Pb-Sn合金固-液转变过程的内耗行为  

INTERNAL FRICTION BEHAVIOUR OF THE SOLID-LIQUID TRANSITION IN THE Pb-Sn ALLOYS

作　　者：梁云峰[1] 水嘉鹏[1] 陈刚[1] 朱震刚[1] 

机构地区：[1]中国科学院固体物理研究所内耗与固体缺陷开放研究实验室,合肥230031

出　　处：《物理学报》2000年第7期1327-1330,共4页Acta Physica Sinica

基　　金：国家自然科学基金! (批准号 :198740 67);中国科学院"九五"基础研究重大项目基金! (批准号 :KJ 95 2 J1 412 )

摘　　要：在连续升温过程中 ,测量了Pb Sn合金的内耗 .实验发现 :在共晶成分范围内 ,伴随着Pb Sn合金的固—液转变 ,内耗值出现突然下降 .内耗值的下降幅度与Pb Sn合金成分有关 .固—液转变过程中的内耗是由材料结构变化或弛豫时间变化引起的 .The internal friction of the Pb\|Sn alloys was measured during heating process from room temperature to high temperature.It is reported that there is a sudden drop in the internal friction curves of the vibration systems with the presence of solid\|liquid transition of the Pb\|Sn alloys.The decrement of the internal friction varies with the content of tin.It is proposed that these variations are related with the structure variation of the Pb\|Sn alloys during solid-liquid transition.

关 键 词：内耗 固-液转变 PB-SN合金 

分 类 号：O483[理学—固体物理]