Impact of repeated heat pulses on the consolidation and grain growth of 3YSZ consolidated via ultrafast high-temperature sintering (UHS)

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-03-23 DOI:10.1016/j.jeurceramsoc.2025.117395

Liying Chen , Jinling Liu , Roberto Volpe , Salvatore Grasso

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引用次数: 0

Abstract

Recently emerged UHS enables the study of unexplored temperature profiles not achievable with conventional firing cycles. Controlled electrical power dissipation, localized in the vicinity of the sample, enables the generation of heat pulses with ON-OFF periods ranging from 10 s to 60 s. This study investigates the impact of heat pulses on the consolidation and grain growth of 3YSZ. Increasing the number of repeated heat pulses from 1 to 5, with a total ON time of 60 s and OFF intervals of 60 s under a constant set power dissipation of 400 W, enhances temperature equilibration while limiting grain growth, as the average temperature is maintained below the rapid grain growth threshold of 1350°C. As a result of the temperature equilibration effect, the density of samples sintered using a single-pulse process was 88 %, whereas 5 repeated pulses contributed to a higher density of 98.3 % and a grain size of 126 ± 36 nm.

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来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.