Jiahao Li

South China University of Technology

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Tongsheng Zhang

China State Construction Engineering (China)

Yiqun Guo

South China University of Technology

Leipeng Yang

Xi'an Polytechnic University

Qiang Ren

Tongji University

Jingshen Wu

University of Hong Kong

Chengan Hu

Xi'an Polytechnic University

Qijun Yu

South China University of Technology

Yuan Xiao

Xi'an Polytechnic University

Hao Yang

Nanjing University of Aeronautics and Astronautics

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Shanxi Medical University

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South China University of Technology

Guangzhou Building Materials Institute

Nanjing University of Aeronautics and Astronautics

Chinese Academy of Sciences

Central South University

Xi'an Jiaotong University

Ministry of Transport

Xi'an Polytechnic University

China Building Materials Academy

Hefei University of Technology

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Clarifying the effects of volume proportion and surface area of aggregate on chloride diffusivity of concrete through microstructural design

Cement and Concrete Composites (2023)

Jiahao Li Yiqun Guo Tongsheng Zhang Peng Gao Juan Wu

Tortuosity

Specific surface area

Mass diffusivity

10.1016/j.cemconcomp.2023.105248

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Citations (5)

The Resistance of Novel Concrete Prepared by Gap-Graded Blended Cement under Chloride-Sulfate Attack

Journal of Physics Conference Series (2021)

Yudong Han Tongsheng Zhang Yiqun Guo Wenli Tian Jiahao Li

Abstract The resistance of concrete under chloride-sulfate attack dominates the durability of marine constructions. The binder played a more important role in chloride-sulfate resistance of concrete due to the dynamic hydration process. Incorporating supplementary cementitious materials (SCMs) was beneficial to the microstructure densification of cement paste, but the low hydraulic activities of SCMs resulted in the decrease of mechanical properties, activating activities of SCMs would raise the cracking risk of cement paste. On the basic of close packing theory, a gap-graded blended cement contained calcined hydrotalcite and metakaolin was adopted to prepare concrete with high resistance under chloride-sulfate attack in present study. The gap-graded blended cement concrete presented comparable strength with Portland cement concrete, even though only 25% clinker used in the blended cement. Because of the continuous hydration of alumina-rich SCMs and functional components, the secondary hydration products with high chloride binding capacity helped blocking ions ingress, resulting in the one-magnitude decrease of chloride diffusivity. At the early period of soaking duration in chloride-sulfate solution, the sulfate ions were beneficial to delaying the migration of chloride. And the cracks introduced by expansive products from sulfate attack would observably accelerate the release and continuous ingress of chloride at late period.

Metakaolin

Cementitious

10.1088/1742-6596/2109/1/012024

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Synergetic optimizing particle size distributions of aggregate and cementitious materials: Toward lower chloride diffusivity of concrete

Construction and Building Materials (2024)

Yiqun Guo Mengmeng Ren Jiahao Li Tongsheng Zhang Wen Zhu

Cementitious

Particle (ecology)

10.1016/j.conbuildmat.2024.136979

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Preparation of Graphene/Polydimethylsiloxane Flexible Piezoresistive Sensors Based on Direct Ink Writing 3d Printing

Yuan Xiao Chengan Hu Leipeng Yang Jingshen Wu Jiahao Li

Polydimethylsiloxane

Piezoresistive effect

10.2139/ssrn.4987403

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Preparation of Graphene/Polydimethylsiloxane Flexible Resistive Pressure Sensors Based on Direct Ink Writing 3D Printing

Sensors and Actuators A Physical (2024)

Yuan Xiao Chengan Hu Leipeng Yang Jingshen Wu Jiahao Li

Polydimethylsiloxane

Resistive touchscreen

10.1016/j.sna.2024.116148

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Fowler-Nordheim tunneling in β-Ga₂O₃/SrRuO₃ Schottky interfaces

Journal of Physics D Applied Physics (2022)

Jiahao Li Yanda Ji Rui Pan Run Zhao Ye Yuan

Abstract Interfaces in heterostructures always emerge as prototype electronic devices with tunable functionality. The fundamental properties of these interfaces can be finely manipulated by epitaxy engineering. Recently, heterostructures based on Ga 2 O 3 , an ultra-wide bandgap semiconductor, have been reported for use in high powered device applications. Herein, we will demonstrate a heterostructure of β -Ga 2 O 3 /SrRuO 3 integrated on c -plane sapphire, where the high density of edge dislocations are evidenced in the heterostructure interfaces. Apart from the dominant Schottky emission mechanism, Fowler-Nordheim tunneling is also revealed by leakage current analysis, which may be ascribed to the edge dislocations at the interfaces. These results boost the basic understanding of ultra-wide bandgap materials and devices.

Wide-bandgap semiconductor

10.1088/1361-6463/ac5356

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Citations (2)

Friction Reduction of Hydrogenated Graphene by Strain Engineering

Tribology Letters (2020)

Yong Peng Jiahao Li Xianqiong Tang Бо Лю Xuanzhen Chen

10.1007/s11249-019-1260-x

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Citations (20)