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Materials Science Forum Vols. 426-432 (2003) pp 1951-1956 Online available since 2003/Aug/15 at www.scientific.net © (2003) Trans Tech Publications, Switzerland doi:10.4028/www.scientific.net/MSF.426-432.1951 All rights reserved. No part of contents of this paper may be reproduced or transmitted in any form or by any means without the written permission of TTP, www.ttp.net. (ID: 152.14.136.96, NCSU North Carolina State University, Raleigh, United States of America-26/08/13,10:05:22)
