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High resolution electron microscopic studies of HoAl3, Er0·5Gd0·5Al3 and Y0·91Er0·09Al3 in thin film form
Anand Kumar Singh Ajay Kumar Singh M S Gupta O N Srivastava
Volume 6 Issue 3 July 1984 pp 603-609
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https://www.ias.ac.in/article/fulltext/boms/006/03/0603-0609 -
Keywords
High resolution electron microscopy ;structural characterisation ;modulated phases ;Al-rare earth system ;lattice imaging -
Abstract
Rare earth trialuminides (RAl3) exhibit an interesting series of structures changing from 2H to 3C in the bulk form. Many of the rare earth trialuminides have been recently found to exhibit curious structural characteristics such as the occurrence of the modulated phases. A detailed investigation of the formation synthesis and characterization of some binary and ternary alloys of the rare earth-aluminium system has been carried out. High resolution microscopic technique has been employed to study the modulated phases for some alloyse.g. HoAl3, Er0·5Gd0·5Al3 and Y0·91Er0·09Al3. With the help of lattice imaging technique, several new modulated phases have been investigated. A possible mechanism for the formation of these phases has been suggested. The details of the results obtained by lattice imaging technique are discussed.
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Author Affiliations
Anand Kumar Singh1 Ajay Kumar Singh1 M S Gupta1 2 O N Srivastava1
- Department of Physics, Banaras Hindu University, Varanasi - 221 005, India
- Philips India Limited, Bombay - 400 018
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Dates
- Published
- July 1984
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Bulletin of Materials Science
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