Formation of ceramics using transformation from metastable system to equilibrium system and its application

亚稳体系向平衡体系转变陶瓷的形成及其应用

• 批准号: 20760506
• 负责人: NAGIRA Tomoya
• 金额: $ 2.75万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20760506/
• 关键词: 過冷融液; 共晶セラミックス; 準安定; 準安定系; セラミックス

The purpose of this study is to develop the new ceramics formation process using the undercooled melt produced by melting of the metastable system. The transformation mode from the metastalbe eutectic to the equilibrium eutectic and the mechanism of the eutectic growth from undercooled melt were clarified by the crystallographic orientation analysis and the three-dimensional observation. The microstructural control for the application of our process was performed, and the mechanical properties and the formability were investigated

本研究的目的是发展一种新的陶瓷成型工艺，利用亚稳系统熔化产生的过冷熔体。通过晶体学取向分析和三维形貌观察，阐明了过冷熔体中亚稳共晶向平衡共晶的转变方式和共晶长大机制。对该工艺进行了组织控制，并对材料的力学性能和成形性能进行了研究

项目成果

Al_2O_3-M_2O_3(M=Dy, Ho, Fr)系における鞍定共晶の再溶解を利用した平衡共晶組織の作製

Al_2O_3-M_2O_3(M=Dy,Ho,Fr)系鞍座常数共晶重熔制备平衡共晶组织

• 发表时间: 2009
• 作者: T. Nagira;H. Yasuda;M. Yoshiya K. Uesugi;T. Katou;T.Nagira;柳楽知也;前野光彦
• 通讯作者: 前野光彦

Al_2O_3-YAG eutectic growth evolution in the solidification accompanied by the melting of the Al_2O_3-YAP metastable eutectic

Al_2O_3-YAG共晶在凝固过程中的生长演化伴随着Al_2O_3-YAP亚稳共晶的熔化

• 发表时间: 2008
• 作者: 柳楽知也;秦野了輔;安田秀幸;吉矢真人;古澤寛顕;上杉健太朗;柳楽知也;秦野了輔;R. Hatano
• 通讯作者: R. Hatano

Unidirectional sodlification of Al_2O_3-YAG from an undercooled melt produced by melting of Al_2O_3-YAP metastable eutectic

Al_2O_3-YAP亚稳共晶熔融产生的过冷熔体中Al_2O_3-YAG的单向凝固

• 发表时间: 2009
• 作者: T. Nagira;R. Hatano;M. Maeno;M. Yoshiya;H. Yasuda
• 通讯作者: H. Yasuda

準安定共晶を利用した一方向溶解・凝固Al_2O_3-YAG共晶の組織形成

亚稳态共晶Al_2O_3-YAG共晶组织的单向熔化与凝固

• 发表时间: 2008
• 作者: 柳楽知也;秦野了輔;安田秀幸;吉矢真人;古澤寛顕;上杉健太朗
• 通讯作者: 上杉健太朗

High Temperature Flexural Strength of the Al_2O_3-YAG Eutectic Composites Produced By Using Transformation From Metastable Eutectic to Equilibrium Eutectic

亚稳共晶向平衡共晶转变Al_2O_3-YAG共晶复合材料的高温弯曲强度

• 发表时间: 2009
• 作者: T. Nagira;H. Yasuda;M. Yoshiya;T. Katou
• 通讯作者: T. Katou