Achieving Super-Metallophobicity on Silicon-based Ceramics at High Temperature

被引:1
作者
Cao, Xinpeng [1 ,2 ]
Deng, Shuxiang [3 ]
He, Zengyi [1 ,2 ]
Yang, Zengchao [3 ]
Dai, Haoyu [1 ]
Li, Jiangtao [3 ]
Jiang, Lei [1 ,2 ]
机构
[1] Chinese Acad Sci, Tech Inst Phys & Chem, CAS Key Lab Bioinspired Mat & Interfacial Sci, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Tech Inst Phys & Chem, CAS Key Lab Cryogen, Beijing 100190, Peoples R China
基金
中国国家自然科学基金;
关键词
dissolution-precipitation mechanism; high-temperature superwettability; metallophobicity; reactive wetting dynamics; Si-based ceramics; WETTABILITY; ROUGHNESS; SI3N4; STABILITY; DYNAMICS; ALUMINUM; SYSTEM;
D O I
10.1002/adma.202405194
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
As a critical concept in physical chemistry, superwettability is widely concerned in both fundamental science and practical engineering in past few decades. Despite this, investigation on high temperature superwettability is still a void, which is significant both in scientific and industrial fields. Herein, a ceramic with specific high temperature non-wetting property, Si2N2O is proposed. Compared with other materials, Si2N2O is elucidated with better practical non-wetting property against various non-ferrous metals. Combining with micro-nanostructures, the metallophobicity is further improved (contact angle >150 degrees and contact angle hysteresis approximate to 0 degrees). The extraordinary metal repellency is defined as "super-metallophobicity", which is proved to be induced by distinctive thermodynamic and dynamic wetting behavior on the rough surface. The research of super-metallophobicity not only sheds light on superwettability at high temperature, but also offers worthy insights for future potential material design in a wide range of applications, such as metallurgy, 3D printing and semiconductor industry.
引用
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页数:12
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