|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A Review on Binderless Tungsten Carbide: Development and Application显示文摘WC-Co alloys have enjoyed great practical significance owing to their excellent properties during the past decades.Despite the advantages,however,recently there have been concerns about the challenges associated with the use of Co,i.e.price instability,toxicity and properties degeneration,which necessitates the fabrication of binderless tungsten carbide(BTC).On the other hand,BTC or BTC composites,none of them,to date has been commercialized and produced on an industrial scale,but only used to a limited extent for specialized applications,such as mechanical seals undergoing high burthen as well as high temperature electrical contacts.There are two challenges in developing BTC:fully densifying the sintered body together with achieving a high toughness.Thus,this review applies towards comprehensively summarize the current knowledge of sintering behavior,microstructure,and mechanical properties of BTC,highlighting the densification improving strategies as well as toughening methods,so as to provide reference for those who would like to enhance the performance of BTC with better reliability advancing them to further wide applications and prepare the material in a way that is environment friendly,harmless to human health and low in production cost.This paper shows that the fabrication of highly dense and high-performance BTC is economically and technically feasible.The properties of BTC can be tailored by judiciously selecting the chemical composition coupled with taking into careful account the effects of processing techniques and parameters. | Jialin Sun Jun Zhao Zhifu Huang Ke Yan Xuehui Shen Jiandong Xing Yimin Gao Yongxin Jian Hejie Yang Bo Li | 2020 | Nano-Micro Letters2020，12，1： | 8 |
| 2 | Weak magnetic field accelerates chromate removal by zero-valent iron显示文摘Weak magnetic field(WMF) was employed to improve the removal of Cr(VI) by zero-valent iron(ZVI) for the first time. The removal rate of Cr(VI) was elevated by a factor of 1.12–5.89 due to the application of a WMF, and the WMF-induced improvement was more remarkable at higher Cr(VI) concentration and higher p H. Fe2+was not detected until Cr(VI) was exhausted, and there was a positive correlation between the WMF-induced promotion factor of Cr(VI) removal rate and that of Fe2+release rate in the absence of Cr(VI) at pH 4.0–5.5. These phenomena imply that ZVI corrosion with Fe2+release was the limiting step in the process of Cr(VI) removal. The superimposed WMF had negligible influence on the apparent activation energy of Cr(VI) removal by ZVI, indicating that WMF accelerated Cr(VI)removal by ZVI but did not change the mechanism. The passive layer formed with WMF was much more porous than without WMF, thereby facilitating mass transport. Therefore,WMF could accelerate ZVI corrosion and alleviate the detrimental effects of the passive layer, resulting in more rapid removal of Cr(VI) by ZVI. Exploiting the magnetic memory of ZVI, a two-stage process consisting of a small reactor with WMF for ZVI magnetization and a large reactor for removing contaminants by magnetized ZVI can be employed as a new method of ZVI-mediated remediation. | Pian Feng Xiaohong Guan Yuankui Sun Wonyong Choi Hejie Qin Jianmin Wang Junlian Qiao Lina Li | 2015 | Journal of Environmental Sciences2015，27，5： | 2 |
| 3 | Quantitative identification and the evolution characteristics of production–living–ecological space in the mountainous area:From the perspective of multifunctional land显示文摘Developed here is an integrated framework for identifying production–living–ecological space(PLES)quantitatively at grid scale from the perspective of multifunction land use,and 25 compound space types are classified to highlight the multiple functions of PLES.As a typical mountainous city in northern Hebei province,Zhangjiakou is used as a case study,and the results show that more than 80%of the land space in Zhangjiakou has remarkable triple functionality.The living-dominated space and the production-dominated space are distributed mainly in the valleys of the Yanghe,Sanggan,and Huliu rivers and have obvious