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Metallic Glasses, Quasicrystals and their Nanocomposites - Synthesis and Characterization of Metallic Glasses, Quasicrystalline-Glass Composites in some Zr/Cu-Based Alloys

English, German · Paperback / Softback

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The endeavours made in this book are intended to study the effect of material tailoring on the crystallization behaviour, glass forming ability and structure/microstructure of Zr/Cu-based metallic glasses and nanoquasicrystal-glass composites. The substitution of Ga on Al site in Zr-Al-Cu-Ni alloy affects the nucleation and growth characteristics of quasicrystals and consequently changes the morphology of nanoquasicrystals. A new metallic glass composition; Zr-Ga-Cu-Ni with glass transition temperature (Tg); 614 K has been observed. The addition of Ti destabilizes the glassy phase in (Zr-Al-Cu-Ni)Ti alloys. Formation of single quasicrystalline phase by annealing the glass has been found for the alloys. The size of quasicrystal grain decreases with increase of Ti. Rapidly solidified ribbons of Cu-Ga-Mg-Ti and Cu-Al-Mg-Ti alloys show the formation of Gamma-brass type phase, which is an approximant of quasicrystals. The Cu-Ga-Mg-Ti alloy display ordered Gamma-brass structure, whereas Cu-Al-Mg-Ti leads to the formation of amorphous and nanocrystalline disordered bcc Gamma-brass phase. Electron diffraction patterns have been found to show a close structural similarity with the icosahedral phase.

About the author










The author has obtained his Ph.D degree in Economics from MDU Rohtak. Presently, he is associated in Economics at IGU Meerur (Rewari), India. He has also worked in Univ. of Delhi. He is the author of several articles published in reputed National & International Journals and is a member of different National and International academic bodies.

Product details

Authors Devinde Singh, Devinder Singh, O N Srivastava, O. N. Srivastava, R Tiwari, R S Tiwari, R. S. Tiwari, R.S. Tiwari
Publisher LAP Lambert Academic Publishing
 
Languages English, German
Product format Paperback / Softback
Released 01.01.2014
 
EAN 9783659620881
ISBN 978-3-659-62088-1
No. of pages 164
Subject Natural sciences, medicine, IT, technology > Physics, astronomy

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