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纳米金刚石及相关材料的真空镀覆及应用进展

金刚石与磨料磨具工程 2017年第4期37卷 67-72页

作者：张艳臧建兵徐汉清韩婵陈丽贝王艳辉燕山大学材料科学与工程学院河北秦皇岛066004

综述了以钛或锰金属粉与纳米金刚石、纳米碳化硅、氮化硅晶须或碳纳米管为原料,通过真空镀法对上述纳米粉体进行表面改性处理后在新能源方面的应用。介绍了钛镀覆纳米金刚石、纳米碳化硅和氮化硅晶须作为铂催化剂载体材料在直接甲醇燃... 详细信息

综述了以钛或锰金属粉与纳米金刚石、纳米碳化硅、氮化硅晶须或碳纳米管为原料,通过真空镀法对上述纳米粉体进行表面改性处理后在新能源方面的应用。介绍了钛镀覆纳米金刚石、纳米碳化硅和氮化硅晶须作为铂催化剂载体材料在直接甲醇燃料电池方面的应用,以及锰镀覆碳纳米管在超级电容器方面的应用。

关键词：纳米金刚石金属粉镀覆

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微波法涂覆纳米金刚石在催化领域应用进展

金刚石与磨料磨具工程 2016年第5期36卷 8-14页

作者：张艳臧建兵田鹏飞徐汉清韩婵王艳辉燕山大学材料科学与工程学院秦皇岛066004

纳米金刚石(nano-diamond,ND)具备高的热稳定性、优异的化学稳定性和足够的比表面积等性质,可作为催化剂载体应用于催化领域。本文综述了利用微波法进行表面涂覆处理的ND在燃料电池方面的应用,重点阐述了以TiO_2/ND(GND,graphic nano-di... 详细信息

纳米金刚石(nano-diamond,ND)具备高的热稳定性、优异的化学稳定性和足够的比表面积等性质,可作为催化剂载体应用于催化领域。本文综述了利用微波法进行表面涂覆处理的ND在燃料电池方面的应用,重点阐述了以TiO_2/ND(GND,graphic nano-diamond)和TiN/ND为载体制备的铂催化剂和以ND作为基础材料的钴氮共掺碳材料非铂催化剂Co–N–C/ND的制备方法。详述了通过XRD和TEM分析得出的上述生成产物的物相、形貌和组成,以及实验测定的Pt/TiO_2/ND(GND)、Pt/TiN/ND和Co–N–C/ND催化剂的电化学性能。结果显示:用微波法对纳米金刚石表面进行涂覆,可提高其性能,拓展其在催化领域的应用。

关键词：纳米金刚石微波法涂覆

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纳米陶瓷结合剂超硬磨具的制造工艺

金刚石与磨料磨具工程 2008年第6期28卷 9-11,16页

作者：王艳辉张向红葛恩报张金辉臧建兵亚稳材料制备科学与技术国家重点实验室燕山大学西校区材料学院秦皇岛066004 河北建材职业技术学院秦皇岛066004

纳米陶瓷结合剂是一种新型的超硬磨具结合剂，它显著降低了磨具烧结温度，大幅度提高了制品强度、韧性和耐磨性，且气孔可控，为陶瓷结合剂的应用开拓了一个崭新的领域。本文阐述了纳米陶瓷的性能及关键方法，特别对纳米陶瓷结合剂超硬... 详细信息

纳米陶瓷结合剂是一种新型的超硬磨具结合剂，它显著降低了磨具烧结温度，大幅度提高了制品强度、韧性和耐磨性，且气孔可控，为陶瓷结合剂的应用开拓了一个崭新的领域。本文阐述了纳米陶瓷的性能及关键方法，特别对纳米陶瓷结合剂超硬工具的成型工艺方法进行了研究。结果表明，在纳米陶瓷结合剂中加入20％-30％的水和适量的表面活性剂，可以提高成型密度、毛坯强度和制品的抗折强度，抗折强度高于100MPa。经过烧结，纳米陶瓷结合剂与金刚石和CBN超硬磨料润湿性良好、结合力大，在烧结过程中与超硬磨料不发生反应、不腐蚀损伤超硬磨料。成功用于磨削PCD复合片的金刚石陶瓷砂轮。