spatial consistency,while the ecological-dominated space is concentrated mostly at the eastern Yanshan Mountains and southern Taihang Mountains and complements the other two types of space.The former two are spatially fragmented,while the latter has been expanding to the periphery over time.From 1990 to 2015,the ecological-dominated space has increased the most by 1555.02 km^(2),while the living-dominated space has increased the least by 816.79 km^(2).The types of PLES are more diverse in the medium and low mountains and the areas with gentle slope,and the influencing factors include natural ecological environment,socioeconomic development,human consumption demand,and institutional policies.Therefore,these findings can mitigate conflicts among PLES in mountainous and similar areas,and promote the balanced development of land space. | JI Zhengxin LIU Chao XU Yueqing SUN Minxuan WEI Hejie SUN Danfeng LI Yaoyao ZHANG Ping SUN Qiangqiang | 2023 | Journal of Geographical Sciences2023，33，4： | 1 |
| 4 | Prognostic significance of tissue factor pathway inhibitor-2 in pancreatic carcinoma and its effect on tumor invasion and metastasis显示文摘 | Zhigang Tang Guangyong Geng Qiang Huang Geliang Xu Hejie Hu Jiong Chen Jiansheng Li | 2010 | Medical Oncology2010，，3： | 1 |
| 5 | Rapid Measure- ments of Temperature and H20 Concentration in IC En- gines with a Spark Plug-Mounted Diode Laser Sensor 显示文摘 | Rieker G B Hejie Li Xiang Liu | 2007 | Proceedings of the Combustion Institute2007，31，： | 1 |
| 6 | Expression of Tissue Factor Pathway Inhibitor 2 in Human Pancreatic Carcinoma and its Effect on Tumor Growth, Invasion, and Migration In Vitro and In Vivo显示文摘 | Zhigang Tang Guangyong Geng Qiang Huang Geliang Xu Hejie Hu Jiong Chen Jiansheng Li | 2011 | Journal of Surgical Research2011，，1： | 1 |
| 7 | Prognostic significance of tissue factor pathway inhibitor-2 in pancreatic carcinoma and its effect on tumor invasion and metastasis显示文摘 | Zhigang Tang Guangyong Geng Qiang Huang Geliang Xu Hejie Hu Jiong Chen Jiansheng Li | 2010 | Medical Oncology2010，，： | 1 |
| 8 | Identification and genomic analysis of two duck-origin Tembusu virus strains in southern China显示文摘 | Li Linlin An Heji Sun Minhuet a/ | 2012 | Yirus Genes2012，45，1： | 1 |
| 9 | Influenceof friction on surface asperity flattening process in colduniaxial planar compression(CUPC) 显示文摘 | LI Hejie JIANG Zhengyi WEI Dongbin | 2014 | TribologyLetters2014，53，2： | 1 |
| 10 | Degradation of differently processed Mg-based implants leads to distinct foreign body reactions(FBRs)through dissimilar signaling pathways显示文摘Mg alloys have mechanical properties compatible with human bones.However,their rapid degradation and associated foreign body reactions in vivo significantly limit their application for human implants.In this study,three differently processed Mg alloys,pure Mg(PM),cold extruded Mg alloy AZ31(CE AZ31),and fully annealed AZ31 Mg alloy(FA AZ31)were comparatively investigated for their potential as implants using a rat model.All three implanted Mg alloys do not show any impact on hepato-and renal function,nor any signs of observable changes to vital organs.Proteomics analysis of tissues directly contacting the implants 2.5 months post implantation revealed that FA AZ31 activates very few inflammation and immune associated signaling pathways;while the CE AZ31 and PM produce more significant inflammatory responses as confirmed by cytokine array analyses.Further,FA AZ31 activated pathways for cell organization and development that may improve the recovery of injured tissues.Structurally,EBSD analysis reveals that the FA AZ31 alloy has a higher ratio of first-order pyramidal orientated(10–11){10–1–2}grain texture with a value of 0.25,while PM and CE AZ31 alloys have lower ratios of first-order pyramidal orientated texture with the values of 0.16 and 0.17,respectively.This is associated with recovery and recrystallisation during annealing which promotes grain texture which exhibits enhanced degradation behaviours and induces a more limited immune response in vivo.In conclusion,the FA AZ31 demonstrated better biocompatibility and corrosion resistance and is a promising candidate for metal-based degradable implants which warrants further investigation. | Xiaosong Liu Guoqiang Chen Xiongxiong Zhong Tianfang Wang Xiaohong He Weipeng Yuan Pingping Zhang Ying Liu Dongming Cao Shu Chen Ken-ichi Manabe Zhengyi Jiang Tsuyoshi Furushima Damon Kent Yang Chen Guoying Ni Mingyong Gao Hejie Li | 2023 | Journal of Magnesium and Alloys2023，11，6： | 0 |
