Velocity of ultrasonic waves in ferrocomposites

被引：2

作者：

Kol'tsova, IS ^{[1
]}

Zinov'eva, EN ^{[1
]}

Mikhalev, AY ^{[1
]}

机构：

[1] St Petersburg State Univ, Inst Phys, St Petersburg 198904, Russia

来源：

ACOUSTICAL PHYSICS | 2005年 / 51卷 / 05期

关键词：

D O I：

10.1134/1.2042576

中图分类号：

O42 [声学];

学科分类号：

070206 [声学]; 082403 [水声工程];

摘要：

The velocity of ultrasonic waves with a frequency of 3 MHz is experimentally studied in a wide range of volume concentrations (0.1-50%) of ferrite particles in the matrix. The mean size of particles is 6 mu m. The results of the study show that the concentration dependence of the velocity of ultrasonic wave propagation in ferrocomposites has three specific regions, in which the concentration coefficient of velocity changes from negative to positive passing through a minimum in the percolation region. (c) 2005 Pleiades Publishing, Inc.

引用

页码：566 / 570

页数：5

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