Results 91 to 100 of about 99,192 (223)

On the tribological behaviors of Cu matrix composites with different Cu-coated graphite content

Journal of Materials Research and Technology, 2023
Graphite/Cu composite is widely used in pantograph slide plates. To further understand its lubrication behaviors, the tribological properties of graphite/Cu composites with different graphite content were studied using ball-on-disk wear tests.
Hengqing Li, Yangzhen Liu, Baochao Zheng, Shuai Wang, Yanliang Yi, Yongzhen Zhang, Wei Li   +6 more
doaj  

Biointerfacing with AgBiS2 Quantum Dots for Pseudocapacitive Photostimulation

Advanced Functional Materials, EarlyView.
It is demonstrated that AgBiS2 quantum dots exhibit unique photoinduced pseudocapacitive charge transfer properties, enabling efficient light‐to‐electrical energy conversion. These quantum dots facilitate enhanced light absorption and transduction when integrated with ZnO nanowires, which serve as an effective charge transport medium.
Ridvan Balamur, Tarik Safa Kaya, Selin Sariyer, Hümeyra Nur Kaleli, Asim Onal, Ugur Berkay Caliskan, Murat Hasanreisoğlu, Rezan Demir‐Cakan, Sedat Nizamoglu   +8 more
wiley   +1 more source

Experiment Research on Micro-/Nano Processing Technology of Graphite as Basic MEMS Material

Applied Sciences, 2019
Graphite is expected to be a common choice for basic microelectromechanical-system (MEMS) material in the future. However, in order to become a basic MEMS material, it is very important for graphite to be adapted to the commonly-used micro ...
Cheng Zhang, Yijin Liu, Mingge Wu, Ningbo Liao   +3 more
doaj   +1 more source

Improving the Capacity Retention of Poly(vinylphenothiazine) as Battery Electrode Material by Pore Size Engineering of Porous N‐Doped Carbon Nanospheres as Conductive Additive

Advanced Functional Materials, EarlyView.
By using (meso)porous N‐doped carbon nanospheres with tailored intraparticle porosity and constant particle size as conductive carbon in PVMPT‐based organic battery electrodes, the complete volume of the carbon is accessible for the immobilization of PVMPT, resulting in high accessible specific capacities while maintaining a good rate capability and ...
Niklas Ortlieb, Bärbel Tengen, Verena Perner, Martin Winter, Birgit Esser, Peter Bieker, Anna Fischer   +6 more
wiley   +1 more source

Elastic constants characterization on graphite at 500°C by the virtual fields method

Theoretical and Applied Mechanics Letters, 2014
In this paper the elastic constants of graphite at elevated temperature were experimentally investigated by using the virtual fields method (VFM). A new method was presented for the characterization of mechanical properties at elevated temperature.
Baoqiao Guo, Huaixi Wang, Huimin Xie, Pengwan Chen   +3 more
doaj   +1 more source

Scaling‐Up of Structural Superlubricity: Challenges and Opportunities

Advanced Functional Materials, EarlyView.
At increasing length‐scales, structural superlubricity (SSL) faces challenges from physical and chemical energy dissipation pathways. This study reviews recent experimental and theoretical progress on these challenges facing the scaling‐up of SSL, as well as perspectives on future directions for realizing and manipulating macroscale superlubricity ...
Penghua Ying, Xiang Gao, Diana Berman, Oded Hod, Michael Urbakh   +4 more
wiley   +1 more source

Experimental Study of the Intrinsic and Extrinsic Transport Properties of Graphite and Multigraphene Samples [PDF]

Chapter 8, in Graphene (2011), Intech Open access publishers ISBN 978-953-307-292-0, 2011
This work deals with the intrinsic and extrinsic properties of the graphene layers inside the graphite structure, in particular the influence of defects and interfaces. We discuss the evidence for ballistic transport found in mesoscopic graphite samples and the possibility to obtain the intrinsic carrier density of graphite, without the need of free ...
arxiv  

Electricity Generation From Ambient Water Evaporation in the Absence of Sunlight via PVA‐Based Porous Hydrogels

Advanced Functional Materials, EarlyView.
In this article, a water‐evaporation driven energy harvester is devised that works even in the absence of sunlight. This is achieved by combining PVA hydrogel with thermoelectrics (TEG) to directly capture energy from water evaporation. Under mild conditions (RH 40%, T of 26 °C, and 2.8 m s−1 wind), 1.71 mW (1.02 W m−2) power can be generated, >3 fold ...
Zichen Gong, Ady Suwardi, Jing Cao
wiley   +1 more source

Mechanical and Electrical Characteristics of Graphite Tailing Concrete

Advances in Materials Science and Engineering, 2018
The graphite tailing causes serious environmental pollution, and the pollution problem becomes worse and worse with the increase in graphite demands. This paper focuses on the graphite tailing concrete, which can alleviate the environment problem through
Hongbo Liu, Kun Liu, Zhu Lan, Dashuang Zhang   +3 more
doaj   +1 more source

Graphite in Science and Nuclear Technique [PDF]

arXiv, 2013
The monograph is devoted to the application of graphite and graphite composites in science and technology. The structure and electrical properties, the technological aspects of production of high-strength synthetic graphites, the dynamics of the graphite destruction, traditionally used in the nuclear industry are discussed.
arxiv