Shape forming of ceramics via gelcasting of aqueous particulate slurries

Bulletin of materials science

R K Kamboj¹  S Dhara¹  M Pradhan¹  P Bhargava¹ 

[1] Materials Science Centre, Indian Institute of Technology, Kharagpur 721 302, India$$Materials Science Centre, Indian Institute of Technology, Kharagpur 721 302, IndiaMaterials Science Centre, Indian Institute of Technology, Kharagpur 721 302, India$$

关键词: Near net shape;    green machining;    gelcasting;    ceramic foam;    complex shape.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Gelcasting is a promising technique for shape forming of bulk dense or porous ceramic, metal structures. The process offers a number of advantages over processes such as slip casting, injection molding in forming complex ceramic shapes. It is shown here that the optimization of slurry rheology, choice of mold material, mold design and the drying conditions have a significant role in the overall success of the process. In this process, components of simple or complex shapes can be produced to near net shape by direct casting. If required complex shapes can also be produced by machining the green gelcast bodies. The process of gelcasting also has a lot of potential in forming highly porous ceramic shapes.

【 授权许可】

Unknown