Authors
Qian WANG, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo 315201, China
Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
Salvatore GRASSO, School of Engineering & Materials Science and Nanoforce Technology Ltd., Queen Mary University of London, Mile End Road, London E1 4NS, UK
Chunfeng HU, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo 315201, China
Haibin ZHANG, China Academy of Engineering Physics, Mianyang 621900, China
Shu CAI, Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
Yoshio SAKKA, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0047, Japan
Qing HUANG, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo 315201, China
Keywords
ceramic, synthesis, microstructure, property, damage tolerance
Abstract
Single-phase Y4Al2O9 (YAM) powders were synthesized via solid-state reaction starting from nano-sized Al2O3 and Y2O3. Fully dense (99.5%) bulk YAM ceramics were consolidated by spark plasma sintering (SPS) at 1800 ℃. We demonstrated the excellent damage tolerance and good machinability of YAM ceramics. Such properties are attributed to the easy slipping along the weakly bonded crystallographic planes, resulting in multiple energy dissipation mechanisms such as transgranular fracture, shear slipping and localized grain crushing.
Publisher
Tsinghua University Press
Recommended Citation
Qian WANG, Salvatore GRASSO, Chunfeng HU et al. Spark plasma sintering of damage tolerant and machinable YAM ceramics. Journal of Advanced Ceramics 2013, 2(2): 193-200.
DOWNLOADS
Since October 27, 2020
COinS
