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One-Step Synthesis of BaCO3 Nano-Particles via Mechano-Chemical Method

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Abstract:

Barium carbonate (BaCO3) nano-particles were synthesized from the mixture of Ba(OH)2.8H2O and Na2CO3 by mechano-chemical route without any subsequent heat treatment of the as-milled powders. Effects of milling time and addition of process control agents (PCA) on the phase composition and morphology of products have been investigated. The samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD results show that BaCO3 nano-particles were synthesized only after 10 minutes of mechanical milling and phase evolution was not taken place by further milling. SEM results indicated that pencil-like and globular-like were two major morphologies of the particles. Addition of stearic acid as a PCA resulted in homogenized globular-like nano-particles with a mean particle size of 54 nm.

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Periodical:

Advanced Materials Research (Volumes 622-623)

Pages:

985-989

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.622-623.985

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Online since:

December 2012

Authors:

H. Akbari Moayyer, A. Ataie, Amin Nozari, Saeed Jafari

Keywords:

BaCO3, Mechano-Chemical, Nanoparticle, Principal Component Analysis (PCA)

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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