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通过直接墨水写作增强可拉伸的液体金属-银复合材料的电导性

Wuzhou Zu¹, Hugo E Carranza¹, Michael D Bartlett^1,2

¹Mechanical Engineering, Soft Materials and Structures Lab, Virginia Tech, Blacksburg, Virginia 24061, United States.

ACS applied materials & interfaces

|April 30, 2024

概括

研究人员通过调整打印参数来增强可拉伸导体,实现400%更高的导电性. 这一突破使先进的软电子和机器人能够提高性能和灵活性.

科学领域:

材料科学材料科学材料科学
电气工程电气工程
添加剂制造添加剂制造添加剂制造

背景情况:

控制材料性能依赖于理解结构-属性-过程关系.
可伸缩导体对于软电子等新兴应用至关重要.

研究的目的:

为了提高多相液体金属 (LM) -银可拉伸导体的电导率和性能.
为了研究直接墨水写 (DIW) 过程参数对导体特性的影响.

主要方法:

系统调整DIW过程参数,特别是打印速度.
使用DIW打印制造多相LM银丝的制造.
电导性,机械性质 (模块,伸展性) 和应变不变性的表征.

主要成果:

在电导率上实现了400%的增加,超过1.06 × 10⁶ S·m^{-1 .}
证明软 (1.1 MPa 模量),高度可拉伸的导体 (>800% 张力极限).
展现了高达80%的应变不变导电性.

结论:

DIW 工艺参数调制,特别是打印速度,可以在现场控制 LM-银含有物以提高导电性.
开发的方法允许对可拉伸导体的特性进行编程,将材料组成和工艺参数结合起来.
成功展示了功能性的电磁感应线圈,用于在变形下无线传输电力,突出了软机器人和电子产品的潜力.

关键词:

法律上的命令.液体金属是一种液体金属.材料挤出材料挤出多功能材料多功能材料银,银,银,银,银,银,银,银,银,银,银,银,银,银,银,银可伸缩电子产品可伸缩电子产品

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