-based solutions have also been investigated to minimize the Materials and Processing steps and introduce electrical functionality to satisfy electrostatic dissipation (ESD), grounding, and shielding effectiveness (SE) requirements for spacecraft structures. A few of these concepts have had very limited success, compared to the highly-effective approaches such as an outer surface of thin aluminum (Al) foil or electrically conductive coating. In this investigation, several viable nanocomposite-based approaches were evaluated for the spacecraft composite structure applications. A few of these approaches offered the design solution satisfying the ESD and outgassing requirements, and provided good thermal conductivity. More specifically, the dry CNT sheets were incorporated as the outermost ply on the conventional composite layup, which were processed using state-of-the-art (SOA) autoclave process for fabricating the tube elements for the spacecraft. These tubes exhibited excellent surface finish, enhanced surface conductivity, and improved stiffness, compared to the state-of-the-art composite tubes. Building upon this technology development effort, a few flight-quality tubes and a flight-quality sandwich panel were successfully fabricated and qualified for the Juno spacecraft. Successful technology insertion of a CNT sheet for ESD protection on the Juno spacecraft will pave the way for the extensive use of CNT-based composite structures on future spacecrafts, thus benefiting from CNT's multifunctional attributes such as electromagnetic shielding effectiveness, thermal and electrical conductivity, and enhanced fracture toughness and interlaminar properties.
Sponsorship	IEEE Aerosp. Electron. Syst. Soc.
Starting Page	13
Ending Page	19
File Size	2142251
Page Count	7
File Format	PDF
ISBN	9781467363952
e-ISBN	9781467363969
DOI	10.1109/RAST.2013.6581186
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-12
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	multifunctional properties spacecraft carbon nanotube Electromagnetic interference Materials Conductivity Surface charging Electrostatic discharges composite structures Aircraft manufacture electrostatic dissipation Surface treatment
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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