NDLI: Revolutionary nanocomposite materials to enable space systems in the 21/sup st/ century

Content Provider	IEEE Xplore Digital Library
Author	Lincoln, D.M. Vaia, R.A. Beown, J.M. Tolle, T.H.B.
Copyright Year	2000
Description	Author affiliation: Air Force Res. Lab., Wright Patterson AFB, OH, USA (Lincoln, D.M.)
Abstract	Current estimates for launching payloads into space orbit stand at $10,000/lb ($22,000/kg). Significant weight, and hence cost, reductions can be realized with the use of organic materials, but such materials tend to perform very poorly in the harsh space environment. Organic polymers with uniformly dispersed nanoscale inorganic precursors may enable these materials to withstand the harsh space environment and be used as critical weight-reduction materials on current and future space systems. Nanocomposites, as these types of materials are often referred to, have received much attention over the past decade as scientists search for ways to enhance the properties of engineering polymers while retaining their processing ease. Unlike traditional filled polymer systems, nanocomposites require relatively low dispersant loadings (/spl sim/2 wt%) to achieve significant property enhancements. Some of these enhancements include increased modulus, increased gas barrier, increased thermal performance, increased atomic oxygen resistance, resistance to small molecule permeation and improved ablative performance. As a result of these enhancements, nanocomposites have the potential to play a significant role in future space systems. Launch vehicles would greatly benefit from appropriately designed nanocomposites that could provide improved barrier properties and gradient morphologies enabling linerless composite cryogenic fuel tanks. Self-rigidizing, self-passivating nanocomposite materials could be used to construct space vehicle components that are both highly resistant to space-borne particles and resistant to degradation from electromagnetic radiation, while reducing the overall weight of the spacecraft. Nanocomposite materials also offer the unique opportunity for improved tailorability of physical and structural properties such as the coefficient of thermal expansion, which would be especially useful in constructing large aperture telescopes and antennas using inflatable membranes.
Starting Page	183
Ending Page	192
File Size	1054957
Page Count	10
File Format	PDF
ISBN	0780358465
ISSN	1095323X
DOI	10.1109/AERO.2000.878401
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-03-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Nanostructured materials Organic materials Polymers Thermal resistance Inorganic materials Payloads Costs Vehicles Morphology Cryogenics
Content Type	Text
Resource Type	Article
Subject	Aerospace Engineering Space and Planetary Science

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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