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Rare Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao Zhang Wen Huang Fu-Jie Yu Qi Zhao Xin-Dong Zhu Tao Feng Yao Jiang Xiao-Ming li Xue-Fei Miao He Zhu Si Lan Xue-Qian wang Bao-Long Shen Zhe Jia Feng-Qi Zhang Wei wang Qi liu Yang Ren Xun-li wang Xiao-Ya Cui Xiao-Yang wang Ya-Nan Chen Bing-Bing Fan Meng-Ru li Qi-Long Gao Jia-Ming Guo Zeng-Bao Jiao Zhi-Min Guo Yu-Ping Zhao Qian Yu Rui Huang ling-Kun Zhang Yi-Ping Lu Xu-Bo li Huai-Jun lin Yan Ma Wei-Ming Yang Zhi-Hua Shen Hai-Yan He Yong-gang Sun Yong-Jiang Huang De-Zhuang wang Qing-Feng liu Fei-Yang wang Hui liu Hong-Hui Wu li-Qiang wang Yang Lu Nan wang Tian-li wang Wei-Bing liao Yi-Han wang yuan Wu Yu-Zhen Yin Jie Pan Yi Zhang Qing wang Jian-Yang Zhang Tao Yang Yasir Sohail Jin-Yu Zhang Hua Ji Qiang li Wei-Di liu Zhi-gang Chen Xiong-Jun liu Wen Ma liang Mao Zhen-Duo Wu School of Materials Science and engineering Nanjing University of Science and Technology Jiangsu Key Laboratory for Advanced Metallic Materials School of Materials Science and Engineering Southeast University Department of Physics City University of Hong Kong School of Materials Science and engineering Tianjin University School of Physics and Microelectronics Zhengzhou University Department of Mechanical engineering Research Institute for Advanced Manufacturing The Hong Kong Polytechnic University center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Key Laboratory of Solidification Control and Digital Preparation Technology (liaoning Province) School of Materials Science and Engineering Dalian University of Technology Institute of Advanced Wear & Corrosion Resistance and Functional Materials Jinan University School of Mechanics and Civil engineering China University of Mining and Technology School of Physical Sciences Great Bay University School of Materials Science andengineering Harbin Institute of Technology State Key Laboratory of Materials-Oriented Chemical engineering College of Chemical Engineering Nanjing Tech University Beijing Advanced Innovation center for Materials Genome engineering Research Institute for Carbon Neutrality University of Science and Technology Beijing Department of Mechanical engineering The University of Hong Kong School of Computing Macquarie University Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Institute of materials Shanghai University Department of Materials Science and engineering C

Owing to their exceptional properties, high-entropy alloys(HEAs) and high-entropy materials have emerged as promising research areas and shown diverse applications. Here,the recent advances in the field are comprehensively reviewed,organized into five sections. The first section introduces the background of HEAs, covering their definition, significance,application prospects, basic properties, design principles, and microstructure. The subsequent section focuses on cutting-edge high-entropy structural materials, highlighting developments such as nanostructured alloys, grain boundary engineering,eutectic systems, cryogenic alloys, thin films, micro-nano-lattice structures, additive manufacturing, high entropy metallic glasses, nano-precipitate strengthened alloys, composition modulation, alloy fibers, and refractory systems. In the following section, the emphasis shifts to functional materials, exploring HEAs as catalysts, magneto-caloric materials, corrosion-resistant alloys, radiation-resistant alloys, hydrogen storage systems, and materials for biomedicine. Additionally, the review encompasses functional high-entropy materials outside the realm of alloys, including thermoelectric, quantum dots, nanooxide catalysts, energy storage materials, negative thermal expansion ceramics,and high-entropy wave absorption materials. The paper concludes with an outlook, discussing future directions and potential growth areas in the field. Through this comprehensive review,researchers, engineers, and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.

