Investigation of sound properties of nanostructured pure and composite ceramics

被引：0
|
作者：
Zhang, XR [1 ]
Li, GH [1 ]
Zhang, T [1 ]
Gan, CM [1 ]
Zhang, LD [1 ]
Jin, YP [1 ]
Zhang, GD [1 ]
机构：
[1] Nanjing Univ, Inst Acoust, State Key Lab Modern Acoust, Nanjing 210093, Peoples R China
来源：
ACTA PHYSICA SINICA-OVERSEAS EDITION | 1999年 / 8卷
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The influence of the grain size on the ultrasonic velocity and attenuation for pure nano-ceramics is investigated by a contactless laser ultrasonic technique. Results show that the ultrasonic velocities of pure nano ceramics are lower than that of composite nano-ceramics The velocity and elastic moduli decrease with decreasing grain size, but the attenuation incresases; with decreasing grain size. The results, discussion, and the comparison between the results of pure and composite nano-ceramics are presented.
引用
收藏
页码：S234 / S240
页数：7
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