Fabrication of Multi-Functional Ceramic Composites by Slurry Stacking Method

浆料堆积法制备多功能陶瓷复合材料

• 批准号: 03555146
• 负责人: WATANABE Ryuzo
• 金额: $ 3.52万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03555146/
• 关键词: Materials processing; Powder metallurgy; Composite materials; Functionally gradient materials; Slurry stacking; Material design; Property improvement; 粉体スプレー積層法; 傾斜組成制御; 多機能; 複合セラミックス; 粉体スプレ-積層法; 3次元組成分布

A powder spray stacking apparatus with a computer-controlling system has been developed for fine stacking of mixed ceramic/metal powders. Functionally gradient materials with a continuous microstructural transition from ceramics to metals have been successfully fabricated using this process followed by hot-isostatic pressing.In the present process, metal and ceramic powders with different mixing ratios were mixed homogeneously in the suspension using ethanol as a solvent, and were sprayd onto a preheated substrate with continuously graded composition by the computer control. The deposited powder compacts were then cold-isostatically pressed, glass-encapsulated and hot-isostatically pressed. The microstructural observation showed that this process could precisely control the various composition profile with the minimum control size of 0.01mm in thickness. It has been shown that the metal/ceramic functionally gradient materials fabricated by the present process have larger fracture resistance and thermal shock resistance than the monolithic Zirconia ceramics.

已开发出一种带有计算机控制系统的粉末喷涂堆叠设备，用于精细堆叠混合陶瓷/金属粉末。使用该工艺，然后进行热等静压，成功制造了具有从陶瓷到金属的连续微观结构转变的功能梯度材料。在本工艺中，使用乙醇作为溶剂，将不同混合比例的金属和陶瓷粉末在悬浮液中均匀混合，并通过计算机控制将连续分级的组合物喷涂到预热的基材上。然后将沉积的粉末压块进行冷等静压、玻璃封装和热等静压。显微组织观察表明，该工艺可以精确控制各种成分分布，最小控制尺寸为0.01mm厚度。结果表明，采用本方法制备的金属/陶瓷功能梯度材料比整体氧化锆陶瓷具有更高的抗断裂性能和抗热震性能。

项目成果

H.Yamaoka et.al A.Kawasaki,R.Watanabe: "Fabrication of Functionally Gradient Material by Slurry Stacking and Sintering Process" Ceramic Transactions,“Functionally Gradient Materials". 34. 165-172 (1993)

H. Yamaoka 等人 A.​​ Kawasaki、R. Watanabe：“通过浆料堆积和烧结工艺制造功能梯度材料”《Ceramic Transactions》，“功能梯度材料”34. 165-172 (1993)。

A.Kawasaki, R.Watanabe, M.Tanaka: "Powder Metallurgical Fabrication of SiC-AlN/Mo Functionally Gradient Material Ceramic Transactions" "Functionally Gradient Materials", American Ceramic Society. vol.34. 189-196 (1993)

A.Kawasaki、R.Watanabe、M.Tanaka：“SiC-AlN/Mo 功能梯度材料的粉末冶金制造”《陶瓷交易》“功能梯度材料”，美国陶瓷学会。

H.Yamaoka, M.Yuki, K.Tahara, T.Irisawa, A.Kawasaki, R.Watanabe: "Fabrication of Functionally Gradient Material by Slurry Stacking and Sintering Process Ceramic Transactions" "Functionally Gradient Materials", American Ceramic Society. vol.34. 165-172 (199

H.Yamaoka、M.Yuki、K.Tahara、T.Irisawa、A.Kawasaki、R.Watanabe：“通过浆料堆积和烧结工艺制造功能梯度材料”《陶瓷交易》“功能梯度材料”，美国陶瓷学会。

H.Yamaoka et.al,A.Kawasaki,R.Watanabe: "Fabrication of Functionally Gradient Material by Slurry Stacking and Sintering Process" Ceramic Transactions,“Functionally Gradient Materials". 34. 165-172 (1993)

H. Yamaoka 等人、A. Kawasaki、R. Watanabe：“通过浆料堆积和烧结工艺制造功能梯度材料”《Ceramic Transactions》，“功能梯度材料”34. 165-172 (1993)。

A.Kawasaki,R.Watanabe,M.Tanaka: "Powder Metallurgical Fabrication of SiC-AIN/Mo Functionally Gradient Material" Ceramic Transactions,“Functionally Gradient Materials". 34. 189-196 (1993)

A. Kawasaki、R. Watanabe、M. Tanaka：“SiC-AlN/Mo 功能梯度材料的粉末冶金制造”《陶瓷交易》，“功能梯度材料”34. 189-196 (1993)。