J Mater Sci Technol ›› 1997, Vol. 13 ›› Issue (4): 309-311.
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Xiangcheng SUN; Mingchuan YANG; Feng YE; Xiukui SUN and Wenduo WEI(State Key Lab. for RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China)Yingda YU and Dehai PING(Lab. of Atomic Imaging of Solids, Institute of Metal Resea