A novel approach for developing boron carbide (B4C)/cyanate ester (CE) co-continuous Functionally Graded Materials (FGMs) with eliminated abrupt interfaces
A novel approach for developing boron carbide (B4C)/cyanate ester (CE) co-continuous Functionally Graded Materials (FGMs) with eliminated abrupt interfaces
复制标题
开发消除突变界面的碳化硼 (B4C)/氰酸酯 (CE) 共连续功能梯度材料 (FGM) 的新方法
DOI：
10.1016/j.jeurceramsoc.2020.08.042
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发表时间：
2021
影响因子：
5.7
通讯作者：
Wen Wang
中科院分区：
文献类型：
--
作者：
Qiang Liu;Yang Wang;Xin-Yuan Hua;Biao Zhang;Hao-Qian Zhang;Jun-Wei Liu;Feng Ye;Wen Wang
传统的功能梯度材料（FGM）虽然在一定程度上削弱了层间沿着界面的突变，但消除残余突变界面导致的层间应力仍然是一个重大挑战。本文首次采用逐层流延成型与凝胶冷冻干燥相结合的方法制备了具有连续梯度通道的新型陶瓷支架。通过对软相的渗透，可以成功地制备出无分层和层间突变的共连续功能梯度材料。悬浮液的湿分层和连续的冰晶穿过界面是消除界面的主要原因。更重要的是，功能梯度材料的性能可以优化，以满足实际要求归因于不同的孔隙率和孔径分布的冷冻铸造陶瓷支架。这种没有突变界面的共连续陶瓷/功能梯度材料的新工艺可以扩展到其他聚合物甚至金属。
Although traditional functionally graded materials (FGMs) have weakened a certain extent abrupt changes along interfaces between layers, eliminating residual abrupt interfaces which results in great inter laminar stresses remains a major challenge. Herein, ceramic scaffolds with novel continuously graded channels have been firstly prepared through combining layer-by-layer casting with gelation-freeze-dry. Followed by infiltrating soft phase, the co-continuous FGMs without delamination and abrupt changes between layers can be successfully fabricated. The wet layering of suspensions and continuous ice crystals across the interface are the main reasons for the eliminated interfaces. More importantly, the performance of FGMs can be optimized to meet the practical requirement attributed to the varied porosity and pore size distribution of freeze-cast ceramic scaffolds. The novel process for co-continuous ceramics/ FGMs without abrupt interfaces can be extended to other polymers or even metals.
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影响因子：
5.7
作者：
C. Lee;J. Lemberg;D. Cho;J. Roh;R. Ritchie
通讯作者：
C. Lee;J. Lemberg;D. Cho;J. Roh;R. Ritchie
影响因子：
1.6
作者：
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K. M. Sree Manu;V. G. Resmi;M. Brahmakumar;P. Narayanasamy;T. Rajan;C. Pavithran;B. C. Pai
影响因子：
4.7
作者：
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通讯作者：
T. Rajan;R. M. Pillai;B. C. Pai
DOI：
10.1016/j.matpr.2018.06.536
发表时间：
2018
期刊：
Materials Today: Proceedings
影响因子：
--
作者：
D. Sarathchandra;S. K. Subbu;N. Venkaiah
通讯作者：
D. Sarathchandra;S. K. Subbu;N. Venkaiah
影响因子：
3
作者：
X. Yi;Jianfeng Zhang;Q. Zheng;Yi Pan
通讯作者：
X. Yi;Jianfeng Zhang;Q. Zheng;Yi Pan