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Synthesis and characterization of ultra fine titanium powders

DSpace at IIT Bombay

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Title Synthesis and characterization of ultra fine titanium powders
 
Creator AMARCHAND, S
RAMAMOHAN, TR
RAMAKRISHNAN, P
 
Description The present work deals with a novel chemical solution synthesis route, for the preparation of nano size titanium powders from titanium dioxide. Titanium dioxide is allowed to form a complex, titanium catecholate precursor, in the presence of ammonium sulphate and concentrated sulphuric acid. The complex is filtered, washed with cold isopropyl alcohol and dried. Hydrogenation of titanium catecholate is carried out for different durations at various temperatures. Titanium hydride is prepared by heating the titanium catecholate precursor at 800 degrees C in a furnace of 8 x 10(-6) torr vacuum and dehydrogenated in vacuum to get fine titanium powders. The characteristics evaluated by XRD and SEM indicated that the powders are pure titanium with crystallite size in the range 45-60 nm.
 
Publisher MINERALS, METALS & MATERIALS SOC
 
Date 2011-10-27T01:00:18Z
2011-12-15T09:12:38Z
2011-10-27T01:00:18Z
2011-12-15T09:12:38Z
2000
 
Type Proceedings Paper
 
Identifier ULTRAFINE GRAINED MATERIALS,33-40
0-87339-472-0
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16188
http://hdl.handle.net/100/2790
 
Source Symposium on Ultrafine Grained Materials at the 2000TMS Annual Meeting,NASHVILLE, TN,MAR 12-16, 2000
 
Language English