关键词： Cutting-edge structural materials Cutting-edgefunctional materials High entropy alloys

基于三线性应变软化模型的综采工作面煤壁片帮深度解析预测

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煤炭科学技术 2024年第7期52卷 1-10页

作者：迟国铭李刚张春会徐刚辽宁工程技术大学矿业学院辽宁阜新123000 河北科技大学河北省岩土与结构体系防灾减灾技术创新中心河北石家庄050018 天地科技股份有限公司开采设计事业部北京100013

为预测综采工作面煤壁片帮深度,以煤壁为研究对象,煤壁煤体视作三线性应变软化材料;将直接顶和基本顶视作宏观顶板,建立了宏观顶板与煤层、支架相互作用的承载力学模型,结合边界条件推导了综采工作面煤壁片帮深度解析计算公式,利用该公... 详细信息

为预测综采工作面煤壁片帮深度,以煤壁为研究对象,煤壁煤体视作三线性应变软化材料;将直接顶和基本顶视作宏观顶板,建立了宏观顶板与煤层、支架相互作用的承载力学模型,结合边界条件推导了综采工作面煤壁片帮深度解析计算公式,利用该公式研究上湾煤矿12401工作面煤壁片帮情况,分析影响煤壁片帮的因素及影响规律,结果表明:①推导获得的煤壁片帮深度计算公式能够较准确计算综采工作面煤壁片帮深度,能够定量分析顶板特性和支架参数等对煤壁片帮深度的影响。②增加支架初撑力能够降低煤壁片帮深度;增加支架刚度能够降低煤壁片帮深度,但效果较差;增加支架护帮板支护强度,煤壁片帮深度近似线性减小。③顶板厚度和抗拉强度增加,煤壁片帮深度增长,但增长速率随顶板厚度和抗拉强度增加逐渐趋缓。这主要由于顶板厚度和抗拉强度增加,顶板破断步距增大,向采空区内旋转下沉角度增大所致。④综采采高对煤壁片帮深度有很大影响,综采采高增大,煤壁片帮深度近似线性增长。⑤煤体单轴抗压强度增大,煤壁片帮深度减小,顶底板与煤层界面之间的摩擦因数增大,煤壁片帮深度减小。⑥顶板动载系数增大,煤壁片帮深度近似线性增大。

关键词：综采工作面煤壁片帮深度预测液压支架宏观顶板结构

Smart crystalline frameworks constructed with bisquinoxaline-based component for multi-stimulus luminescent sensing materials

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Chinese Journal of structural Chemistry 2023年第2期42卷 9-22页

作者： Peng-Da liu Ao-gang liu Peng-Min wang yuan Chen Bao li Key Laboratory of Material Chemistry for Energy Conversion and Storage Semiconductor Chemistry CenterSchool of Chemistry and Chemical EngineeringHubei Key Laboratory of Bioinorganic Chemistry&Materia MedicaHuazhong University of Science and TechnologyWuhanHubei 430074People's Republic of China

Crystalline materials with well-defined structures and ordered molecular arrays can provide a new research platform to fabricate new smart materials with excellent stimulus response *** them,Luminescent Metal-Organic Frameworks(LMOFs)and Hydrogen-bonding Organic Frameworks(HOFs)show great promise for fluorescence detection to different *** order to further extend the smart sensing frameworks and enhance the relevant sensing performance,the present work specifically selects 4,4',4",4(")-([6,6'-biquinoxaline]-2,2',3,3'-tetrayl)tetrabenzoic acid(H4L)consisting of the bisquinoxaline functional group as an optical response group,and HOF(HUST-25,HUST=Huazhong University of Science and Technology),Zn-MOF(HUST-26),and Cd-MOF(HUST-27)were successfully *** could achieve the fluorescence recognition of Fe^(3+),MnO_(4)^(-),Cr_(2)O_(7)^(2-),p-nitrotoluene(4-NP),2,4,6-trinitrotoluene(TNP)and metronidazole(MDZ).The detection range of Zn-MOF constructed using Zn ions was similar to that of HOF,but the detection sensitivity of metal cations was significantly *** Cd-MOF formed a six-fold interpenetrating structure,it was still able to retain a large pore *** dense stacking structure increases the quinoxaline density,which effectively expanded the sensitivity and detection range of fluorescence ***,Cd-MOF showed better detection for nitro explosives,antibiotics,and organic small molecules with ketone *** example,compared to the previous literatures,Cd-MOF has a larger Ksv value for the nitro-explosive nitrobenzene(NB),indicating the very high detection *** series frameworks can present excellent sensing properties mainly because the func-tional primitives can be uniformly distributed in the skeleton of the crystalline materials,forming an ordered molecular array that enables the efficient energy transfer between the external stimulus signal and the response function *** related results indic

