Thermally-insulated ultra-fast high temperature sintering (UHS) of zirconia: A master sintering curve analysis

SCRIPTA MATERIALIA

卷:203

Article

Dong, Jian¹  Pouchly, Vaclav²  Biesuz, Mattia^3,4  Tyrpekl, Vaclav⁴  Vilemova, Monika³  Kermani, Milad¹  Reece, Mike⁵  Hu, Chunfeng¹  Grasso, Salvatore¹ 

[1] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Key Lab Adv Technol Mat, Minist Educ, Chengdu 610031, Peoples R China

[2] Brno Univ Technol, Brno 62100, Czech Republic

[3] Czech Acad Sci, Inst Plasma Phys, Slovankou 3, Prague 18200, Czech Republic

[4] Charles Univ Prague, Dept Inorgan Chem, Fac Sci, Hlavova 8, Prague 2030, Czech Republic

[5] Queen Mary Univ London, Mile End Rd, London E1 4NS, England

关键词: 3YSZ;    Grain size;    Ultra-fast sintering;    Master sintering curve;   

DOI  :  10.1016/j.scriptamat.2021.114076

来源: Elsevier

【 摘 要 】

A thermally-insulated Ultra-fast High temperature Sintering (UHS) has been developed to maximize the densification of 3 mol% yttria-stabilized zirconia and improve the energy efficiency of the process. Thermally-Insulated UHS (TI-UHS) employed a fibreboard insulator, which reduced the energy consumption by approximate to 40% compared to the reference set-up. An ultrafast heating rate, approaching approximate to 20 0 0 degrees C/min, produced dense (99% relative density) and fine-grained (178 +/- 18 nm) microstructures within 60 s. By cross-linking finite element simulations with master sintering curves a good fit between experimental and predicted density was obtained, allowing the development of predictive models for UHS densification. (c) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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