Results 21 to 30 of about 75,431 (87)

Construction of equivalent DFN model based on screening of main control fracture scale of coal samples

Meitan kexue jishu
The joints of different scale levels in coal and rock are staggered and the distribution law is very different, which has an important influence on their deformation and failure characteristics.
Ding LANG, Zixin ZHANG, Yongping WU, Yang YU, Jiandong YU, Xiaobo WU, Yao ZHANG   +6 more
doaj   +1 more source

High fracture toughness: Nacre-mimetic HA-CaCO3/SA layered composites without sintering

Journal of Materials Research and Technology
The fabrication of composites with nacre-like structures through the ordered integration of ceramics and organic components represents an effective approach to developing high strength and toughness bone implant materials. Traditional preparation methods
Qian Liang, Yufei Tang, Yuting Song, Bo Zhang, Yani Sun, Kang Zhao, Zixiang Wu   +6 more
doaj   +1 more source

Efficient oxidation of scrap WC-8Co cemented carbide by microwave roasting

Journal of Materials Research and Technology
Oxidation is crucial for recovering W and Co from scrap cemented carbides. To intensify this process, microwave roasting was employed in this study for efficient oxidation of one of the main carbides, namely scrap WC-8Co cemented carbide.
Tong Zhang, Zhiwei Peng, Hao Jiang, Zexi Gong, Xinran Li, Anan Duan   +5 more
doaj   +1 more source

Microwave properties of composites based on glass microsphers coated with ferromagnetic compounds

Journal of Materials Research and Technology
In this study, glass microspheres (GMs) of varying sizes, both pure and decorated with nano-sized bimetallic Ni(80)Fe(20) particles, were incorporated into epoxy-based composites filled with 3 wt% graphite nanoparticles (GNPs) to create 2D and 3D ...
Ludmila Yu Matzui, Ludmila L. Vovchenko, Olena S. Yakovenko, Oleg.V. Turkov, Olecsandr.V. Zhuravkov, Olena V. Ischenko, Vitaliy E. Diyuk, Alla G. Dyachenko, Olha V. Pryhunova, Volodymyr V. Zagorodnii, Maria Cojocari, Georgy Fedorov, Polina Kuzhir   +12 more
doaj   +1 more source

The effect of laser ablation on the corrosion behavior, morphology and wettability of TiAlCrSiZr coating deposited by PVD

Journal of Materials Research and Technology
This work investigates the surface properties, corrosion resistance, and wettability of a laser-ablated TiCrAlSiZr high-entropy alloy coating deposited on SS316L via cathodic arc evaporation (CAE).
Esmaeil Khorasani-javadi, Hassan Elmkhah, Erfan Lotfi-khojasteh, Ensiye Shabanlou, Babak Jaleh, Arash Fattah-alhosseini   +5 more
doaj   +1 more source

Comprehensive experimental and numerical characterization of microstructural and mechanical anisotropy in wire arc additive manufactured carbon steel

Journal of Materials Research and Technology
Additively manufactured components often exhibit microstructural heterogeneity, leading to anisotropy. Most works are dedicated to a specific feature, and a full characterization has not been addressed yet.
Luiz Eduardo dos Santos Paes, João Marcos Souza Dias, João Rodrigo Andrade, Edmundo Benedetti Filho, Henrique Nardon Ferraresi, Leonardo Rosa Ribeiro da Silva, Carolina Xavier de Jesus Silva, Valério Luiz Borges, Kaue Correa Riffel, Silvina Hereñú, Pablo Francia, Elisan dos Santos Magalhães, Moisés Luiz Lagares Junior, Carlos Antonio Ribeiro Duarte, Tiago Vieira da Cunha, Núbia dos Santos Saad, Louriel Oliveira Vilarinho   +16 more
doaj   +1 more source

Current situation of comprehensive utilization of coal gangue and exploration of ways of high-value utilization:A case study of China National Coal Group Corporation

Meitan kexue jishu
In the context of the “double carbon” goal, coal is the cornerstone of national energy security, and its green development is of strategic significance to my country’s economic construction and social development.
Lei ZHU, Wenzhe GU, Zhiwei HE, Chengyong LIU, Mengye ZHAO, Tianqi SONG, Yun ZHANG, Yuyi WU, Zhicheng LIU, Xinfu ZHANG, Peng ZHANG, Fengtian SHENG   +11 more
doaj   +1 more source

Characteristics of ultrafine-nano bubbles and its enhancing mechanism for the mineralization reaction of fly ash

Meitan kexue jishu
The preparation of mine filling materials by the mineralization reaction of fly ash and CO2 from flue gas not only solves the problem of large-scale coal-based solid waste stockpiling but also reduces the carbon emissions of coal-fired power plants ...
Xiwen YIN, Qiuge YU, Xiaodong SUN, Zhichao GAN, Yong CUI, Hairong YUE, Zhihui WANG   +6 more
doaj   +1 more source

Seismicity of tectonic structures of the South Polar Region

Записки Горного института
The paper studies seismicity of the South Polar Region from the South Pole to the 50th parallel of south latitude. During the observation period, earthquakes of various genesis with a magnitude of M > 8 occurred in seismically hazardous zones of the ...
Alexey A. Baranov, Nadezhda V. Andreeva
doaj  

Optimization of grouting reinforcement performance of superfine sulfoaluminate cement composite system

Meitan kexue jishu
Aiming at the technical demands for the control of the stability of the surrounding rock of the underground roadway in coal mines and the improvement of the effect of grouting reinforcement, and with the target orientation of the resource utilization of ...
Pengfei WANG, Pengyun YAN, Mingxuan ZHANG   +2 more
doaj   +1 more source