关键词： Metal-organic framework Hydrogen bonding organic framework Luminescent sening Bisquinoxaline group Sensor

Fe_(3)O_(4)@CuMOF催化文冠果油制备生物柴油的研究

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林产工业 2024年第7期61卷 28-34页

作者：郝一男王任飞张国王晶文任志远沈洪霞王德刚姚利宏内蒙古农业大学材料科学与艺术设计学院内蒙古呼和浩特010018 国家林业草原沙生灌木高效开发利用工程技术研究中心内蒙古呼和浩特010018 内蒙古地矿生态建设有限责任公司内蒙古呼和浩特010018 鄂尔多斯市造林总场内蒙古鄂尔多斯014300

金属有机框架(MOFs)材料的高表面积、结构稳定性和可调功能使其成为制备生物柴油的理想催化剂。本文通过溶剂热法制备磁性Fe_(3)O_(4)@Cu MOF催化剂,利用傅里叶红外变换光谱(FTIR)、扫描电镜(SEM)、能谱分析(EDS)、X射线衍射(XRD)、N2... 详细信息

金属有机框架(MOFs)材料的高表面积、结构稳定性和可调功能使其成为制备生物柴油的理想催化剂。本文通过溶剂热法制备磁性Fe_(3)O_(4)@Cu MOF催化剂,利用傅里叶红外变换光谱(FTIR)、扫描电镜(SEM)、能谱分析(EDS)、X射线衍射(XRD)、N2吸脱附(BET)、热重分析(TG)等手段对催化剂的微观结构和热稳定性进行表征,并应用于文冠果油制备生物柴油的反应中。结果表明:Fe_(3)O_(4)@Cu MOF催化剂表面粗糙多孔,比表面积为206.239 m^(2)/g,平均孔径为6.64 nm,属于介孔材料。Fe_(3)O_(4)@Cu MOF的饱和磁化强度为12.6 emu/g,易分离回收。当催化剂用量为3 wt%、醇油摩尔比为20∶1、反应温度为60℃、反应时间为2 h时,生物柴油产率最高,为75.0%。Fe_(3)O_(4)@Cu MOF循环使用5次后,其催化生物柴油的产率仍能达到69.25%。

关键词： Fe_(3)O_(4)@Cu MOF催化剂生物柴油文冠果油稳定性产率

煤矿巷道断层滑移型冲击地压试验系统研制与试验验证

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煤炭学报 2024年第9期49卷 3701-3710页

作者：康红普高富强王晓卿柏建彪王琦章冲王襄禹杨磊娄金福李延辉王学宁原贵阳中煤科工开采研究院有限公司北京100013 煤炭科学研究总院开采研究分院北京100013 煤炭智能开采与岩层控制全国重点实验室北京100013 中国矿业大学矿业工程学院江苏徐州221116 山东大学岩土与结构工程研究中心山东济南250061

断层滑移型冲击地压是煤矿冲击地压的主要类型,目前对其发生全过程缺乏系统研究,其机理与防控仍是根本难题。为实现断层滑移型冲击地压的试验模拟,研制了煤矿巷道断层滑移型冲击地压试验系统,开发了低强高脆相似模拟材料,制备了包含断... 详细信息

断层滑移型冲击地压是煤矿冲击地压的主要类型,目前对其发生全过程缺乏系统研究,其机理与防控仍是根本难题。为实现断层滑移型冲击地压的试验模拟,研制了煤矿巷道断层滑移型冲击地压试验系统,开发了低强高脆相似模拟材料,制备了包含断层与巷道的大尺寸相似模型,开展了一系列验证试验,实现了巷道冲击破坏模拟与断层剪切滑移模拟。煤矿巷道断层滑移型冲击地压试验系统具备三向六面加载功能,竖向加载能力为20 MPa,模型尺寸为1.50 m×0.75 m×0.75 m;主体框架创新采用键板连接,确保了主体框架的高刚度;发明了蜂窝加载壳结构,实现了密集油缸群加载,能够满足断层滑移型冲击地压试验模拟的要求。开发了适用于断层滑移型冲击地压模拟的相似材料,材料以水玻璃为胶结物、以氟硅酸钠为固化剂、以滑石粉为骨料,单轴抗压强度介于3.44~7.81 MPa,冲击能指数为9.2,弹性能指数为8.83,兼具低强高脆特性。基于试验系统和低强高脆材料实现了静载巷道冲击破坏模拟,验证了低强高脆相似材料模拟巷道冲击破坏的可行性,获得了巷道极限平衡状态的加载条件,巷道帮部连续片落为巷道冲击破坏的显著前兆特征。实现了粗糙锯齿断层的剪切滑移模拟,证实粗糙断层剪切滑移会对巷道形成动载扰动,获得了断层剪切滑移的合理加载方式,采用动区顶部先加载、底部后卸载的方式能够实现断层的瞬间滑移,并能消除对静区应力状态的影响。

