Nanotip-induced ultrahigh pressure-sensitive composites: Principles, properties and applications

作者：Han Baoguo^*; Wang Yunyang; Sun Shengwei; Yu Xun; Ou Jinping

来源：Composites Part A: Applied Science and Manufacturing , 2014, 59: 105-114.

DOI：10.1016/j.compositesa.2014.01.005

• Smart materials
• Electrical properties

Spiky spherical nickel powders with sharp nanotips on their surface are excellent fillers for developing pressure-sensitive composites. The sharp nano-tips are responsible for generating field-assisted tunneling conduction, which leads to the strong responses of electrical conductivity of the composites to external force or deformation. The nanotip-induced ultrahigh pressure-sensitive composites can be used to develop new sensors, switches and controls for a wide range of applications including electronics, transport, space, medicine, defense, textiles, oil and gas, and civil engineering. In this paper, we examine a systematical review of research progress on the nanotip-induced ultrahigh pressure-sensitive composites, with attentions to mechanism of pressure-sensitivity, sensing performances, and applications of the composites. Future challenges in the development and application of the nanotip-induced ultrahigh pressure-sensitive composites are also discussed.

• 出版日期2014-4
• 单位大连理工大学; 哈尔滨工业大学