Bulk metallic glasses: A new class of engineering materials

Basu, Joysurya and Ranganathan, S (2003) Bulk metallic glasses: A new class of engineering materials. In: Sadhana-Academy Proceedings in Engineering Sciences, 28 (3-4). pp. 783-798.

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Abstract

Bulk glass-forming alloys have emerged over the past fifteen years with attractive properties and technological promise. A number of alloy systems based on lanthanum, magnesium, zirconium, palladium, iron, cobalt and nickel have been discovered. Glass-forming ability depends on various factors like enthalpy of mixing, atomic size and multicomponent alloying. A number of processes is available to synthesise bulk metallic glasses. The crystallisation behaviour and mechanical properties of these alloys pose interesting scientific questions. Upon crystallisation many of these glasses transform to bulk nanocrystals and nanoquasicrystals. A detailed study of the structure and the crystallisation behaviour of glasses has enabled the elucidation of the possible atomic configuration in liquid alloys. Their crystallisation behaviour can be exploited to synthesise novel nanocomposite microstructures and their mechanical properties can be enhanced. A broad overview of the present status of the science and technology of bulk metallic glasses and their potential technological uses is presented.

Item Type:	Journal Article
Publication:	Sadhana-Academy Proceedings in Engineering Sciences
Publisher:	Indian Academy of Sciences
Additional Information:	The Copyright belongs to Indian Academy of Sciences.
Keywords:	Bulk metallic glasses;Glass-forming ability;Fragility;Nanocrystallisation;Nanoquasicrystallisation;Flow and fracture;Soft magnetism;Corrosion resistance
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	19 Apr 2006
Last Modified:	19 Sep 2010 04:25
URI:	http://eprints.iisc.ac.in/id/eprint/6362

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