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arXiv · 2006.09045

Effect of Cold Sintering Process (CSP) on the Electro-Chemo-Mechanical Properties of Gd-doped Ceria (GDC)

Ahsanul Kabir·Daoyao Ke·Salvatore Grasso·Benoit Merle·Vincenzo Esposito
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Abstract

In this report, the effect of the cold sintering process (CSP) on the electro-chemo-mechanical properties of 10 mol% Gd-doped ceria (GDC) is investigated. High purity nanoscale GDC powder is sintered via a cold sintering process (CSP) in pure water followed by post-annealing at 1000 {\deg}C. The resultant CSP ceramics exhibits high relative density (~92%) with an ultrafine grain size of ~100 nm. This sample illustrates comparable electrochemical properties at intermediate/high temperatures and electromechanical properties at room temperature to the sample prepared via conventional firing, i.e. sintering in the air at 1450 {\deg}C. Moreover, a large creep constant as well as a low elastic modulus and hardness are also observed in the CSP sample.

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Ahsanul Kabir, Daoyao Ke, Salvatore Grasso, Benoit Merle, Vincenzo Esposito. 2020-06-16. Effect of Cold Sintering Process (CSP) on the Electro-Chemo-Mechanical Properties of Gd-doped Ceria (GDC). https://arxiv.org/abs/2006.09045

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