118 粒子アセンブルによる多機能・高機能化

概要

論文の詳細を見る
The PTC and NTC materials are defined that the electric resistance are steeply increased and decreased with an increase in temperature at around the Curie point, respectively. Composite particles of BaTiO_3 and In are fabricated by the forced electrification method. The packed bed of the composite particles have a good PTC property almost the same with the disk samples. The composite particles of NTC and In are also fabricated and their packed bed showed the NTC property. When the packed bed of PTC composite particles are piled up on that of the NTC composite particles, the layered packed bed shows V-type property. The V-type temperature dependency of the resistance is an addition of PTC and NTC. Furthemore, the composite particles of PTC, NTC and In are fabricated as follows. The PTC composite particles and NTC composite particles are composed by the forced electrification method. The packed bed of the two-step composite particles has also a V-type property. This is a good example of the particle assemblage that the multi-functional materials are created by integrating different kinds of particles.
一般社団法人日本機械学会の論文
2003-10-17