| 11 | Enhancing corrosion resistance of ZK60 magnesium alloys via Ca microalloying: The impact of nanoscale precipitates显示文摘Enhancing corrosion resistance of Mg-Zn alloys with high strength and low cost was critical for broadening their large-scale practical applications. Here we prepared solutionized, peak-and over-aged ZK60 alloys with and without microalloying Ca(0.26 wt.%) to explore the effects of nanoscale precipitates on their corrosion behavior in detail via experimental analyses and theoretical calculations. The results suggested the peak-aged ZK60 alloy with Ca addition showed improved corrosion resistance in comparison with the alloys without Ca,owing to the contribution of Ca on the refinement of precipitates and increase in their number density. Although the precipitates and Mg matrix formed micro-galvanic couples leading to dissolution, the fine and dense precipitates could generate “in-situ pinning” effect on the corrosion products, forming a spider-web-like structure and improving the corrosion inhibition ability accordingly. The pinning effect was closely related to the size and number density of precipitates. This study provided important insight into the design and development of advanced corrosion resistant Mg alloys. | Wei Fu Hejie Yang Tianshu Li Jiapeng Sun Shengwu Guo Daqing Fang Weichao Qin Xiangdong Ding Yimin Gao Jun Sun | 2023 | Journal of Magnesium and Alloys2023，11，9： | 0 |
| 12 | 3D printed porous titanium filled with mineralized UV-responsive chitosan hydrogel promotes cell proliferation and osteogenesis in vitro显示文摘The modification of 3D printed porous titanium(Ti),especially for the internal pore structure,is critical and has received more attention to promoting its osteogenesis for clinical use.Ultra-violet(UV)responsive chitosan(CSMA),as an injectable filling material,was firstly incorporated into porous Ti,and then CSMA was in-situ mineralized by carbon oxide(CO_(2))diffusion(CSMA/CaCO_(3)).Their physical-chemical and biological properties were investigated in vitro.CaCO_(3) crystals within CSMA hydrogels were successfully deposited into pores of porous Ti,which exhibited favorable biocompatibility.Ti implants filled with CSMA/CaCO_(3) promoted adhesion and proliferation of bone mesenchymal stem cells(BMSCs).Moreover,Ti implant filled CSMA/CaCO_(3) hydrogels could increase alkaline phosphatase(ALP)activities,up-regulate osteopontin(OPN)and osteocalcin(OCN)expression levels,and enhance extracellular mineralization.3D printed porous Ti filled with mineralized UV-responsive chitosan hydrogel could promote proliferation and osteogenesis of BMSCs,and have great potential for the modification of porous Ti implants in bone tissue engineering. | Jiazhao Yang Fan Liu Changshun Zhou Hejie Li Gaolin Yang Shiyuan Fang In-Seop Lee Yi Liu Hao Bai Cen Chen | 2023 | Journal of Materials Science & Technology2023，，11： | 0 |
| 13 | Relaxor ferroelectric properties of 85PZN–15BT transparent ceramic at low temperatures显示文摘Dielectric,hysteresis(P–E)loops and TSDC properties of transparent 85PZN–15BT ceramic over150–150℃ were investigated.The sample was found to exhibit a strong relaxor behavior and a relatively small remanent polarization.TSDC studies showed that there existed an electric field-dependent peak in the p versus T.Such interesting features were attributed to the electric field-induced transition and coexistence of polar nanoregion,long-range ordered polar region and nonpolarizable BZN-rich region. | Lizhu Huang Wei Zhao Wei Ruan Heji Yang Jiangtao Zeng Guorong Li | 2013 | Journal of Advanced Dielectrics2013，3，3： | 0 |
