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Preparation of ultrafine CsCl crystallites by combined cryogenic and room temperature ball milling

Tiwary, CS and Verma, Akash and Biswas, Krishanu and Mondal, Amit K and Chattopadhyay, Kamanio (2011) Preparation of ultrafine CsCl crystallites by combined cryogenic and room temperature ball milling. In: Ceramics International, 37 (8). pp. 3677-3686.

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Official URL: http://dx.doi.org/10.1016/j.ceramint.2011.06.029


The present investigation reports the preparation and microstructural characterization of ultrafine CsCl crystallites using combined cryogenic and room temperature (RT) mechanical milling. The milling has been performed in evacuated WC vials under high purity argon atmosphere. The low temperature milling has been utilized as an effective means of rapid fracturing of the CsCl crystallites. This was followed by RT milling for different time durations. The final crystallite size obtained is 10 +/- 6 nm for sample cryo-milled for 11 h and subsequently RT milled for 35 h. The experimental findings indicate the strong effect of duration of cryo-milling on the final size of the crystallites. The prolonged room temperature milling leads to increase of the crystallite size due to deformation-induced sintering. The results have been discussed in the light of currently available literature. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Sintering;CsCl;Cryogenic temperature;Ball milling; Nanocrystallites
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Id for Latest eprints
Date Deposited: 21 Dec 2011 09:13
Last Modified: 21 Dec 2011 09:13
URI: http://eprints.iisc.ac.in/id/eprint/42595

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