Superplasticity in Ceramics

陶瓷中的超塑性

• 批准号: 08242103
• 负责人: SAKUMA Taketo
• 金额: $ 109.57万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-08242103/
• 关键词: superplasticity; grain boundary; grain boundary plasticity; ceramics; 粒界すべり

The project "Superplasticity in Ceramics" aims to examine superplastic phenomena in fine-ceramic material. This project also aims to reveal a mechanism of superplastic deformation in ceramics, and to develop a new industrial technology for superplastic forming of ceramics. During the research term from 1996 to 1998, we succeed in revealing role of grain boundary for the superplasticity in ceramics, establishing the mechanisms of superplastic deformation and in terms of "grain boundary plasticity", which is a new concept for superplastic phenomena. We organize or make a key role in several conference and meetings, such as (1) International Conference PRICM-3 special session "Superplasticity and Superplastic forming", (2) International Conference on "Towards Innovation in Superplasticity I and II" or (3) Open meeting "Towards Innovation in Superplasticity". One of our key topics of out results is to examine the superplastic phenomena from the viewpoint of microstructure in grain boundary. This type of approach is no doubt one of the most effective ways to break through the present situation in superplastic research in advanced materials.

“陶瓷中的超塑性”项目旨在研究精细陶瓷材料中的超塑性现象。本项目还旨在揭示陶瓷超塑性变形的机理，并开发陶瓷超塑性成形的新工业技术。在1996 ~ 1998年的研究中，我们成功地揭示了晶界在陶瓷超塑性中的作用，建立了超塑性变形机制，提出了“晶界塑性”这一超塑性现象的新概念。我们组织或在一些会议中发挥关键作用，例如（1）PRICM-3国际会议特别会议“超塑性和超塑性成形”，（2）国际会议“超塑性I和II的创新”或（3）公开会议“超塑性创新”。从晶界微观结构的角度研究超塑性现象是本研究的一个重要课题。这种方法无疑是突破先进材料超塑性研究现状的最有效途径之一。

项目成果

J.Zhao,Y.Ikuhara,T.Sakuma: "Grain growth of SiO_2-added zirconia annealed in the cubic/tetragonal two-phase region"J.Am. Ceram. Soc. 81. 2087-2092 (1998)

J.Zhao,Y.Ikuhara,T.Sakuma:“立方/四方两相区退火添加SiO_2氧化锆的晶粒生长”

Y.Takigawa,Y.Yoshizawa,T.Sakuma: "Superplasticity in Al_2O_3-20 vol % Spinel (MgO・1.5Al_2O_3) ceramics"Ceram. Inf. 24. 61-66 (1998)

Y.Takikawa、Y.Yoshizawa、T.Sakuma：“Al_2O_3-20 vol %尖晶石（MgO・1.5Al_2O_3）陶瓷的超塑性”Ceram Inf. 24. 61-66 (1998)

T. Sakuma: "A brief review on the project "Towards Innovation in superplasticity""Mater. Sci. Forum. 304-306. 3-10 (1993)

T. Sakuma：“对“超塑性创新”项目的简要回顾”

A.H.Chokshi, Y.Ikuhara, J.A.Hines and T.Sakuma: "The influence of trace impurities on the mechanical characteristics of a superplastic 2mol% yttria stabilized zirconia" Acta Mater.46. 5557-5568 (1998)

A.H.Chokshi,%20Y.Ikuhara,%20J.A.Hines%20and%20T.Sakuma:%20"%20影响%20of%20微量%20杂质%20on%20%20机械%20特性%20of%20a%20超塑性%202mol%

Y.Ikuhara,I.Tanaka,P.Thavorniti,T.Sakuma: "Grain boundary structure and chemical bonding state of Superplastic SiO_2-dcped TZP"J.Electron Microscopy. 46. 467-472 (1997)

Y.Ikuhara,I.Tanaka,P.Thavorniti,T.Sakuma：“超塑性SiO_2-dcped TZP的晶界结构和化学键状态”J.电子显微镜。