Reduction of friction force by using a piezoelectric effect and development of low frictional coatings.

随着全球环境和能源问题的日益严重，发展节能技术被认为是当务之急。本研究采用氧化锌作为压电层材料，实现了低摩擦涂层。结果表明，由于压头施加压力，氧化锌的压电效应起作用，产生排斥力的现象。这一结果是一种基本技术，它使在石油或真空条件下不提供任何特殊能量的情况下，通过重力产生的载荷来减少摩擦力成为可能。

With global environmental and energy problems becoming increasingly serious, the development of energy saving technologies is now considered a high priority. In present research, low frictional coatings were realized by using the piezoelectric material coatings of zinc oxide. It was revealed that a phenomenon in which the piezoelectric effect of zinc oxide functions due to pressure applied from an indenter, generating a repulsion force. This result is a basic technology which makes it possible to realize reductions in frictional force by the load resulting from gravity, without supplying any kinds of special energy in oil or vacuum conditions.