A5070801913- Concrete and Cement Materials Research
- Rock Mechanics and Modeling
- Coal Properties and Utilization
- Advanced Surface Polishing Techniques
- Hydrocarbon exploration and reservoir analysis
- Advanced ceramic materials synthesis
- Metal and Thin Film Mechanics
- Concrete Corrosion and Durability
- Magnesium Oxide Properties and Applications
- Mining and Gasification Technologies
- Thermochemical Biomass Conversion Processes
- Geomechanics and Mining Engineering
- Boron and Carbon Nanomaterials Research
- Nuclear materials and radiation effects
- Geotechnical and Geomechanical Engineering
- Force Microscopy Techniques and Applications
- Metal Extraction and Bioleaching
- Additive Manufacturing Materials and Processes
- Smart Materials for Construction
- Diamond and Carbon-based Materials Research
- Innovative concrete reinforcement materials
- Mineral Processing and Grinding
- Tunneling and Rock Mechanics
- High Temperature Alloys and Creep
- Recycling and utilization of industrial and municipal waste in materials production
Shandong University of Science and Technology
2019-2025
Taiyuan University of Technology
2013-2023
Yellow River Institute of Hydraulic Research
2023
Soochow University
2018-2021
Fracture toughness KIC plays an important role in materials design. Along with numerous experimental methods to measure the fracture of materials, its understanding and theoretical prediction are very important. However, is challenging. By investigating correlation between elastic properties we have constructed a model for covalent ionic crystals. Furthermore, by introducing enhancement factor, which determined density states at Fermi level atomic electronegativities, universal crystals,...
Slag waste can be effectively used to produce coal–fired slag concrete (CSC), which has economic and environmental benefits. However, CSC in engineering construction will eventually subjected damage. The purpose of this study is investigate the mechanical characteristics damage evolution behaviour specimens under a uniaxial compressive load using acoustic emission (AE) monitoring technology. Through compression testing AE monitoring, stress–strain curve are obtained. Subsequently, model...
Increasing attention is being paid to the clean and efficient mining utilization of coal resources. Lignite a major component coal; however, its high moisture volatile contents low calorific value cause it have efficiencies. During dehydration, upgrading in-situ heat injection or underground gasification lignite, pore structure plays an important role in pyrolysis product transfer processes. Therefore, necessary systematically study high-temperature lignite. The evolution fissures...
In this paper, electrochemical impedance spectroscopy tests and compressive strength were employed to investigate the sulfate attack process of cement-based materials, change law spectrum with erosion time was analyzed. Based on typical equivalent circuit model materials its microstructure model, parameters relationship The experimental results indicate that increasing time, shows significant quasi-Randles characteristics, position moves right, diameter high-frequency semicircle increases....
The lower pressure tendency in chemical mechanical polishing (CMP) process requires a adhesive inhibitor with environmentally friendly corrosion properties to replace the conventional benzotriazole (BTA) for aluminum (Al) CMP. Open circuit potential test, potentiodynamic polarization curve linear sweep voltammetry and drop investigated by in-situ electrochemical (ECMP) platform were used reveal controlled evolution of films at low during Al comparison between BTA 1,2,4-triazole (TAZ) shows...
Overcoming the low fabricating efficiency of traditional chemical mechanical polishing (CMP) for Gallium nitride (GaN) is a challenge owing to its high hardness, brittleness, and inertness. Here, electrochemical etching proposed increase material removal rate acquire high-quality surface on GaN wafers. To reveal synergistic mechanism oxidizing agent corrosion inhibitor wafers, experiments were carried out. The optimal solution contained 4 wt% H 2 O 10 mmol l −1 purified terephthalic acid....
In this study, the effects of high-sulphur fly ash on properties lightweight cement-treated materials (LCMs) immersed in sodium sulphate solutions were studied. The unconfined compressive strength LCMs corroded by was tested. microscopic characterised X-ray diffraction (XRD), electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM). results show that has an adverse effect structural after corrosion, but when content is less than 75%, small. A small amount can...
Underground coal gasification and in situ pyrolysis exploitation techniques have attracted renewed interest to meet the demand for clean efficiently mined lignite. The investigation of pore structure evolution during is beneficial understanding mechanisms guiding practical application exploitation. Furthermore, it was found be essential study under conditions that mimic environment. In this work we first designed a new high-temperature gas heating reaction system, which heated by fluidic N2...
Abstract. Superalloy GH4169 is an extremely important material for aircraft structural components in aero-engines. In this study, the effects of different hot isostatic pressing temperature and pressure on microstructure mechanical properties were studied by means metallographic microscope, scanning electron microscope tensile experiment. The results show that can significantly improve test alloy manufactured SLM. With increase pressure, strength yield decreased slightly, while elongation...
The rock burst caused by geological structures is abrupt and destructive, the special structure of a graben fault decides uniqueness mine ground pressure in mining process. By simplifying structure, evolution law roof stress during recovery process was studied based on theory elastic shear beam. change laws field displacement nearby advancement working face were explored through numerical simulation, instability mechanism strata this revealed. This study will be great significance for...