Design of Multi-functional and Smart Composites

在本项目中，“多功能复合材料的和谐设计”分为以下几个主题：(1)高性能和新型功能金属基传感器/驱动器材料元件的开发，(2)多层结构薄膜材料的设计与开发，(3)新型活性复合材料的设计与开发，(4)材料特性分析，为更有效的材料开发过程进行无损评估。A级学位(2002年)是本项目的最后一年，通过总结每个成员的研究成果，我提出了一个重点。主要研究成果如下：1)研制了用于制造传感器/驱动器材料元件的快速凝固熔体旋压机(单辊法和双辊法)。强度、塑性和性能得到改善的极细(直径0.03-0.1 mm)和薄箔(厚度：20-200μm，长度：1-200 cm，宽度：1-20 mm)样品为…(2)研制了相变温度为-20~1260℃的TiNiPd、NiAlMn、RuTa、RuNb系合金和线性致动TiNiCo合金的热弹性形状记忆合金。此外，还开发了新型铁磁SMA、FEPD、FePT和新型磁弹性磁致伸缩FeGa合金，并于2002年在东北分部举行的Jim Poster报告会上获奖。(3)采用MO-CVD方法制备多层氧敏传感器材料，以制备电极膜/离子导电膜/电极膜/PZT/电极膜结构的器件。(4)在聚合物基质中加入铁磁性SMA填料的“智能复合板”。它可以检测内部损伤以及形状恢复效果，以抑制损坏的功能。此外，还研制了热弹性形状记忆TiNi纤维增强/铝合金复合材料，并与韩国r团队合作，利用改进的有限元分析方法对复合材料的力学强度和变形行为进行了模拟和预测，最终确定了本课题的研究目标，并将本课题的研究成果概括为上述内容。较少

In this project, "Harmonic design of multi-functional composites" is divided in the following subjects,]i.e. (1) Development of high performance and new functional metal-based sensor/actuator material elements, (2) Design and development of multi-layered structure thin film materials, (3)Design and development of new active composites and these (4) materials characteristic analysis, non-destructive evaluation for more effective material development processes. A t his year degree (2002) was the last year of this project, and I put an important point by generalization of the research results from each member. The main results are concluded as follows.1) The originally designed, rapid-solidification melt-spinning machines (single and twin roll method) for producing the sensor/actuator material elements was developed. The very fine (diameter ; 0.03-0.1mm) and thin foil (thickness : 20-200 μm, length : 1-200cm, width : 1-20mm) samples with improved strength, ductility and performances were … More successfully manufactured by controlling microstructures of very fine columnar grains.(2) Thermoelasticv shape memory alloys (SMAs) of TiNiPd, NiAlMn, RuTa, RuNb system alloys which hadf their phase transformation temperature from-20 to 1260℃, and linearly actuation TiNiCo alloy was developed. In addition, new type of ferromagnetic SMAs, FePd, FePt, and new magneto-elastic magnetostrictive FeGa alloy also developed, which was awarded by JIM Poster presentation session in 2002 Fall meeting in Tohoku branch.(3) Multi-layered sensor material for sensing oxygen that was made by MO-CVD method to fabricate the device of electrode film/ion conduction film/electrode film/PZT/electrode film structures.(4)"Smart Composite Board" which has ferromagnetic SMA fillers in the polymeric matrix. It enables to detect the internal damages as well as shape recover effect for suppressing the damaged function. Besides, thermoelastic shape memory TiNi fiber reinforced/Al alloy matrix was developed and the mechanical strength and deformation behavior can be simulated and predicted by modified FEM analysis by the cooperation with Korea r team.In consequence, I identified that I almost achieved an aim and showed the results to do as the last year of this project and generalized a study subjects as things mentioned above. Less