关键词：断层滑移型冲击地压试验系统低强高脆相似材料物理模拟巷道冲击破坏

全风化花岗岩突水通道扩展的颗粒起动流速研究

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岩土力学 2017年第4期38卷 1179-1187页

作者：刘金泉杨典森陈卫忠袁敬强李长俊亓宪寅中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室湖北武汉430071 中国科学院大学北京100049 山东大学岩土与结构工程研究中心山东济南250061

突水突泥是富水全强风化花岗岩隧道施工常见的地质灾害,地层颗粒的流失是导致突水通道扩展的关键因素,其中颗粒达到起动流速是其流失的临界条件。考虑水流冲刷和土体黏结作用,对突水通道断面颗粒进行三维受力分析,导出颗粒的临界起动条... 详细信息

突水突泥是富水全强风化花岗岩隧道施工常见的地质灾害,地层颗粒的流失是导致突水通道扩展的关键因素,其中颗粒达到起动流速是其流失的临界条件。考虑水流冲刷和土体黏结作用,对突水通道断面颗粒进行三维受力分析,导出颗粒的临界起动条件,建立了考虑颗粒粒径、颗粒坡面位置、相对暴露度三因素的颗粒起动流速函数,并利用数值方法分析了上述三因素对起动流速的影响规律。计算分析表明:起动流速随粒径增大先减小后增大,通道断面不同坡面位置颗粒起动流速呈明显的对称性,总体上起动流速随相对暴露度的增大呈增大趋势。采用正交试验法研究了三因素对颗粒起动流速的敏感性,发现粒径对起动流速影响最为显著。同时根据断面颗粒起动最小流速标准及相对暴露度的随机性,简化颗粒坡面位置和相对暴露度两因素,导出颗粒起动流速的简化公式,最后利用室内试验和工程实例验证了该公式的合理性。

关键词：全风化花岗岩突水通道起动流速粒径颗粒坡面位置相对暴露度

Exposing Cu-rich {110} active facets in PtCu nanostars for boosting electrochemical performance toward multiple liquid fuels electrooxidation

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Nano research 2019年第5期12卷 1147-1153页

作者： liping Huang Wei Zhang Peng li Yongbo Song Hongting Sheng yuanxin Du Yang-gang wang Yuen Wu Xun Hong Yanhuai Ding Xiaoyou yuan Manzhou Zhu Department of Chemistry and center for Atomic engineering of Advanced Materials Anhui UniversityHefei 230601China Department of Chemistry and Shenzhen Grubbs Institute Southern University of Science and TechnologyShenzhen 518055China center of Advanced Nanocatalysis (CAN) and Department of Chemistry University of Science and Technology of ChinaHefei 230026China College of Civil engineering & Mechanics Xiangtan UniversityXiangtan 411105China

In catalysis,tuning the structural composition of the metal alloy is known as an efficient way to optimize the catalytic *** work presents the synthesis of compositional segregated six-armed PtCu nanostars via a facile solvothermal method and their distinct composition-structure-dependent performances in electrooxidation *** alloy is shown to have a unique six arms with a Cu-rich dodecahedral core,mainly composed of {110} facets and exhibit superior catalytic activity toward alcohols electrooxidation compared to the hollow counterpart where Cu was selectively *** functional theory (DFT) calculations suggest that the formation of hydroxyl intermediate (OH^*) is crucial to detoxify CO poisoning during the electrooxidation *** addition of Cu is found to effectively adjust the d band location of the alloy catalyst and thus enhance the formation of ^*OH intermediate from water splitting,which decreases the coverage of ^*CO *** work demonstrates that the unique compositional anisotropy in alloy catalyst may boost their applications in electrocatalysis and provides a methodology for the design of this type catalyst.

