Programmable and rapid fabrication of complex-shape ceramics

IF 14.7 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Nature Communications Pub Date : 2024-11-18 DOI:10.1038/s41467-024-54393-w

Yao Shan, Xuemu Li, Wanjun Zhao, Xiaodan Yang, Yuanyi Wang, Zhuomin Zhang, Shiyuan Liu, Xiaote Xu, Zhengbao Yang

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引用次数: 0

Abstract

Shaping of ceramics is crucial. Current techniques cannot easily and rapidly shape ceramics without weakening their properties, especially for piezoceramics. We present an ultrafast ceramic shaping method that leverages thermomechanical fields to deform and sinter ceramic powder compacts into complex-shaped ceramics. The shape-forming process hinges on: (1) the implementation of a precise thermal field to activate optimal deformability, and (2) the application of sufficient mechanical loads to guide deformation. We employ a programmable carbon-felt Joule heater that concurrently function as mechanical carriers, effectively transferring applied loads to the ceramic powder compacts. Using this ultrafast shaping and sintering (USS) method, we fabricate barium titanate (BT) piezoceramics in twisted shape, arch shape and with micropatterns. The USS method is energy-friendly (requiring approximately 1.06 kJ mm⁻³) and time-efficient (in several minutes level). Overall, the USS method offers an effective solution for shaping ceramics and extends them to 3D geometries with enhanced versatility.

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复杂形状陶瓷的可编程快速制造

陶瓷成型至关重要。目前的技术无法在不削弱陶瓷性能的情况下轻松快速地塑造陶瓷，尤其是压电陶瓷。我们提出了一种超快陶瓷成型方法，利用热机械场将陶瓷粉末压实物变形并烧结成复杂形状的陶瓷。成型工艺的关键在于(1) 实施精确的热场以激活最佳变形能力，以及 (2) 施加足够的机械负荷以引导变形。我们采用了可编程的碳毡焦耳加热器，同时充当机械载体，有效地将施加的载荷传递到陶瓷粉末压实物上。利用这种超快成型和烧结（USS）方法，我们制造出了扭曲形状、拱形和微图案的钛酸钡（BT）压电陶瓷。USS 方法能耗低（大约需要 1.06 kJ mm-3），时间效率高（只需几分钟）。总之，USS 方法为陶瓷成型提供了有效的解决方案，并将其扩展到三维几何形状，增强了多功能性。

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来源期刊

Nature Communications Biological Science Disciplines-

CiteScore

24.90

自引率

2.40%

发文量

6928

审稿时长

3.7 months

期刊介绍： Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.