Preparing of CaCO3 Nano-particles by Mechano-chemical Method

被引：0
|
作者：
Sargheini, J. [1 ]
Ataie, A. [2 ]
Salili, S. M. [2 ]
Johari, M. [2 ]
Hadad, M. [2 ]
机构：
[1] Islamic Azad Univ, Min Dept, Tehran S Campus, Tehran, Iran
[2] Univ Tehran, Sch Met & Mat Engn, Tehran 14395, Iran
来源：
MATERIALS AND MANUFACTURING TECHNOLOGIES XIV | 2012年 / 445卷
关键词：
Calcium carbonate; Nano-particle; Mechano-chemical; NANOPARTICLES;
D O I：
10.4028/www.scientific.net/AMR.445.833
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This research was aimed to synthesize calcium carbonate nano-particles from CaCl2, NaCl and Na2CO3 precursors by mechano-chemical route without any subsequent heat treatment of the as-milled powder. Effects of intensive milling duration and amount of NaCl as a diluting agent on the powder particle characteristics have been investigated. XRD results showed that CaCO3 nano-particles were obtained after 30 minutes of continuous milling in the planetary ball mill regardless of the amount of NaCl. Further milling up to 10 hour resulted in peak broadening indicating the crystallite refinement. For the 10-hour milled sample in the presence of 3.5 mole% NaCl, the mean crystallite and particle sizes were 12 and 56 nm, respectively. Those values decreased slightly when the amount of NaCl increased from 3.5 to 10.3 mole%.
引用
收藏
页码：833 / +
页数：2
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