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Title: Effects of Interfacial Topography on Adhesion and Fracture at the Nanoscale (Invited).

Abstract

Abstract not provided.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1148085
Report Number(s):
SAND2007-2852C
523248
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the 10th International Conference on the Mechanical Behavior of Materials held May 27-31, 2007 in Busan, Korea.
Country of Publication:
United States
Language:
English

Citation Formats

Moody, Neville Reid, Talin, Albert Alec, Reedy, Earl David ,, Kennedy, Marian S., and Bahr, David F.. Effects of Interfacial Topography on Adhesion and Fracture at the Nanoscale (Invited).. United States: N. p., 2007. Web.
Moody, Neville Reid, Talin, Albert Alec, Reedy, Earl David ,, Kennedy, Marian S., & Bahr, David F.. Effects of Interfacial Topography on Adhesion and Fracture at the Nanoscale (Invited).. United States.
Moody, Neville Reid, Talin, Albert Alec, Reedy, Earl David ,, Kennedy, Marian S., and Bahr, David F.. Tue . "Effects of Interfacial Topography on Adhesion and Fracture at the Nanoscale (Invited).". United States. doi:. https://www.osti.gov/servlets/purl/1148085.
@article{osti_1148085,
title = {Effects of Interfacial Topography on Adhesion and Fracture at the Nanoscale (Invited).},
author = {Moody, Neville Reid and Talin, Albert Alec and Reedy, Earl David , and Kennedy, Marian S. and Bahr, David F.},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 01 00:00:00 EDT 2007},
month = {Tue May 01 00:00:00 EDT 2007}
}

Conference:
Other availability
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  • A series of PAN-based IM6 carbon fibers having varying amounts of surface treatment were, pretreated with compounds representing the constituents encountered in epoxy composites to pre-react any groups on the fiber surface before composite fabrication in order to determine the effect of chemical bonding on fiber-matrix adhesion. Chemical bonding was quantified using XPS. Chemical bonding between reactive groups in amine cured epoxy matrices and the surface groups present on IN46 carbon fibers as a result of commercial surface treatments has been detected although the absolute amount of chemical bonding is low (1-3%). It was found that reaction with monofunctional epoxymore » groups having hydrocarbon functionalities blocked the surface from further reaction and reduced the adhesion that could be attained to its lowest value. Prereaction with difunctional amines had little effect on adhesion when compared to normal composite fabrication procedures. Prereaction with difunctional epoxy groups did enhance adhesion levels over the level attained in normal composite fabrication methods. These results showed that chemical bonding between epoxy and the carbon fiber surface could increases the adhesion between fiber and matrix about 25% while between the amino group and the carbon fiber surface about 15%. Quantitative measurements of the fiber surface microtopography were made with scanning tunneling microscopy. An increase in roughness was detected with increasing surface treatment. It was concluded that surface roughness also accounted for a significant increase in fiber-matrix adhesion.« less
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