Piezoresistive TiB2/silicone rubber composites for circuit breakers

被引：15
作者：
Jeong, Dae-Yong [2 ]
Ryu, Jungho [1 ]
Lim, Yun-Soo [2 ]
Dong, Shuxiang [3 ]
Park, Dong-Soo [1 ]
机构：
[1] Korea Inst Mat Sci KIMS, Funct Ceram Res Grp, Gyeongnam 641831, South Korea
[2] Myongji Univ, Dept Mat Sci & Engn, Gyeonggi Do 449728, South Korea
[3] Peking Univ, Coll Engn, Beijing 1000871, Peoples R China
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2009年 / 149卷 / 02期
关键词：
Piezoresistive; Composite; TiB2; Silicone; Circuit breaker;
D O I：
10.1016/j.sna.2008.11.022
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Piezoresistive composites with high hardness and conductivity are required for circuit breakers for multi-cycle operation under large current flow. Based on the simulation results for the mechanical behavior of piezoresistive composites, we developed piezoresistive composites with conductive TiB2 ceramic materials and silicone rubber. TiB2 up to 70 vol.% was embedded into the polymer matrix without any mechanical deterioration while the electrical resistance was decreased with increasing TiB2 content. Piezoresistive composites with 70 vol.% TiB2 particles exhibited a resistance of 1.7 Omega at a pressure of 1.1 MPa. A circuit breaker with the fabricated piezoresistive composites acted as a switch with a response time of around 2 ms. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：246 / 250
页数：5
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