Title
Making Nanostructured Ceramics From Micrometer-Sized Powders Via Grain Refinement During Sps Sintering
Abstract
In this paper, we have demonstrated that dense bulk nanostructured ceramics can be synthesized from micrometer-sized powders by using an electrical field-activated sintering process. A dense Pb(Mg1/3Nb 2/3)O3-PbTiO3 ceramic with grain sizes of 20-100 nm was obtained from the starting powder of 1 to 10 μm. Structural and property analysis confirmed that the entire specimen is composed of nano-sized grains. The significant microstructural refining is attributed to a pulsed electric field-induced thermo-mechanical fatigue process, which in situ "shattered" the large particles into nano-sized grains during sintering. An advantage of this technique over the previous ones is that it avoids the usage of ultrafine nanometer-sized powders, which are difficult to process and mass produce in an economic and consistent way. In principle, the process demonstrated here can be applied to other material systems. © 2008 The American Ceramic Society.
Publication Date
8-1-2008
Publication Title
Journal of the American Ceramic Society
Volume
91
Issue
8
Number of Pages
2475-2480
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1111/j.1551-2916.2008.02490.x
Copyright Status
Unknown
Socpus ID
49549090422 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/49549090422
STARS Citation
Chen, Kepi; Zhang, Xiaowen; Wang, Hui; Zhang, Ligong; and Zhu, Jing, "Making Nanostructured Ceramics From Micrometer-Sized Powders Via Grain Refinement During Sps Sintering" (2008). Scopus Export 2000s. 10043.
https://stars.library.ucf.edu/scopus2000/10043