DataVXAdvanced SciencePaper
journal article·2020-11Open access

Liquid‐Phase Assisted Engineering of Highly Strong SiC Composite Reinforced by Multiwalled Carbon Nanotubes

Yuchi Fan, Erhong Song, Tufail Mustafa, Ruicong Liu, Pengpeng Qiu, Weiwei Zhou, Zhenxing Zhou, Akira Kawasaki, Keiichi Shirasu, Toshiyuki Hashida, Jianjun Liu, Lianjun Wang, Wan Jiang, Wei Luo

Advanced Science· Volume 7· Issue 21
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Source abstract

Abstract

Abstract Despite the ultrahigh intrinsic strength of multiwalled carbon nanotube (MWCNT), the strengthening effect on ceramic matrix composite remains far from expectation mainly due to the weak load transfer between the reinforcement and ceramic matrix. With the assistance of the in situ pullout test, it is revealed that the liquid‐phase sintering (LPS) can serve as a novel strategy to achieve effective load transfer in MWCNT reinforced ceramic matrix composites. The YAlO3 formed liquid phase during spark plasma sintering of SiC composite greatly facilitates radical elastic deformation of MWCNT, leading to highly increased interfacial shear strength (IFSS) as well as interlayer shear resistance (ISR) of nested walls. The liquid phase with superior wettability can even penetrate into the defects of MWCNT, which further increases the ISR of MWCNT. Moreover, the first‐principles calculation indicates that the oxygen terminated YAlO3 phase displays much stronger bonding compared with SiC matrix, which is also responsible for the large IFSS in the composite. As a result, as high as 30% improvement of bending strength is achieved in the composite with only 3 wt% MWCNT in comparison to the monolithic ceramic, manifesting the unprecedented strengthening effect of MWCNT assisted by LPS.
Source: crossref · Quality: baseline

Research context

Ceramics & glassesNanomaterialsComposites

OpenAlex topics: Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties · Carbon Nanotubes in Composites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai 201620 China

Institute of Functional Materials Donghua University Shanghai 201620 China

State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China

Department of Chemical Engineering Balochistan University of Information Technology Engineering and Management Sciences (BUITEMS) Quetta 87300 Pakistan

Department of Materials Processing Graduate School of Engineering Tohoku University Sendai 980‐8579 Japan

Department of Aerospace Engineering Tohoku University Sendai 980‐8579 Japan

Fracture and Reliability Research Institute Tohoku University Sendai 980‐8579 Japan

Funding

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing · Wuhan University of Technology · Shanghai Rising-Star Program · Science and Technology Commission of Shanghai Municipality · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China

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