SiC<sub>P</sub>/ZL104泡沫复合材料的阻尼性能

于思荣; 罗彦茹; 张英波; 刘家安

SiC_P/ZL104泡沫复合材料的阻尼性能

1.
吉林大学汽车材料教育部重点实验室, 长春 130025;
2.
吉林大学南岭校区材料科学与工程学院, 长春 130025

基金项目: 吉林大学'985工程'项目

详细信息

通讯作者:
于思荣, 教授, 博士生导师, 主要从事复合材料制备及性能表征 E-mail:yusr@jlu.edu.cn

中图分类号: TG331
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出版历程
- 收稿日期: 2006-03-19
- 修回日期: 2006-06-11
- 刊出日期: 2007-02-14

Damping properties of SiC_P/ZL104 composite foams

1.
Key Laboratory of Automobile Materials of Ministry of Education, Jilin University, Changchun 130025, China;
2.
College of Materials Science and Engineering, Nanling Campus, Jilin University, Changchun 130025, China

More Information

Corresponding author:
YU Sirong

摘要

摘要: 对采用熔体直接发泡法制备的SiC_P /ZL104泡沫复合材料进行了阻尼性能和机理的分析。研究结果表明: 在孔径一定的条件下, SiC_P/ZL104泡沫复合材料室温下的阻尼性能表现为损耗因子随着孔隙率的增大呈非线性递增趋势, 且递增幅度越来越小; SiC_P/ZL104泡沫复合材料的阻尼性能好于相同孔隙率的泡沫铝、 SiC_P/ZL104复合材料和ZL104的阻尼性能; SiC_P/ZL104泡沫复合材料的损耗因子随着SiC_P含量的增加和SiC_P粒度的减小而增大。SiC_P/ZL104泡沫复合材料内部的气泡以及高密度位错对其阻尼性能的提高起主要作用。
- SiC_P/ZL104泡沫复合材料 /
- 孔隙率 /
- 损耗因子 /
- 位错
Abstract: The damping properties and damping mechanism were investigated for SiC_P/ZL104 composite foams, fabricated by the method of direct melt foaming. The results show that under the conditions of the same pore-diameter, the loss factors of SiC_P/ZL104 composite foams are non-linear rising with the increase of porosity at the ambient temperature, and the incremental changes lessen gradually. The damping properties of SiC_P/ZL104 composite foams are better than those of foam aluminum, SiC_P/ZL104 composites and ZL104 alloy. The loss factors of SiC_P/ZL104 composite foams increase with the increase of the content of SiC_P and the decrease of granularity of SiC_P. Pores and high density dislocations in SiC_P/ZL104 composite foams contribute to their damping properties.
- SiC_P/ZL104 composite foams /
- porosity /
- loss factor /
- dislocation