关键词：纳米陶瓷结合剂超硬磨具低温高强可控气孔

ZrO_2(Y_2O_3)增韧SiC中介结合的金刚石聚晶烧结体的相结构与性能

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人工晶体学报 1998年第2期27卷 156-159页

作者：臧建兵王明智王艳辉燕山大学材料工程学院

本文采用恒沸腾水解法制备了颗粒度均一的亚微米晶ＺｒＯ２（Ｙ２Ｏ３）粉体，并以其为增韧相，在高温（１３５０℃）超高压（５ＧＰａ）条件下制备ＺｒＯ２（Ｙ２Ｏ３）＋ＳｉＣ＋金刚石的聚晶烧结体（ＰＣＤ）。用ＸＲＤ、ＳＥＭ背散... 详细信息

本文采用恒沸腾水解法制备了颗粒度均一的亚微米晶ＺｒＯ２（Ｙ２Ｏ３）粉体，并以其为增韧相，在高温（１３５０℃）超高压（５ＧＰａ）条件下制备ＺｒＯ２（Ｙ２Ｏ３）＋ＳｉＣ＋金刚石的聚晶烧结体（ＰＣＤ）。用ＸＲＤ、ＳＥＭ背散射分析、冲击韧性测定和磨耗比测定研究了不同含量Ｙ２Ｏ３稳定的ＺｒＯ２粉体对ＳｉＣ－金刚石聚晶烧结体结构及机械性能的影响，结果表明：ＺｒＯ２（Ｙ２Ｏ３）粉体中Ｙ２Ｏ３含量＜２．２ｍｏｌ％时，ＺｒＯ２以四方ｔ相＋单斜ｍ相的混合相形式存在于烧结体的结合剂基体上，ｔ相量随Ｙ２Ｏ３含量增加而增加，对ＳｉＣ－金刚石聚晶烧结体的增韧来源于相变增韧和微裂纹增韧的叠加，当Ｙ２Ｏ３含量＞２．２ｍｏｌ％时，ＺｒＯ２以１００％ｔ相存在，增韧机制为相变增韧。在２．０ｍｏｌ％～２．２ｍｏｌ％Ｙ２Ｏ３含量范围内，ＰＣＤ可获得较高的磨耗比和冲击韧性。

关键词：金刚石聚晶烧结体超高压二氧化锆碳化硅

Gram-scale synthesis of all-inorganic perovskite quantum dots with high Mn substitution ratio and enhanced dual-color emission

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Nano Research 2019年第7期12卷 1733-1738页

作者： Lvming Dong Zhuo Chen Lei Ye Yan Yu jianbing Zhang Huan Liu Jianfeng zang School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China Innovation Institute Huazhong University of Science and TechnologyWuhan 430074China

Mn-doped all-inorganic perovskite quantum dots (QDs) provide prominent applications in the fields of low-cost light source or display,because of their remarkable properties including dual-color emission and reduced lead content,as well as high photoluminescence quantum yields (PLQYs) and high ***,the existing synthesis approaches usually require hash conditions,such as high temperature and nitrogen protection,which is a major hurdler for the practical *** addition,the significantly high Mn substitution ratio in CsPbX3 QDs is still *** real dual-color emission with two strong emission peaks in the Mn-doped all-inorganic perovskite QDs has attracted great *** we present a gram-scale approach to synthesize both CsPbxMn1-xCI3 and CsPb1-xMnxClyBr3-y QDs at 100 ℃ in the air with high Mn substitution ratio,up to 55.64% *** as-prepared CsPb1-xMnxClyBr3-y QDs exhibit high PLQYs of 62.41% and dual-color emission with two strong emission peaks around at 400-450 nm and 600 nm,*** enhanced peak at 400-450 nm is a result of the hybrid halides in CsPbBrxCl3-x ***,the unique advantage of the optical emission and high PLQYs properties of the CsPbxMn1-xCl3 QDs has been demonstrated as invisible ink for encryption applications and polymer *** gram-scale synthesis approach for Mn-doped all-inorganic perovskite QDs may boost the future research and practical applications of QDs-based white LED,spintronics,and molecular barcoding.

