Review
Materials Science, Multidisciplinary
Qian Li, Xi Lin, Qun Luo, Yu'an Chen, Jingfeng Wang, Bin Jiang, Fusheng Pan
Summary: This paper summarizes the kinetic models based on different kinetic measurement methods and rate-controlling steps for studying the kinetic mechanism of hydrogen storage alloys. The analysis procedures of kinetic experimental data and the effects of temperature, hydrogen pressure, and particle radius are explained in detail. The applications of the kinetic models for different hydrogen storage alloys are also introduced.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Geochemistry & Geophysics
Asif Ali, Yi Wai Chiang, Rafael M. Santos
Summary: X-ray diffraction (XRD) is an important and widely used material characterization technique, but further improvements are needed in its characterization capabilities, especially for complex mineral structures. This review comprehensively discusses the principles, applications, uncertainties, and safety precautions of XRD, and explores the future research directions of using artificial intelligence and machine learning tools to enhance the effectiveness and accuracy of XRD technique.
Article
Engineering, Geological
Peng Hou, Yi Xue, Feng Gao, Fakai Dou, Shanjie Su, Chengzheng Cai, Caihui Zhu
Summary: In this study, the effects of liquid nitrogen cooling on the internal structure of coal and the mechanical properties and fracture morphology of bedding coal were investigated. The results showed that LN2 cooling damaged the micro-structure of coal and reduced its mechanical properties, with the degree of weakening dependent on the bedding direction. Additionally, LN2 cooling increased the ductility of coal and induced longer and more complex fractures.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2022)
Article
Engineering, Geological
Mingzhong Gao, Haichun Hao, Shouning Xue, Tong Lu, Pengfei Cui, Yanan Gao, Jing Xie, Bengao Yang, Heping Xie
Summary: This study uses three-dimensional dynamic scanning technology to reconstruct the fracture morphology of disced cores and investigates the roughness of their surfaces. A parametric system is developed for the quantitative study of core integrity. The mechanisms and characteristics of fractures along stress paths are also explored. The findings show that shallow cores have notable saddle-shaped coarse fractures while deep cores exhibit thicker discs and smoother fracture surfaces.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2022)
Review
Mining & Mineral Processing
Heping Xie, Jun Lu, Cunbao Li, Minghui Li, Mingzhong Gao
Summary: Studying the mechanical behavior of deep rocks under true triaxial stress is crucial for the safe operation of deep rock engineering and the efficient exploitation of deep resources. Recent advancements in experimental techniques and research on true triaxial rock mechanics have greatly contributed to the rapid development in this field.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Review
Energy & Fuels
Dan Ma, Hongyu Duan, Jixiong Zhang, Haibo Bai
Summary: Water inrush is a dangerous disaster in coal mining, causing thousands of deaths and economic losses in China. The occurrence of water inrush is determined by water source and water-conducting pathway. This paper provides a state-of-the-art review of seepage mechanisms during water inrush, including stress-seepage coupling, flow regime transformation, and rock erosion.
INTERNATIONAL JOURNAL OF COAL SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Jiajian Li, Shuai Cao, Erol Yilmaz, Yunpeng Liu
Summary: This study investigates the uniaxial compressive strength, mechanical properties, and microstructural characteristics of fiber-reinforced cemented tailings backfill (FRCTB) through laboratory tests. The results show that adding fibers improves the compressive strength and mechanical properties of CTB. Fiber addition effectively inhibits crack propagation and increases the peak strain of FRCTB.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Engineering, Geological
Chengzeng Yan, Xin Xie, Yuhang Ren, Wenhui Ke, Gang Wang
Summary: A coupled thermal-hydro-mechanical (THM) model based on the combined finite-discrete element method (FDEM) is proposed for simulating rock cracking driven by multi-physics. By simulating the interaction between thermal, hydraulic, and mechanical processes, the study shows that branching fractures can be produced in addition to the primary fracture during hydraulic fracturing.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2022)
Article
Engineering, Geological
Chun Zhu, Murat Karakus, Manchao He, Qingxiang Meng, Junlong Shang, Yu Wang, Qian Yin
Summary: Multistage constant-amplitude cyclic loading experiments were conducted on Tibet interbedded skarn to investigate the fatigue mechanical behavior of the rock. The results showed that the volumetric deformation and damage evolution of the skarn were influenced by the interbed structure. A new damage evolution model was proposed and different fracture mechanisms were identified through macroscopic failure morphology analysis.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2022)
Article
Mining & Mineral Processing
Xingsen Guo, Tingkai Nian, Wei Zhao, Zhongde Gu, Chunpeng Liu, Xiaolei Liu, Yonggang Jia
Summary: This study developed penetrometers with multiple probes for centrifuge experiments on South China Sea soil and kaolin clay. The forces on the probes throughout the penetration process were analyzed and quantified, and the spatial influence zone and penetration depth were determined. A methodology to determine the penetration resistance factors for surface marine soils was established.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Review
Materials Science, Multidisciplinary
Aixiang Wu, Zhuen Ruan, Jiandong Wang
