%0 Journal Article %A KANG Hai-feng %A LI Fei %A ZHAO Yan-jie %A XU Hua-ping %A WANG Fei %A LÜ He-ping %A SUN Bao-de %T Research Status on Ceramic Cores and Shells for Superalloy Hollow Blades Investment Casting %D 2013 %R 10.3969/j.issn.1001-4381.2013.08.014 %J Journal of Materials Engineering %P 85-91 %V 0 %N 8 %X The application background and key role as well as the basic performance requirements of ceramic cores and shells used for the investment casting of superalloy hollow blade were introduced,and the future development direction of ceramic cores and shells was described. The raw materials of the ceramic cores and shells, together with the manufacture methods and their influence on the properties were reviewed respectively. The research status and existing problems of leaching technics of ceramic cores were introduced. In addition, the important influence of positioning accuracy and the consistency of ceramic cores and shells on the quality of superalloy hollow blade was evaluated. %U https://jme.biam.ac.cn/EN/10.3969/j.issn.1001-4381.2013.08.014