Implementing continuous freeze-casting by separated control of thermal gradient and solidification rate

Implementing continuous freeze-casting by separated control of thermal gradient and solidification rate
复制标题

热梯度和凝固速率分开控制,实现连续冷冻铸造

DOI:
10.1016/j.ijheatmasstransfer.2019.01.014
复制
发表时间:
2019-04
影响因子:
5.2
通讯作者:
Wang Jin-cheng
Wang Jin-cheng
中科院分区:
工程技术2区
文献类型:
--
作者:
Zheng Tao;Li Jun-jie;Wang Li-lin;Wang Zhi-jun;Wang Jin-cheng

文献摘要

参考文献

被引文献

相似文献

冷冻铸造法制备冰模板多孔材料已成为许多领域的研究热点。已经提出了几种基于冷冻铸造的装置来制造定向多孔材料,其中冰的单向生长主要通过改变样品端部的温度来控制。在传统的冷冻铸造方法中,整个样品的热传导限制了冷冻过程。本文提出了一种可独立控制温度梯度和凝固速度的连续定向凝固凝固新方法。横向热传导为制备长度不受限制、微观结构可控的轴向均匀多孔结构材料提供了一条有效途径。此外,还可以通过添加少量蔗糖来进一步改善轴向均匀性。
Ice-templated porous materials from freeze-casting have attracted widespread attentions in many research fields. Several apparatuses based on the freeze-casting have been proposed to fabricate aligned porous materials, where the unidirectional growth of ice is mainly controlled by changing temperatures at the sample ends. The thermal conduction cross the whole sample restricts the freezing process in traditional freeze-casting methods. In this paper, a new approach of freeze-casting is proposed, where the thermal gradient and the solidification rate can be controlled independently for continuous directional freezing. The lateral thermal conduction provides an effective way to produce axially homogeneous porous structural materials with unrestricted length and controllable microstructures. Moreover, the axial homogeneity can also be further improved by adding a small amount of sucrose.
DOI: 10.1002/adma.201600839
发表时间: 2016-07
期刊: Advanced Materials
影响因子: 29.4
作者:
Hewei Zhao;Yonghai Yue;Lin Guo;Juntao Wu;Youwei Zhang;Xiaodong Li;Shengcheng Mao;Xiaodong Han
通讯作者: Hewei Zhao;Yonghai Yue;Lin Guo;Juntao Wu;Youwei Zhang;Xiaodong Li;Shengcheng Mao;Xiaodong Han
DOI: 10.1023/a:1022872421333
发表时间: 2003-03-01
影响因子: 3.7
作者:
Legeros, RZ;Lin, S;Legeros, JP
通讯作者: Legeros, JP
DOI: --
发表时间: 1981-06
期刊: --
影响因子: --
作者:
Y. Yen
通讯作者: Y. Yen
DOI: 10.1016/j.scriptamat.2017.06.020
发表时间: 2018-04-01
期刊: SCRIPTA MATERIALIA
影响因子: 6
作者:
Deville, Sylvain
通讯作者: Deville, Sylvain
DOI: 10.1039/c1sm05388d
发表时间: 2011-01-01
期刊: SOFT MATTER
影响因子: 3.4
作者:
Lee, Jihoon;Deng, Yulin
通讯作者: Deng, Yulin