| 14 | Technical Progress of China's Delayed Coking Technology显示文摘This article introduces the recent advances of China in the fields of process technology of delayed coking, enlarged equipment size, hydraulic decoking, automatic control and environmental protection. By the end of 2004 the total capacity of delayed coking units in China had reached 37.24Mt/a with the maximum coke drum diameter equating to 9.4 m. This article also presents the investment in delayed cokers and the current production status while pointing out the existing problems and future development trends. | Zhang Lixin Li Hejie | 2005 | China Petroleum Processing & Petrochemical Technology2005，7，4： | 0 |
| 15 | Design of 8.0Mt/a Atmospheric and Vacuum Distillation Unit显示文摘The design features of 8 Mt/a atmospheric and vacuum distillation unit (Ⅲ) in Zhenhai Refiningand Chemical Company are presented and various process schemes are compared. Production practice hasproved that the main process design is advanced and reasonable and the process parameters basicallyreached design requirements. | Li Hejie(Luoyang Petrochemical Engineering Company ,Luoyang 471003) | 2003 | China Petroleum Processing & Petrochemical Technology2003，5，1： | 0 |
| 16 | Partial portacaval shunt with H-grafts to treat portal hypertension显示文摘Partial portosystemic shunts have been popularized because of a reported low rate of mortality and morbidity(especially encephalopathy,liver failure and occlusion).The results of partial portacaval shunts[small-diameter expanded polytetrafluoroethylene(ePTFE)H-graft portacaval shunt]were retrospectively reviewed to evaluate the clinical efficacy in the treatment of portal hypertension.Forty-three patients with portal hypertension were treated by small-diameter H-graft of ePTFE portacaval shunt from May 1995 to April 2006.Thirty-three had externally ringed grafts and ten had non-ringed ones.Ten had grafts of 10 mm in diameter and 33 had grafts of 8 mm.The left gastric artery and coronary vein were ligated in all the cases.Six had pericardial devascularization and splenectomy was performed in 42.An average decrease of free portal pressure(FPP)from(33.24 P4.78)cmH2O before shunting and(13.65P5.65)cmH2O after shunting was observed.The portal blood flow was reduced by one-third of that before shunt.Thirty-eight patients survived and no upper gastro-intestinal rebleeding occurred in the follow-up period(50.5 months in average).Two were out of contact.Color Doppler ultrasonography and/or portography revealed the shunts were patent in 38 cases and were occluded in three cases(3/41,7.3%).Encephalopathy developed in five cases(5/41,12.2%).Partial(small-diameter ePTFE H-graft)portacaval shunting can reduce the portal pressure effectively.Majority of the hepatic flow from the portal vein can be maintained adequately.The shunts with reinforced grafts can keep a higher rate of patency.The morbidity of encephalopathy was lower than those with total shunt.The partial portacaval shunt is effective in preventing recurrent variceal bleeding. | XU Geliang HU Hejie LI Jiansheng YANG Shugao CHAI Zhongpei XU Rongnan | 2007 | Frontiers of Medicine2007，1，3： | 0 |
| 17 | Modeling texture development during cold rolling of IF steel by crystal plasticity finite element method显示文摘With the consideration of slip deformation mechanism and various slip systems of body centered cubic (BCC) metals, Taylor-type and finite element polycrystal models were embedded into the commercial finite element code ABAQUS to realize crys-tal plasticity finite element modeling, based on the rate dependent crystal constitutive equations. Initial orientations measured by electron backscatter diffraction (EBSD) were directly input into the crystal plasticity finite element model to simulate the develop-ment of rolling texture of interstitial-free steel (IF steel) at various reductions. The modeled results show a good agreement with the experimental results. With increasing reduction, the predicted and experimental rolling textures tend to sharper, and the results simu-lated by the Taylor-type model are stronger than those simulated by finite element model. Conclusions are obtained that rolling tex-tures calculated with 48 {110}<111>+{112}<111>+{123}<111> slip systems are more approximate to EBSD results. | Hejie Li Jingtao Han Huachun Pi Zhengyi Jiang Dongbin Wei A. Kiet Tieu | 2008 | Journal of University of Science and Technology Beijing2008，15，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员