Basic Studies on the Development for Ceramic/Metal/Organic Intermaterials

陶瓷/金属/有机中间材料发展基础研究

基本信息

批准号：
09450262
负责人：
NIIHARA Koichi
金额：
$ 8.26万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

In this research project, we have focused on the development of intermaterials with excellent multifunctionality. For over the decades we have concentrated to design nanocomposite with ceramic-based materials, and succeeded to develop several kinds of the nanocomposites. Based on this concept we extend the materials system to metal and organic composites. All of these result imply us the possibility of multiple functionality of materials with the nano-and molecular-level control. Therefore we have concentrated to develop such high-performance materials in ceramic/metal/organic system, that is "Intermaterial".In this research, followed results have been obtained.(1) By developing new materials processing method, several kinds of ceramic-based nanocomposites have been fabricated in silicon nitride, alumina and zirconia ceramics. These materials exhibited excellent multiple properties in mechanical, magnetic and electric functions. All these properties were explained by the size effect of … More nanosized second phase dispersion in ceramic matrices.(2) When small amount of dopant was added into ceramics, materials structures have been modified in molecular-level. These materials seems to be monolithic phase but was found to have atomic and/or cluster (molecular) leveled inhomogeneity to show enhanced properties.(3) Ceramic/metal and polymer/ceramic composite materials have been successively prepared by using ultrasonic-assisted self-organization processes. These materials could be prepared at room-temperature without any thermal energies. For the polymer/ceramic materials, novel tactile sensing has been achieved by addition of conductive particles. This material varied its electron conductivity by applied stresses and thus excellent response have been observed. Also this composites have commercially applied as a tactile sensor.In conclusion this research project has successively conducted to develop novel intermaterials consisted of ceramic, metal and organic materials composed at atomic, cluster and nanometer-scale. All these results might be a first reading case for the new kind of material "intermaterial" which can solve various problem toward the coming 21st century. Less

在这个研究项目中，我们专注于开发具有优异多功能性的中间材料，几十年来我们致力于设计陶瓷基材料的纳米复合材料，并成功开发了多种纳米复合材料。所有这些结果都意味着我们可以在纳米和分子水平上控制材料的多种功能，因此我们集中精力开发陶瓷/金属/有机材料的高性能材料。那是“Intermaterial”。本研究取得了以下成果：(1)通过开发新的材料加工方法，在氮化硅、氧化铝和氧化锆陶瓷中制备了几种陶瓷基纳米复合材料，这些材料表现出优异的多种性能。所有这些性能都可以通过陶瓷基体中纳米级第二相分散体的尺寸效应来解释。(2) 当陶瓷中添加少量掺杂剂时，材料结构发生了改变。这些材料看似整体相，但被发现具有原子和/或簇（分子）水平的不均匀性，从而显示出增强的性能。（3）利用超声波成功制备了陶瓷/金属和聚合物/陶瓷复合材料。 -辅助自组织过程。这些材料可以在室温下制备，无需任何热能。对于聚合物/陶瓷材料，通过添加导电颗粒实现了新颖的触觉传感。该复合材料在施加应力时具有电子传导性，因此具有优异的响应，已在商业上应用于各种触觉传感器。总而言之，该研究项目已成功开发出由陶瓷、金属和有机材料组成的新型中间材料。所有这些结果可能是新型材料“中间材料”的首读案例，它可以解决即将到来的21世纪的各种问题。