Damping behavior of carbon nanotube reinforced aluminum oxide coatings by nanomechanical dynamic modulus mapping

被引：34
作者：
Balani, Kantesh [1 ]
Agarwal, Arvind [1 ]
机构：
[1] Florida Int Univ, Nanomech & Nanotribol Lab, Dept Mech & Mat Engn, Miami, FL 33174 USA
来源：
JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 06期
关键词：
D O I：
10.1063/1.2978185
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Nanomechanical dynamic analysis has been utilized to evaluate damping behavior of plasma sprayed carbon nanotube (CNT) reinforced Al(2)O(3) ceramic coatings. Addition and dispersion of CNTs in Al(2)O(3) matrix elicited modulus enhancement from 200 to 400 GPa. Tan delta increases. from 0.26 for Al(2)O(3) to 0.39 with 8 wt % CNT coating. CNT bending and curling, Al(2)O(3) coating on CNT, interparticle Al(2)O(3) friction, and CNT/splat sliding serve as strong loss mechanisms in imparting enhanced damping to Al(2)O(3) nanocomposites reinforced with CNTs. Damping and fracture toughness of CNT-Al(2)O(3) coating is semiempirically related to the enhancement of storage modulus and tan delta with varying CNT content and degree of dispersion. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2978185]
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页数：6
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共 30 条
[1]   Carbon nanotube polymer composites [J].
Andrews, R ;
Weisenberger, MC .
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2004, 8 (01) :31-37
[2]   A CRITICAL-EVALUATION OF INDENTATION TECHNIQUES FOR MEASURING FRACTURE-TOUGHNESS .1. DIRECT CRACK MEASUREMENTS [J].
ANSTIS, GR ;
CHANTIKUL, P ;
LAWN, BR ;
MARSHALL, DB .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1981, 64 (09) :533-538
[3]   Nanoindentation and contact stiffness measurement using force modulation with a capacitive load-displacement transducer [J].
Asif, SAS ;
Wahl, KJ ;
Colton, RJ .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1999, 70 (05) :2408-2413
[4]   Quantitative imaging of nanoscale mechanical properties using hybrid nanoindentation and force modulation [J].
Asif, SAS ;
Wahl, KJ ;
Colton, RJ ;
Warren, OL .
JOURNAL OF APPLIED PHYSICS, 2001, 90 (03) :1192-1200
[5]   In situ carbon nanotube reinforcements in a plasma-sprayed aluminum oxide nanocomposite coating [J].
Balani, K. ;
Zhang, T. ;
Karakoti, A. ;
Li, W. Z. ;
Seal, S. ;
Agarwal, A. .
ACTA MATERIALIA, 2008, 56 (03) :571-579
[6]   Role of powder treatment and carbon nanotube dispersion in the fracture toughening of plasma-sprayed aluminum oxide-carbon nanotube nanocomposite [J].
Balani, Kantesh ;
Bakshi, Srinivasa Rao ;
Chen, Yao ;
Laha, Tapas ;
Agarwal, Arvind .
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2007, 7 (10) :3553-3562
[7]   Wetting of carbon nanotubes by aluminum oxide [J].
Balani, Kantesh ;
Agarwal, Arvind .
NANOTECHNOLOGY, 2008, 19 (16)
[8]   Improved interfacial mechanical properties of Al2O3-13wt%TiO2 plasma-sprayed coatings derived from nanocrystalline powders [J].
Bansal, P ;
Padture, NP ;
Vasiliev, A .
ACTA MATERIALIA, 2003, 51 (10) :2959-2970
[9]   Modified Eshelby tensor modeling for elastic property prediction of carbon nanotube reinforced ceramic nanocomposites [J].
Chen, Yao ;
Balani, Kantesh ;
Agarwal, Arvind .
APPLIED PHYSICS LETTERS, 2007, 91 (03)
[10]   Analytical model to evaluate interface characteristics of carbon nanotube reinforced aluminum oxide nanocomposites [J].
Chen, Yao ;
Balani, Kantesh ;
Agarwal, Arvind .
APPLIED PHYSICS LETTERS, 2008, 92 (01)
123