Roadmap for densification in cold sintering: Chemical pathways

Arnaud Ndayishimiye; Mert Y. Sengul; Takao Sada; Sinan Dursun; Sun Hwi Bang; Zane A. Grady; Kosuke Tsuji; Shuichi Funahashi; Adri C.T. van Duin; Clive A. Randall

Open Ceramics (Jul 2020)

Roadmap for densification in cold sintering: Chemical pathways

Arnaud Ndayishimiye,
Mert Y. Sengul,
Takao Sada,
Sinan Dursun,
Sun Hwi Bang,
Zane A. Grady,
Kosuke Tsuji,
Shuichi Funahashi,
Adri C.T. van Duin,
Clive A. Randall

Affiliations

Arnaud Ndayishimiye: Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, United States; Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, United States; Corresponding author. Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, United States.
Mert Y. Sengul: Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, United States; Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, United States
Takao Sada: Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, United States; Monozukuri R&D Laboratory, KYOCERA Corporation, Kirishima, Kagoshima, 899-4312, Japan
Sinan Dursun: Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, United States; Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, United States
Sun Hwi Bang: Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, United States; Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, United States
Zane A. Grady: Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, United States; Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, United States
Kosuke Tsuji: Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, United States; Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, United States
Shuichi Funahashi: Murata Manufacturing Co., Ltd., 1–10–1 Higashikotari, Nagaokakyo, Kyoto, 617–8555, Japan
Adri C.T. van Duin: Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, United States; Department of Mechanical Engineering, The Pennsylvania State University, University Park, PA, 16802, United States
Clive A. Randall: Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, United States; Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, United States

Journal volume & issue: Vol. 2
p. 100019

Abstract

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The cold sintering process (CSP) is a technique that enables densification of ceramics and composites at extremely low temperatures (T < 400 °C) with the application of a uniaxial pressure and a transient solvent. At the laboratory scale, comparing direct sintering methods relative to CSP evidences that the latter could enable a sustainable eco-manufacturing path with considerable energy and emission savings, as well as fast processing times. Thus far, cold sintering has been applied to different materials, compounds, solid solutions, and functional composites, pointing to multiple future opportunities. This paper summarizes some of the transient phase selections, different chemical approaches and subtle chemical reactions with the powders which can be used to drive the cold sintering processes in many important ceramics and composites. In doing so, this paper highlights some of the reasons why the fundamental understanding of CSP mechanisms remains challenging, but classification of the pathways as outlined here should aid progress towards a more comprehensive understanding.

Published in Open Ceramics

ISSN: 2666-5395 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Chemical technology: Clay industries. Ceramics. Glass
Website: https://www.journals.elsevier.com/open-ceramics

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