journal article·2020-07-22

ZrB2-Based “Brick-and-Mortar” Composites Achieving the Synergy of Superior Damage Tolerance and Ablation Resistance

Yehong Cheng, Yumin An, Yaxiong Liu, Qiang Wei, Wenbo Han, Xinghong Zhang, Peng Zhou, Chuncheng Wei, Ning Hu

ACS Applied Materials & Interfaces· Volume 12· Issue 29
Publisher page

Abstract

The intrinsic brittleness and poor damage tolerance of ultrahigh-temperature ceramics are the key obstacles to their engineering applications as nonablative thermal protection materials. Biomimetic layered or “brick-and-mortar” hybrid composites composed of alternative strong/weak interfaces exhibit excellent strength and high toughness; however, the commonly used interfacial materials are weak and have poor thermal stability and ablation resistance, which strictly limit their use in high-temperature and oxidative environments. In this work, ZrB2-based “brick-and-mortar” hybrid ceramics were constructed with a hierarchical biomimetic design to improve the fracture resistance and damage tolerance. ZrB2–20vol %SiC ceramics containing 30 vol % reduced graphene oxide nanosheets were used as the weak interface to increase crack growth resistance without destroying the excellent ablation resistance. Finally, the ZrB2-based “brick-and-mortar” composites achieve the synergy of superior damage tolerance and ablation resistance.
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Research context

OpenAlex topics: Advanced ceramic materials synthesis · Bone Tissue Engineering Materials · Concrete and Cement Materials Research

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

Affiliations

School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, P. R. China

Research Institute for Structure Technology of Advanced Equipment, Hebei University of Technology, Tianjin 300401, P. R. China

National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, P. R. China

Institute of Intelligent Manufacturing Technology, Shenzhen Polytechnic, Shenzhen 518055, P. R. China

School of Material Science and Engineering, Shandong University of Technology, Zibo 255049, P. R. China

State Key Laboratory of Reliability and Intelligence Electrical Equipment, Hebei University of Technology, Tianjin 300401, P. R. China

Funding

Natural Science Foundation of Hebei Province · Chongqing Science and Technology Commission · Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Science and Technology Research Project of Colleges and Universities of Hebei Province · Science??Foundation of the National Key Laboratory of Science and Technology on Advanced Composites in Special Environments

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