Design of Multi-functional and Smart Composites

在这个项目中，“多功能复合材料的谐波设计”分为以下几个主题：(1)高性能、新型功能金属传感/致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、无损评价等更为有效的材料开发工艺。这一年的学位（2002年）是这个项目的最后一年，我通过总结每个成员的研究成果来提出一个重要的观点。主要研究结果如下：1)开发了原设计的用于生产传感器/执行器材料元件的快速凝固熔融纺丝机（单辊法和双辊法）。通过控制极细柱状晶粒的组织结构，成功制备出了强度、延展性和性能均有所提高的极细（直径0.03 ~ 0.1mm）和极薄（厚度20 ~ 200 μm，长度1 ~ 200cm，宽度1 ~ 20mm）箔片。(2)研制了相变温度为-20 ~ 1260℃的tinpd、NiAlMn、RuTa、RuNb系合金和线性驱动TiNiCo合金的热弹性形状记忆合金（SMAs）。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，并在2002年秋季的日本东北分会上获得了JIM海报展示奖。(3)采用MO-CVD法制备氧传感用多层传感材料，制作电极膜/离子导电膜/电极膜/PZT/电极膜结构器件。(4)在聚合物基体中加入铁磁性SMA填料的“智能复合板”。它可以检测内部损伤和形状恢复效果，以抑制损伤功能。此外，与韩国团队合作开发了热弹性形状记忆TiNi纤维增强/铝合金基体，并可通过修正有限元分析模拟和预测其机械强度和变形行为。因此，我确定我几乎达到了一个目标，并将结果显示为这个项目的最后一年，并将研究对象概括为上述内容。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