Modification of the mechanical properties of zirconium dioxide ceramics by means of multiwalled carbon nanotubes
https://doi.org/10.17586/2220-8054-2016-7-1-198-203
Abstract
A ceramic matrix composite based on zirconium dioxide doped with carbon nanotubes (CNTs) and metallic silver as a plastic binder was produced by hydrothermal synthesis from ceramic precursor and a CNTs suspension followed by critical point drying of the synthesized hydrogel and metallic silver deposition on ceramic composite aerogel fragments from a AgNO3 solution. Multi-indentation loading of the composite has revealed two types of mechanical response: 1) hardness decreasing with an increasing of number of cycles and 2) significant increasing of hardness with an increasing number of indentations. Local chemical composition analysis has revealed correlations between the composite hardness and the presence oxygen atoms for first type and silver and yttrium atoms for second type of mechanical response respectively.
Supporting agencies: This work is supported by Russian Foundation for Basic Research (grant N14-01-96015-ural-a).
About the Authors
E. A. Lyapunova
Institute of Continuous Media Mechanics, Ural Branch of Russian Academy of Sciences; Ural Federal University
Russian Federation
Russian Federation
Perm; Ekaterinburg
S. V. Uvarov
Institute of Continuous Media Mechanics, Ural Branch of Russian Academy of Sciences
Russian Federation
Russian Federation
Perm
M. V. Grigoriev
Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences; Tomsk Polytechnic University
Russian Federation
Russian Federation
Tomsk
S. N. Kulkov
Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences
Russian Federation
Russian Federation
Tomsk
O. B. Naimark
Institute of Continuous Media Mechanics, Ural Branch of Russian Academy of Sciences
Russian Federation
Russian Federation
Perm
References
1. Xia Z., Riester L., Curtin W.A., Li H., Sheldon B.W., Liang J., Chang B., Xu J.M. Direct observation of toughening mechanisms in carbon nanotube ceramic matrix composites. Acta Mater., 2004, 52(4), P. 931–944.
2. Lyapunova E., Naimark O., Kulkov S., Dedova E., Sobolev I. Structure of zirconium oxide-multiwalled carbon nanotubes composite produced by electrophoretic deposition. Inorg. Mater., 2015, 51(1), P. 20–24.
3. Vasiliev A.L., Poyato R., Padture N.P. Single-wall carbon nanotubes at ceramic grain boundaries. Scripta Mater., 2007, 56, P. 461–463.
4. Curtin W.A., Sheldon B.W. CNT-reinforced ceramics and metals. Materials Today, 2004, 7(11), P. 44–49.
5. Peigney A., Laurent C., Flahaut E., Rousset A. Carbon nanotubes in novel ceramic matrix nanocomposites. Ceramic Intern., 2000, 26, P. 677–683.
6. Lyapunova E., Lunegov I., Uvarov S., Naimark O. Structural aspects of zirconium dioxide/MWCNTs com- posite. Actual problems of condensed media physics, 2015, P. 83–90. ICMM UB of RAS, Perm (in Russian).
7. Weber B.C., Garrett H.J., Mauer F.A., Schwartz M.A. Observations on the stabilization of zirconia. J. Amer. Ceramic Soc., 1956, 39(6), P. 197–206.
8. Liu L., Liu F., Zhao J. Curved carbon nanotubes: from unique geometries to novel properties and peculiar applications. Nano Research, 2014, 7(5), P.626–657.
Review
For citations:
Lyapunova E.A., Uvarov S.V., Grigoriev M.V., Kulkov S.N., Naimark O.B. Modification of the mechanical properties of zirconium dioxide ceramics by means of multiwalled carbon nanotubes. Nanosystems: Physics, Chemistry, Mathematics. 2016;7(1):198-203. https://doi.org/10.17586/2220-8054-2016-7-1-198-203
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