TY - GEN
T1 - Chapter 6
T2 - SEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2015
AU - Papkov, D.
AU - Maleckis, K.
AU - Zou, Y.
AU - Andalib, M.
AU - Goponenko, A.
AU - Dzenis, Y.
N1 - Funding Information:
This work was supported by grants from ONR (N000141410663) and NSF (DMR 1310534).
Publisher Copyright:
©The Society for Experimental Mechanics, Inc. 2016.
PY - 2016
Y1 - 2016
N2 - Nanomaterials such as carbon nanotubes and graphene attract considerable attention due to their extraordinary mechanical and other properties. However, discontinuous nature of these carbon allotropes prevents easy transfer of their mechanical properties to the macro scale. Continuous nanofibers represent an emerging class of nanomaterials with critical advantages for structural and functional applications. However, their mechanical testing to date has been largely conducted using micrometer-long specimens in AFM-type or MEMS devices. In addition, most published reports did not test nanofibers through failure. As a result, information relevant to potential macroscopic structural applications of nanofibers is currently very limited. Here, we will present and discuss a recently developed, comprehensive mechanical evaluation protocol spanning controlled nanomanufacturing, handling, and mounting of long individual nanofiber specimens, as well as analysis of their large-deformation behavior through failure, and data reduction. The protocol will be demonstrated on several types of synthetic and biological nanofibers, including nanofibers exhibiting unique simultaneously ultrahigh elastic modulus, strength, and deformation to failure, resulting in superhigh toughness. The developed protocol will be instrumental for further optimization of mechanical properties of continuous nanofibers.
AB - Nanomaterials such as carbon nanotubes and graphene attract considerable attention due to their extraordinary mechanical and other properties. However, discontinuous nature of these carbon allotropes prevents easy transfer of their mechanical properties to the macro scale. Continuous nanofibers represent an emerging class of nanomaterials with critical advantages for structural and functional applications. However, their mechanical testing to date has been largely conducted using micrometer-long specimens in AFM-type or MEMS devices. In addition, most published reports did not test nanofibers through failure. As a result, information relevant to potential macroscopic structural applications of nanofibers is currently very limited. Here, we will present and discuss a recently developed, comprehensive mechanical evaluation protocol spanning controlled nanomanufacturing, handling, and mounting of long individual nanofiber specimens, as well as analysis of their large-deformation behavior through failure, and data reduction. The protocol will be demonstrated on several types of synthetic and biological nanofibers, including nanofibers exhibiting unique simultaneously ultrahigh elastic modulus, strength, and deformation to failure, resulting in superhigh toughness. The developed protocol will be instrumental for further optimization of mechanical properties of continuous nanofibers.
KW - Continuous nanofibers
KW - Diameter control
KW - Electrospinning
KW - Mechanical testing
KW - Size effects
UR - http://www.scopus.com/inward/record.url?scp=84952685501&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84952685501&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-22458-9_6
DO - 10.1007/978-3-319-22458-9_6
M3 - Conference contribution
AN - SCOPUS:84952685501
SN - 9783319224572
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 35
EP - 43
BT - MEMS and Nanotechnology - Proceedings of the 2015 Annual Conference on Experimental and Applied Mechanics
A2 - Prorok, Barton C.
A2 - Starman, La Vern
PB - Springer New York LLC
Y2 - 8 June 2015 through 11 June 2015
ER -