关键词： gram-scale enhanced dual-color emission all-inorganic perovskite quantum dots invisible ink polymer composites

Formation Mechanism of Ground Fissures Originated from the Hanging Wall of Normal Fault:A Case in Fen-Wei Basin,China

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Journal of Earth Science 2022年第2期33卷 482-492页

作者： Zhijie Jia jianbing Peng Quanzhong Lu Jianwei Qiao Feiyong Wang Mingdong zang Yang Liu Junyan Zhao Fengji Zhu School of Geological Engineering and Geomatics Chang an UniversityXi'an 710054China Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education Chang'an UniversityXfan 710064China China JK Institute of Engineering and Design Xfan 710043China Shaanxi Key Laboratory for the Property and Treatment of Special Soil and Rock Xfan 710043China School of Engineering and Technology China University of GeosciencesBeijing 100083China

This paper takes Fen-Wei Basin(FWB)as a case to study the ground fissures controlled by normal *** on the field investigation,geophysical exploration,drilling,GNSS data and numerical calculation,the characteristics and mechanism of ground fissures originated from the hanging wall of normal faults are *** results show that the distribution of ground fissures in the hanging wall and heading wall of the active faults is not *** fissures are mostly distributed in the hanging wall of active faults and show a linear distribution on the surface,their strike is consistent with the fault,mainly characterized by vertical offset and horizontal *** fissures destroy the farmland and building foundation through which they pass and cause the rupture or *** profile section,the ground fissure shows the characteristics of normal faults and dislocates the strata,and is connected with the underlying *** analysis shows that the vertical displacement of normal fault activity in hanging wall is much larger than that in heading wall,which is the reason that tectonic ground fissures mainly originate from hanging *** range of dangerous area of ground fissures is controlled by the depth of fault,the strength of the ground fissures disaster is mainly controlled by the activity of *** formation of the ground fissures originated from the hanging wall of the fault experienced three stages:the main fault activity stage,the secondary fault activity stage and the fissure formation stage.

关键词： ground fissure Fen-Wei Basin active fault dislocation theory formation mechanism hazards engineering geology

A Comprehensive Method for the Risk Assessment of Ground Fissures:Case Study of the Eastern Weihe Basin

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Journal of Earth Science 2023年第6期34卷 1892-1907页

作者： Zhijie Jia jianbing Peng Quanzhong Lu Penghui Ma Jianwei Qiao Feiyong Wang Mingdong zang Yang Liu Junyan Zhao Fengji Zhu School of Geological Engineering and Geomatics Chang'an UniversityXi'an 710054China Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education Chang'an UniversityXi'an 710064China China JK Institute of Engineering and Design Xian 710043China School of Engineering and Technology China University of GeosciencesBeijing 100083China

Ground fissures are influenced by the coupling of geological factors and human *** threaten the safety of infrastructure and restrict town planning in many areas in *** of the area most severely affected by ground fissures is the Weihe Basin in North China,which has the most extensive distribution of ground fissures and all the elements that control their occurrence,pro-viding an ideal study area for the study of ground *** this study,we took the eastern Weihe Ba-sin as the study area and determined the distribution and hazard characteristics of ground fissures via field *** on the analytic hierarchy process,we propose a multi-level,comprehensive method for evaluating the hazards of ground *** method considers the geological back-ground,development status,and triggering factors of ground fissures,including all nine currently known assessment indices of ground *** used judgment matrices to rank the constructed ground fissure assessment index system at the single and total levels and quantified the nine assessment indices of ground fissures according to the field survey ***,we plotted the ground fissure risk zoning map and evaluated the ground fissure risk at the study *** findings indicated that the proposed method could facilitate ground fissure hazard assessment and prediction and provide support for hazard prevention and urban/rural planning.

