Ultrasonic studies of onion-like carbons/polydimethysiloxane composites

被引：0
|
作者：
Samulionis, V. [1 ]
Macutkevic, J. [1 ]
Banys, J. [1 ]
Belovickis, J. [1 ]
Shenderova, O. [2 ]
机构：
[1] Vilnius Univ, Fac Phys, LT-10222 Vilnius, Lithuania
[2] Int Technol Ctr, Raleigh, NC 27715 USA
来源：
2014 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS) | 2014年
关键词：
ultrasonic attenuation; OLC nanoparticles; polymer nanocomposites;
D O I：
10.1109/ULTSYM.2014.0494
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The temperature dependencies of longitudinal ultrasonic velocity and attenuation in polydimethysiloxane (PDMS) with onion- like carbons (OLC) composites have been measured. In the region of the glass transition the ultrasonic velocity dispersion and large ultrasonic attenuation maxima were observed. The positions of ultrasonic attenuation peaks were slightly shifted to higher temperatures after doping PDMS with OLC nanoparticles. A significant increase of ultrasonic attenuation with increasing OLC concentration was observed at room temperature and such behavior can be attributed to ultrasonic - OLC interaction in polymer matrix.
引用
收藏
页码：1986 / 1987
页数：2
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