Summary: Cemented paste backfill (CPB) is an effective approach for tailings management and underground goaf treatment. Paste rheology, which studies the flow and deformation behaviors of paste during the CPB process, plays a crucial role in solving engineering problems. However, due to the complexity of paste rheology, further research is needed to establish a comprehensive theoretical system.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Lianggui Ren, Yiqun Wang, Xin Zhang, Qinchuan He, Guanglei Wu
Summary: In this study, CoFe2O4@mesoporous carbon hollow spheres (MCHS) with a core-shell structure were prepared by introducing CoFe2O4 magnetic particles into hollow mesoporous carbon. The microwave absorption performance of the composites was investigated by adjusting the mass ratio of MCHS and CoFe2O4. The results showed that the porous core-shell structure and magnetic particles contributed to the enhanced microwave absorption.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Engineering, Geological
Wuqiang Cai, Hehua Zhu, Wenhao Liang
Summary: This study developed a digital acquisition technique and established a 3D numerical modeling to investigate the spatial effects and mechanisms of deep tunnel excavation. The results showed significant differences in deformations between 2D and 3D strength criteria in deep tunneling, as well as a clear relationship between pre-extrusion and pre-convergence deformations.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Siyuan Jin, Xiaochun Ma, Ruizhi Wu, Tingqu Li, Jiaxiu Wang, Boris L. Krit, Legan Hou, Jinghuai Zhang, Guixiang Wang
Summary: By adding carbonate to the silicate system electrolyte, the corrosion resistance of the plasma electrolytic oxidation coating on Mg-9Li-3Al alloy was improved. The addition of carbonate resulted in a denser coating with increased hardness, and the formation of the corrosion-resistant Li2CO3 phase.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Energy & Fuels
Zhiyuan Sun, Wenhao Lu, Pengcheng Xuan, Hao Li, Shangsheng Zhang, Shichen Niu, Ruiqing Jia
Summary: The separation of coal and gangue is crucial in coal production to improve coal quality, save energy, and ensure rational resource utilization. This paper proposes a new method based on image processing to separate coal and gangue by analyzing their visual differences and extracting supplementary texture using morphology. The effectiveness of the classifier is evaluated and compared to traditional methods, showing significantly improved recognition accuracy without the need for special treatment.
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION
(2022)
Review
Materials Science, Multidisciplinary
Shijie Zhang, Jiying Li, Xiaotian Jin, Guanglei Wu
Summary: Transition metal dichalcogenides (TMDs) have unique structures and electrical properties, making them highly advantageous for electromagnetic wave (EMW) absorption. Despite significant research on TMD-based EMW absorbers in the past three years, comprehensive summaries are rare. Therefore, it is important to discuss the interaction between morphologies, structures, phases, components, and EMW absorption performances of TMD-based absorbers. This review analyzes TMD-based absorbers from the perspectives of EMW absorption regulation strategies and the latest progress of TMD-based hybrids as EMW absorbers, summarizing absorption mechanisms and component-performance dependency.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Mining & Mineral Processing
Shaohang Cao, Wanzhong Yin, Bin Yang, Zhanglei Zhu, Haoran Sun, Qiuyue Sheng, Keqiang Chen
Summary: In this study, the influence of temperature on the flotation of quartz was investigated. It was found that increasing temperature improved the flotation recovery of quartz by reducing the critical micelle concentration and surface tension of the NaOL solution, increasing the adsorption of calcium species on the quartz surface, and enhancing the interaction between NaOL and the quartz surface.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Geochemistry & Geophysics
Liming Qiu, Yi Zhu, Dazhao Song, Xueqiu He, Weixiang Wang, Yang Liu, Yuzhe Xiao, Menghan Wei, Shan Yin, Qiang Liu
Summary: Coal and rock dynamic disasters pose a serious threat to miner safety and industrial production. The refined nonlinear characteristics of electromagnetic radiation (EMR) and acoustic emission (AE) during coal splitting failure were studied using Hilbert-H and multifractal theory, revealing valuable information about coal fracture law. The research showed that EMR and AE during coal splitting failure are related to the process of coal crack propagation, with similar initiation time and frequency band. However, EMR has a longer signal duration and lower frequency compared to AE. The research provides an effective method for studying the nonlinear refinement characteristics of coal EMR and AE.
Review
Mining & Mineral Processing
Qicheng Feng, Wenhang Yang, Shuming Wen, Han Wang, Wenjuan Zhao, Guang Han
Summary: This paper summarizes the surface properties and flotation behavior of copper oxide minerals, and reviews the flotation methods and interaction mechanism with reagents. Increasing active sites on the surface of copper oxide minerals is an effective way to achieve efficient flotation. Various perspectives for further research are proposed.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Mining & Mineral Processing
Huihui Zeng, Baolin Xing, Yijun Cao, Bing Xu, Lei Hou, Hui Guo, Song Cheng, Guangxu Huang, Chuanxiang Zhang, Qi Sun
Summary: The materialization of coal is an effective and clean pathway for its utilization, and the microstructures of coal-based carbon materials play a crucial role in their functional applications. This study systematically investigates the microstructural evolution of anthracite in the temperature range of 1000-2800 degrees C, providing guidance for the regulation of microstructure in coal-based carbon materials.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
