UV-activated seed strategy for promoting textured colossal grain growth in templated ceramic processing

IF 6.2 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-09-24 DOI:10.1016/j.jeurceramsoc.2025.117851

Dong-Gyu Lee , Seung Hyeon Kong , Yi-Yeon Kim , Seung-Bum Kim , Iman M. Imani , Hyun Soo Kim , Jeong Min Baik , Heemin Kang , Sahn Nahm , Sunghoon Hur , Yongke Yan , Sangtae Kim , Kyung-Hoon Cho , Hyun-Cheol Song

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引用次数: 0

Abstract

Templated Grain Growth (TGG) is a method of growing a matrix using crystallographically oriented seeds, allowing the manipulation of growth behavior by controlling their interfaces. We explore the surface treatment of seeds to enhance the piezoelectric properties of ceramics, focusing on 0.675Pb(Mg1/3Nb2/3)O₃-0.325PbTiO₃ (PMN-32.5PT) and BaTiO₃ (BT) seeds. Employing Ultra-Violet (UV) light treatment on BT seeds promotes grain growth around them, a method termed UV-TGG. Notably, this technique leads to substantial grain enlargement and an increase in the piezoelectric constant, all achieved without altering the composition of the seed or matrix materials. When using UV-TGG, there was a 140 % improvement in the d₃₃×g₃₃ value, which was 33.2 pm²/N compared to the conventional TGG's value of 23.7 pm²/N. The UV-TGG introduces an easy way to elevate ceramic performance and facilitate material design without altering composition.

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紫外光激活种子策略促进陶瓷模板加工中有织构的巨粒生长

模板颗粒生长（TGG）是一种利用晶体取向种子生长基质的方法，通过控制其界面来操纵生长行为。为了提高陶瓷的压电性能，我们对粒子进行了表面处理，重点研究了0.675Pb(Mg1/3Nb2/3)O3-0.325PbTiO3 （PMN-32.5PT）和BaTiO3 （BT）粒子。使用紫外线（UV）光处理BT种子促进周围的籽粒生长，这种方法被称为UV- tgg。值得注意的是，这种技术导致了大量的晶粒扩大和压电常数的增加，所有这些都是在不改变种子或基体材料组成的情况下实现的。当使用UV-TGG时，与传统TGG的23.7 pm2/N相比，d33×g33值提高了140 %，为33.2 pm2/N。UV-TGG引入了一种简单的方法来提高陶瓷性能和促进材料设计，而不改变成分。

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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.