Ultralow temperature anelasticity of aluminum-magnesium alloys

被引：0
|
作者：
Duffy, W
机构：
来源：
JOURNAL DE PHYSIQUE IV | 1996年 / 6卷 / C8期
关键词：
D O I：
10.1051/jp4:19968178
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Results of internal friction measurements on the commercial aluminum-magnesium alloys 5052, 5086 and 5486 are reported here over the temperature range 50 mK to 300 K, and compared with published data on alloy 5056. Effects of heat treatment and explosive bonds on the internal friction are evaluated. The quality factor of proposed multi-layer aluminum-alloy spherical resonant-mass detectors of gravity waves is shown to be seriously degraded, if layer interfaces exhibit large-amplitude wavy explosive bonds. Shear modulus variations from 50 mK to 10 K are obtained from high-resolution frequency measurements.
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页码：829 / 832
页数：4
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