关键词： ground fissure analytic hierarchy process hazards risk assessment hazard prevention

气相色谱法测定聚乙二醇200中乙二醇、二甘醇、三甘醇和四甘醇含量

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质量安全与检验检测 2024年第3期34卷 6-9页

作者：孔祥祥李建兵陈东孙晨磊王婷孙云臧金秋宋蕾梁野青岛市产品质量检验研究院山东青岛266101

建立气相色谱-氢离子火焰测定聚乙二醇200中乙二醇、二甘醇、三甘醇和四甘醇的测定方法。用一级水将聚乙二醇200稀释后直接测定,前处理操作简单。结果显示,乙二醇、二甘醇、三甘醇和四甘醇在测定浓度范围内线性良好,线性相关系数均大于0... 详细信息

建立气相色谱-氢离子火焰测定聚乙二醇200中乙二醇、二甘醇、三甘醇和四甘醇的测定方法。用一级水将聚乙二醇200稀释后直接测定,前处理操作简单。结果显示,乙二醇、二甘醇、三甘醇和四甘醇在测定浓度范围内线性良好,线性相关系数均大于0.99,回收率分别为93.9%~116.9%,平均相对标准偏差(RSD)为0.19%~1.40%。该方法简单、快速、准确,可以满足聚乙二醇200中乙二醇、二甘醇、三甘醇和四甘醇测定的需要。

关键词：气相色谱-火焰离子检测器聚乙二醇200 乙二醇二甘醇三甘醇四甘醇

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肺结节病的中医证治探讨

中华中医药学刊 2024年第4期42卷 97-101页

作者：廖尖兵廖用兵曲妮妮庞立健吕晓东辽宁中医药大学辽宁沈阳110847 辽宁中医药大学附属医院辽宁沈阳110032

从病因病机、辨证分型、中医治疗三个方面对肺结节病进行探讨,得出肺结节病病因主要有外感病因之六淫邪气和雾霾废气等秽浊之邪,内伤病因之情志失调、饮食所伤、劳逸所伤,病理产物病因之痰湿瘀毒为患,其他病因之先天禀赋失常及罹患其他... 详细信息

从病因病机、辨证分型、中医治疗三个方面对肺结节病进行探讨,得出肺结节病病因主要有外感病因之六淫邪气和雾霾废气等秽浊之邪,内伤病因之情志失调、饮食所伤、劳逸所伤,病理产物病因之痰湿瘀毒为患,其他病因之先天禀赋失常及罹患其他慢性疾病;病机为肺脏虚损,病理产物阻之于肺,塞而不通,发为结节;辨证分型上外感型分风噪、风寒、风热、风湿、火热之不同,内伤型可有肝郁气滞、脾虚痰湿、肺气虚耗,病理产物型又有痰浊阻肺、痰瘀郁肺、痰瘀化毒之各异,他因型则分为阳虚证与气阴两虚证;治疗上提出五法论治和痰瘀论治,汗而发之以祛邪,清而解之通过泻、解、凉以除邪热,和而平之以调诸脏,和气血,下而除之以清里热、祛瘀血,虚而补之养气血阴阳、调虚弱,同时以化痰祛瘀解毒以通肺络;同时也提出中医疗养法治疗肺结节病,通过舒情志,畅气机,调和气血阴阳,培补正气以化结节,以期为肺结节病中医证治规范化略尽绵薄之力,为临床肺结节病治疗提供思路。

关键词：肺结节病病因病机辨证论治中医证治