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2014 | OriginalPaper | Buchkapitel

Examining Impact of Particle Deagglomeration Techniques on Microstructure and Properties of Oxide Materials Through Nanoindentation

verfasst von : Sharanabasappa B. Patil, Ajay Kumar Jena, Parag Bhargava

Erschienen in: Nanomechanical Analysis of High Performance Materials

Verlag: Springer Netherlands

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Abstract

Microstructure and properties of sintered components produced from nanoparticulate materials are critically dependent on degree of deagglomeration of particulates prior to their consolidation. While all nanoparticulate materials have an inherent tendency to agglomerate owing to attractive Van der Waals forces the impact of agglomeration on sintering behavior/sintered density of powder compacts and associated properties is significant. Although a lot of work has been carried out on developing approaches to deagglomeration of nanopowders it is a challenging task to evaluate the extent of deagglomeration by examining powder compacts. Microscopy of powders (TEM) or of compacts (SEM) is unable to provide any clear distinction between powders with different degrees of particulate agglomeration/deagglomeration. The present chapter cites two case studies from processing of dye sensitized solar cells and synthesis of nanocrystalline yttria stabilized zirconia (YSZ) powders respectively to illustrate that nanoindentation can be an effective way of characterizing the impact of deagglomeration approaches and the consequent deagglomeration extent on powders and compact characteristics. Electrical characterization of the titania based dye-sensitized solar cells, characteristics of green and sintered compacts prepared from synthesized nano YSZ powders are supported by observations from nanoindentation studies.

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Vorheriges Kapitel Nanomechanical Characterization of Brittle Rocks

Nächstes Kapitel Nanoindentation of Micro Weld Formed Through Thin Nanolayered Filler

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Titel: Examining Impact of Particle Deagglomeration Techniques on Microstructure and Properties of Oxide Materials Through Nanoindentation
verfasst von: Sharanabasappa B. Patil
Ajay Kumar Jena
Parag Bhargava
Verlag: Springer Netherlands
Buch: Nanomechanical Analysis of High Performance Materials
Print ISBN: 978-94-007-6918-2

Electronic ISBN: 978-94-007-6919-9

Copyright-Jahr: 2014
DOI: https://doi.org/10.1007/978-94-007-6919-9_12

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