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INFLUENCE OF PURIFICATION ON GLASS FORMABILITY AND THERMOSTABILITY OF METALLIC GLASS Ni_(75)B_(17)Si_8
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作者 XING Liqian CHEN Xichen, Institute of Physics, Academia Sinica, Beijing, ChinaYANG Gencang ZHOU Yaohe, Northwestern Polytechnic University, Xi’an, ChinaGUO Zhenqi, Northwestern University, Xi’an, China XING Liqian, Postdoctoral, Institute of Physics, Academia Sinica, Beijing 100080, China 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1992年第7期38-42,共5页
The glass formability of NiBSimelt and the thermostability of this metallic glass formedfrom the the melt can be enhanced by eliminating the heterogeneous catalystg. The purificationwas done by cyclical superheating m... The glass formability of NiBSimelt and the thermostability of this metallic glass formedfrom the the melt can be enhanced by eliminating the heterogeneous catalystg. The purificationwas done by cyclical superheating melt in special glasses and subsequently cyclicallysuperheating it in an electromagnetic levitation apparatus. The purified NiBSiamorphoussample sized up to 20 ~ I0 x 0.5 mm was prepared as four times the thickness of unpurifiedones. 展开更多
关键词 metallic glass glass formability thermostability Ni_(75)B_(17)Si_8
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Effects of melt overheating degree on undercooling degree and amorphous forming of Nd_9Fe_(85-x)Ti_4C_2B_x(x=10, 12) magnetic alloys
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作者 杨梦琳 潘晶 +2 位作者 刘新才 肖晓燕 詹玉勇 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2016年第10期2633-2640,共8页
The effectsof melt overheating degree on the undercooling degree and resultant solidification structures of Nd9Fe85-xTi4C2Bx(x=10, 12) glass-forming alloyswerestudied by differential thermal analysis combining with ... The effectsof melt overheating degree on the undercooling degree and resultant solidification structures of Nd9Fe85-xTi4C2Bx(x=10, 12) glass-forming alloyswerestudied by differential thermal analysis combining with solidification structure analysis. The results indicate that the undercooling degree of Nd9Fe85-xTi4C2Bx(x=10, 12) alloys significantly increaseswith the rise of melt overheating degree, and two overheating degree thresholds corresponding to the drastic increase of the mean undercooling degree are found for each of the alloys. The existence of two turning points of the mean undercooling degreescan be linked to the structure transitions inside the overheated melts, which result in the evident increase of volume fraction of amorphous phasein the solidified structures. 展开更多
关键词 magnetic alloy melt overheating undercoolingdegree structure transition glass formability
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