%0 Journal Article
%T A NEW APPROACH TO SYNTHESIS OF BULK AMORPHOUS ALLOYS BY USING HIGH-PRESSURE COMPACTION OF THE MELT-SPUN AMORPHOUS RIBBONS<br>非晶态合金条带高压复合法制备大块非晶态合金
%A ZHOU Fei
%A LU Ke
%A <br>周飞
%A 卢柯
%J 材料研究学报
%D 1997
%I 
%X A hot high-pressure compaction of melt--spun amorphous metallic ribbons which produces fully-densed bulk amorphous samples, was developed by using an amorphous Ni69Cr7Fe2.5Si8B13.5 alloy ribbons as a model material. Under a pressure of 1.5GPa, the crystallization onset temperature was found to be increased by about 40K, resulting in a widened supercooled liquid temperature region of about 60K beneath the onset of crystallization. Consolidation of the amorphous ribbons in temperatures of 733~ 773 K with a pressure higher than 1.5GPa yielded bulk amorphous compacts with full density (>99% of the theoretical value). This achievement was attributed to the significant homogenous viscous flow of materials in the supercooled liquid state.
%K bulk amorphous alloys high-pressure compaction viscous flow<br>非晶态合金
%K 高压复合
%K 粘滞流变
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=C101C4C04993B4D94FCD8446E6CBEB3B&aid=447DB046C9B60F3740C63592036F7B41&yid=5370399DC954B911&vid=708DD6B15D2464E8&iid=0B39A22176CE99FB&sid=B344543C2864D684&eid=B47A0E731AF43EB2&journal_id=1005-3093&journal_name=材料研究学报&referenced_num=8&reference_num=2