振动混合颗粒形成的反巴西果分层及其相图的实验观测

被引:13
作者
史庆藩
阎学群
厚美瑛
牛小娟
陆坤权
机构
[1] 中国科学院物理研究所
[2] 中国科学院物理研究所 北京 北京理工大学物理系
[3] 北京
[4] 北京 北京理工大学物理系
[5] 北京
[6] 北京
关键词
颗粒物质; 反巴西果; 三明治结构; 振动分离;
D O I
暂无
中图分类号
O39 [应用力学];
学科分类号
摘要
在混合均匀的铜颗粒和玻璃颗粒受到不同加速度Г和频率f的正弦振动怍用下,获得了巴西果(BN)、反巴西果(RBN)、三明治(Sandwich)的不同分层相构型及其相图,首次观测到小颗粒在上大颗粒在下的稳定的反巴西果分层(reverse Brazil Nut segregation)现象,还观测到区分不同分层区域的Г值具有滞后效应,表明分层过程与系统的初始条件有关.
引用
收藏
页码:328 / 330
页数:3
相关论文
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