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Mechanical properties of nanodiamond-reinforced polymer-matrix composites

Maitra, Urmimala and Prasad, K Eswar and Ramamurty, U and Rao, CNR (2009) Mechanical properties of nanodiamond-reinforced polymer-matrix composites. In: Solid State Communications, 149 (39-40). pp. 1693-1697.

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Poly(vinyl alcohol)-matrix reinforced with nanodiamond (ND) particles, with ND content up to 0.6 wt%, were synthesized. Characterization of the composites by transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS) reveal uniform distribution of the ND particles with no agglomeration in the matrix. Differential scanning calorimetry reveals that the crystallinity of the polymer increases with increasing ND content, indicating a strong interaction between ND and PVA. Nano-indentation technique was employed to assess the mechanical properties of composites. Results show that even small additions of ND lead to significant enhancement in the hardness and elastic modulus of PVA. Possible micromechanisms responsible for the enhancement of the mechanical properties are discussed.

Item Type: Journal Article
Publication: Solid State Communications
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Ltd.
Keywords: Nanodiamond; Transmission electron microscopy; Mechanical properties; Nano-indentation
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 06 Jan 2010 10:32
Last Modified: 19 Sep 2010 05:49
URI: http://eprints.iisc.ac.in/id/eprint/24206

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