关键词： element-specific etching crystal facet PtCu nanostars methanol oxidation

淤泥质钻渣土碳化造粒方法及强度增长机理试验

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中国公路学报 2024年第6期37卷 217-227页

作者：曹志刚申昆鹏毛天学肖力庄峻淇浙江大学滨海和城市岩土工程研究中心浙江杭州310058 浙江交工集团股份有限公司浙江杭州310052

为实现淤泥质钻渣土低碳与多样化利用,自主研制了温湿控碳化反应釜,对淤泥质钻渣土造粒碳化方法及其强度增长机理开展了系统试验研究。首先使用熟石灰对桩基施工产生钻渣进行改性,并制成粒径12 mm的颗粒状坯料;在反应釜中充入CO_(2)气体... 详细信息

为实现淤泥质钻渣土低碳与多样化利用,自主研制了温湿控碳化反应釜,对淤泥质钻渣土造粒碳化方法及其强度增长机理开展了系统试验研究。首先使用熟石灰对桩基施工产生钻渣进行改性,并制成粒径12 mm的颗粒状坯料;在反应釜中充入CO_(2)气体,在恒温、恒湿(60℃,湿度80%)条件下对坯料碳化养护8 h,实现钻渣土高强度造粒。碳化结束后,对颗粒进行热重分析(TG)、X射线衍射(XRD)、颗粒强度试验,分析了7种不同熟石灰掺量下碳化颗粒强度增长机理。试验表明,碳化颗粒的碳化率能达到80%以上,主要生成物为方解石型碳酸钙晶体,且碳化颗粒强度随熟石灰掺量增加表现为“先缓增-后快增”的两阶段特点;当熟石灰掺量在12%以下时,碳化颗粒强度随熟石灰掺量缓慢增长,当掺量超过12%以后,碳化生成的大量方解石胶黏土颗粒并形成整体骨架,晶粒尺寸也随掺量逐渐减小并膨胀填充孔隙,颗粒强度进入快增阶段;最终颗粒碳化强度可达3.0 MPa以上。此外,水稳定性试验表明,熟石灰掺量达16%以上时,碳化颗粒具备A等水稳定性能。碳排放分析表明本方法制备的碳化颗粒CO_(2)排放相对陶粒减少了42.7%~52.6%,减碳效益显著。本研究为绿色处置钻渣土,实现其在路基层填料、路基台背填料等场景中利用提供了技术方案。

关键词：路基工程淤泥质钻渣土碳化造粒路基填料低碳减排

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数值方法在矿井涌水量预测中的应用

山东大学学报（工学版） 2011年第5期41卷 86-91页

作者：马秀媛李逸凡张立张庆松李海燕李术才山东大学岩土与结构工程研究中心山东济南250061

以实际工程为例,将数值方法应用到矿井涌水量的预测研究上。首先对龙固煤矿辅二大巷矿井水文地质条件进行详细分析,将所研究区域的含水层、边界条件以及源汇项进行了概化,建立符合实际情况的地下水流数学模型;然后利用有限差分数值模拟... 详细信息

以实际工程为例,将数值方法应用到矿井涌水量的预测研究上。首先对龙固煤矿辅二大巷矿井水文地质条件进行详细分析,将所研究区域的含水层、边界条件以及源汇项进行了概化,建立符合实际情况的地下水流数学模型;然后利用有限差分数值模拟方法,借助Visual Modflow软件实现龙固煤矿辅二大巷地下水位及涌水量预测;最后根据注浆加固方案数值模拟结果,选定合适的顶底板注浆加固方案,模拟注浆加固后巷道涌水量减少为300m3/h,其对应巷道位置的压力水头下降到100 m左右。数值模拟结果为提出合理的注浆堵水加固方案提供了理论依据,对龙固煤矿辅二大巷涌水治理工程进行了指导。

关键词：矿井涌水量数值模拟 Visual Modflow 注浆加固