块体非晶合金Zr_(55)Cu_(30)Al_(10)Ni_5玻璃转变温度附近晶化的同步辐射X光小角散射研究  

Study on crystallization of Zr_(55)Cu_(30)Al_(10)Ni_5 bulk amorphous alloy near glass transition temperature by SAXS

作　　者：柳义[1] 柳林[2] 王俊[3] 董宝中[3] 

机构地区：[1]中国科学院上海应用物理研究所,上海201800 [2]华中科技大学材料学院,武汉430074 [3]中国科学院高能物理研究所同步辐射实验室,北京100039

出　　处：《核技术》2004年第3期169-172,共4页Nuclear Techniques

基　　金：国家自然科学基金(59971020;50171028)资助

摘　　要：应用同步辐射X光小角散射法对块体非晶合金Zr_(55)Cu_(30)Al_(10)Ni_5在玻璃转变温度附近的晶化进行研究。实验表明:在400—442°C的退火温度范围内,样品中已有结晶颗粒析出,析出颗粒的大小差别不明显,但析出颗粒的数量与退火温度及退火时间有关。退火时间一定时,析出的颗粒数量随退火温度的升高而增多,退火温度一定时,析出的颗粒数量随退火时间的增加而增多。The crystallization of Zr_(55)Cu_(30)Al_(10)Ni_5 bulk amorphous alloy near the glass transition temperature has been investigated by synchrotron radiation X-ray small angle scattering (SAXS). The experimental results show that of crystal particles in amorphous matrix are formed during the annealing of 400°C — 442°C which is near glass transition temperature. It is found that there are no obvious differences in the size of precipitated crystal particles and that the number of precipitated particles increases with the increase of annealing time at the given annealing temperature, or increases with the increase of annealing temperature in the given annealing time.

关 键 词：同步辐射 X光小角散射 块体非晶合金 玻璃转变 等温退火 

分 类 号：O722[理学—晶体学]