Thermal Analysis on Directional Freezing of Nano Aqueous Suspensions in Graphene Aerogel 3D Printing Process
Thermal Analysis on Directional Freezing of Nano Aqueous Suspensions in Graphene Aerogel 3D Printing Process
复制标题
石墨烯气凝胶3D打印过程中纳米水悬浮液定向冷冻的热分析
DOI：
10.1115/msec2016-8863
复制
发表时间：
2016
影响因子：
5.6
通讯作者：
D. Lin
中科院分区：
文献类型：
--
作者：
Guanglei Zhao;Chi Zhou;D. Lin
提出了一种基于定向冷冻的新型3D打印技术制备石墨烯气凝胶。石墨烯油墨的热性能是影响该工艺材料完整性和形貌以及工艺效率和可靠性的关键因素之一。本文的主要目标是建立一个传热模型，以有效和可靠地预测任何输入几何形状的印刷材料的温度演变和层之间的等待时间。仿真结果表明，输入几何形状对温度演化和等待时间有显著影响。该技术不仅可以提高工艺效率和可靠性，还可以作为一种灵活的工具来预测和控制印刷石墨烯气凝胶的微观结构。©2016 asme
This paper presented a novel 3D printing technique to fabricate graphene aerogel based on directional freezing. Thermal property of the graphene ink is one of key factors in this process which affects the material integrity and morphology as well as process efficiency and reliability. The major objective of this paper is to develop a heat transfer model to efficiently and reliably predict the temperature evolution of the printed materials and the waiting time between the layers for any input geometry. The simulation results show that the input geometry significantly affects the temperature evolution and waiting time. The proposed technique can not only improve the process efficiency and reliability, it can also serve as a flexible tool to predict and control the microstructure of the printed graphene aerogels.© 2016 ASME