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Cold sintering: Current status and prospects

Published online by Cambridge University Press:  18 July 2017

Jon-Paul Maria
Affiliation:
Department of Materials Science and Engineering, North Carolina State University, Raleigh 27695, North Carolina, USA
Xiaoyu Kang
Affiliation:
Department of Materials Science and Engineering, North Carolina State University, Raleigh 27695, North Carolina, USA
Richard D. Floyd
Affiliation:
Department of Materials Science and Engineering, North Carolina State University, Raleigh 27695, North Carolina, USA
Elizabeth C. Dickey
Affiliation:
Department of Materials Science and Engineering, North Carolina State University, Raleigh 27695, North Carolina, USA
Hanzheng Guo
Affiliation:
Department of Material Science and Engineering, Materials Research Institute, The Pennsylvania State University, University Park 16802, Pennsylvania, USA
Jing Guo
Affiliation:
Department of Material Science and Engineering, Materials Research Institute, The Pennsylvania State University, University Park 16802, Pennsylvania, USA
Amanda Baker
Affiliation:
Department of Material Science and Engineering, Materials Research Institute, The Pennsylvania State University, University Park 16802, Pennsylvania, USA
Shuichi Funihashi
Affiliation:
Department of Material Science and Engineering, Materials Research Institute, The Pennsylvania State University, University Park 16802, Pennsylvania, USA; and Murata Mfg. Co., Ltd., Nagaokakyo-shi, Kyoto, Japan
Clive A. Randall*
Affiliation:
Department of Material Science and Engineering, Materials Research Institute, The Pennsylvania State University, University Park 16802, Pennsylvania, USA
*
a) Address all correspondence to this author. e-mail: car4@psu.edu
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Abstract

This manuscript describes, defines, and discusses the process of cold sintering, which can consolidate a broad set of inorganic powders between room temperature and 300 °C using a standard uniaxial press and die. This temperature range is well below that needed for appreciable bulk diffusion, indicating immediately the distinction from the well-known and thermally driven analogue, allowing for an unconventional method for densifying these inorganic powders. Sections of this report highlight the general background and history of cold sintering, the current set of known compositions that exhibit compatibility with this process, the basic experimental techniques, the current understanding of physical mechanisms necessary for densification, and finally opportunities and challenges to expand the method more generically to other systems. The newness of this approach and the potential for revolutionary impact on traditional methods of powder-based processing warrants this discussion despite a nascent understanding of the operative mechanisms.

Type
Invited Reviews
Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Eugene Medvedovski

This section of Journal of Materials Research is reserved for papers that are reviews of literature in a given area.

References

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