ULTRASONIC WAVE-PROPAGATION IN SAP COMPACTS

被引:3
|
作者
BRETTELL, JM
机构
[1] Department of Physics, University of New England, Armidale
关键词
D O I
10.1088/0022-3727/23/5/024
中图分类号
O59 [应用物理学];
学科分类号
摘要
Sound velocity measurement have been made on sintered aluminium powder (SAP) compacts in the density range 1400-2400 kg m-3. The sound velocity, and hence the acoustic impedance, is noticeably reduced in the lower-density compacts suggesting they may have some application as quarter-wave acoustic couplers. © 1990 IOP Publishing Ltd.
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页码:620 / 621
页数:2
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