A novel strategy for fabricating biomimetic gradient metal-ceramic composites by dynamic freeze casting and pressure infiltration. (1st July 2019)

• Record Type: Journal Article
• Authors: Yang, Li-Kai; Shen, Ping; Guo, Rui-Fen; Li, Yun-Liang; Jiang, Qi-Chuan
• Is Part Of: Scripta materialia. Number 167(2019)
• Page Start: 101
• Page End: 104
• Publication Date: 2019-07-01
• Subjects: Dynamic freeze casting -- Pressure infiltration -- Gradient materials -- Metal-ceramic composites; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2019.04.004
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: We proposed a new strategy of combining dynamic freeze casting with pressure infiltration and successfully prepared an antler-bone-inspired gradient metal-ceramic composite. As exemplified by Al-7Si-5Cu/Al2 O3, the resultant composite exhibits the unique mechanical properties of being externally hard, strong, and wear-resistant but internally soft and tough owing to its compositional and structural gradients and delicate lamellar microstructures. This study offers a feasible, flexible, and scalable approach to designing and preparing functionally gradient materials with biomimetic structural features and exceptional properties. Graphical abstract: Unlabelled Image