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发布时间：2019-03-09

论文类型：期刊论文

发表时间：2014-04-01

发表刊物：COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING

收录刊物：Scopus、EI、SCIE

卷号：59

页面范围：105-114

ISSN号：1359-835X

关键字：Smart materials; Electrical properties

摘要：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. (C) 2014 Elsevier Ltd. All rights reserved.