Rachit Pandey; Manoj Gupta
Abstract
The rapid progress in the expanse of electromagnetic devices among the broad scale of industrial, military, commercial and consumer sector has led to a surge in electromagnetic interference which has now become the fourth most prevalent category of pollution. Thus, there is a dire need of developing ...
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The rapid progress in the expanse of electromagnetic devices among the broad scale of industrial, military, commercial and consumer sector has led to a surge in electromagnetic interference which has now become the fourth most prevalent category of pollution. Thus, there is a dire need of developing materials which can shield the devices of its adverse effects. This review sets foot into what so far has been done in order to develop such shielding materials by targeting Mg. The dependence in shielding effectiveness on variation in heat treatment, concentrations of the alloying elements, forming processes and its combinations have been addressed in this review.
Vyasaraj Manakari; Gururaj Parande; Mrityunjay Doddamani; Ganesh Kumar Meenashisundaram; Manoj Gupta
Abstract
Lightweight composite materials possessing higher damping capabilities are of great interests to material designers satisfying ever changing demands in automotive, aerospace and marine sectors. Besides having lowest density in metals regime, magnesium exhibits superior mechanical properties. Specific ...
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Lightweight composite materials possessing higher damping capabilities are of great interests to material designers satisfying ever changing demands in automotive, aerospace and marine sectors. Besides having lowest density in metals regime, magnesium exhibits superior mechanical properties. Specific properties can still be enhanced by reducing the density further with development of magnesium based syntactic foams. Present work deals with processing and experimental characterization of glass microballoon (GMB) reinforced magnesium (Mg) composites. Hollow glass microspheres (5, 15 and 25 wt.%) reinforced magnesium syntactic foams were synthesized in magnesium matrix using the disintegrated melt deposition (DMD) method and their damping properties are investigated. The addition of glass microspheres enhanced the damping and loss factors by 370% and 12.5 times respectively for the highest filler loading as compared to pure magnesium. Further, increase in damping is correlated with microstructural changes arising due to the presence of the hollow glass microspheres. Elaborate discussion is presented on underlying mechanisms and different phases formed during processing.
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