|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effects of(Mg_(1/3)Sb_(2/3))^(4+)substitution on the structure and microwave dielectric properties of Ce_(2)Zr_(3)(MoO_(4))_(9) ceramics显示文摘Ce2[Zr_(1-x)(Mg_(1/3)Sb_(2/3))_(x)]_(3)(MoO_(4))_(9)(0.02≤x≤0.10)ceramics were prepared by the traditional solid-state method.A single phase,belonging to the space group of R3c,was detected by using X-ray diffraction at the sintering temperatures ranging from 700 to 850℃.The microstructures of samples were examined by applying scanning electron microscopy(SEM).The crystal structure refinement of these samples was investigated in detail by performing the Rietveld refinement method.The intrinsic properties were calculated and explored via far-infrared reflectivity spectroscopy.The correlations between the chemical bond parameters and microwave dielectric properties were calculated and analyzed by Phillips-van Vechten-Levine(P-V-L)theory.Ce_(2)[Zr_(0.94)(Mg_(1/3)Sb_(2/3))_(0.06)]_(3)(Mo0_(4))_(9)ceramics with excellent dielectric properties were sintered at 725℃for 6 h(εr=10.37,Q×f=71,748 GHz,andτf=-13.6 ppm/℃,εr is the dielectric constant,τf is the quality factor,and rf is the temperature coefficient of resonant frequency). | Xu ZHOU Lintao LIU Jiajia SUN Ningkang ZHANG Huazhang SUN Haitao WU Wenhong TAO | 2021 | Journal of Advanced Ceramics2021，10，4： | 4 |
| 2 | Role of Y_(4)Al_(2)O_(9)in High Temperature Oxidation Resistance of NiCoCrAlY-ZrO_(2)·Y_(2)O_(3)Coatings显示文摘NiCoCrAlY-ZrO2 · Y 2O3 涂层被使用联合电子,原子和离子横梁(三根横梁) 的一种技术在底层上扔。为这些样品的等温的氧化为热地成年的氧化物(TGO ) 层在高温度以后根据样品的 thecross 节形态学在 NiCoCrAlY 层和 ZrO2 · Y 2O3 层之间被形成的 100-300 h.The 结果表演在 1100 deg C 被执行等温的氧化。alpha-Al2O3/Y4Al2O9 的 TGOcontains alpha-Al2O3 和 Y4Al2O9 etc.oxides.The 紧张比率单调地与基于 analysis.TheY4Al2O9 阶段玩的 XRD (X 光检查衍射) 增加氧化时间被减少在在 1100 degC.The 的高温度氧化抵抗的最重要的角色联系了机制也被讨论。 | Shuqin YANG Xiaohua LAN Ningkang HUANG | 2007 | Journal of Materials Science & Technology2007，23，4： | 1 |
| 3 | XPS study of hydrogen peermeation effect on SiC-C films 显示文摘 | Huang Ningkang Wang Dezhi Xiong Qi | 2003 | Nuclear Instruments and Methods in Physics Research B2003，207，： | 1 |
| 4 | Microanalyses on the hydrogen permeated 70 % SIC-C films 显示文摘 | Huang Ningkang Wang Dezhi Liu Yaoguang | 2004 | Materials Research Bulletin2004，39，： | 1 |
| 5 | Microanalysis on the Hydrogen Ion Irradiated 50 wt pct TiC-C Films显示文摘50 部 wt % TiC-C 电影在不锈钢底层 byusing 上被准备混合这些电影的离子横梁的一种技术被氢离子横梁与剂量of1X10^( 18 )照耀 ions/cm^2 和X光检查光电子的 5 keV.Microanalysis 的一个精力光谱学( XPS ) andsecondary 离子团光谱学( SIMS )过去常在氢 ionirradiation 前后分析这些电影并且学习氢抵抗的机制。 | Hui JIANG Yaoguang LIU Ningkang HUANG | 2007 | Journal of Materials Science & Technology2007，23，1： | 1 |
| 6 | Neutron transmutation doping effect on the optical property of germanium nanocrystals显示文摘 | Youwen Hu Tiecheng Lu Shaobo Dun Qiang Hu Caofeng You Qingyun Chen Ningkang Huang Lev Resnick Issai Shlimak Kai Sun Wen Xu | 2009 | Scripta Materialia2009，，10： | 1 |
| 7 | Effect of As doping on the photoluminescence of nanocrystalline 74 Ge embedded in SiO 2 matrix显示文摘 | Shaobo Dun Tiecheng Lu Youwen Hu Qiang Hu Liuqi Yu Zheng Li Ningkang Huang Songbao Zhang Bin Tang Junlong Dai Lev Resnick Issai Shlimak | 2008 | Journal of Luminescence2008，，8： | 1 |
| 8 | Preparation of arsenic-doped Ge nanocrystals embedded in SiO 2 film by ion implantation and thermal neutron irradiation显示文摘 | Shaobo Dun Tiecheng Lu Youwen Hu Qiang Hu Caofeng You Ningkang Huang | 2008 | Materials Letters2008，，21： | 1 |
| 9 | The Raman spectroscopy of neutron transmutation doping isotope 74 Germanium nanocrystals embedded in SiO 2 matrix显示文摘 | Youwen Hu Tiecheng Lu Shaobo Dun Qiang Hu Ningkang Huang Songbao Zhang Bin Tang Junlong Dai Lev Resnick Issai Shlimak Sha Zhu Qiangmin Wei Lumin Wang | 2006 | Solid State Communications2006，，9： | 1 |
| 10 | Electron spectroscopy studies on SiC films before and after hydrogen ion irradiation显示文摘 | Huang Ningkang Yang Bing Wang Dezhi | 2005 | Journal of Wuhan University of Technology - Mater Sci Ed2005，，2： | 1 |
| 11 | Investigation on lattice constants of Mg-A1 spinels显示文摘 | JING Shouyong LIN Li-bin HUANG Ningkang | | 0，，： | 1 |
| 12 | An Analytical Solution of the Potential Velocity Field Induced by a Growing Bubble from a Plate Orifice显示文摘An analytical solution is derived with the mirror image method of the velocity field of an inviscid liquid induced by a growing bubble from a plate orifice.The flow is assumed potential,and the bubble shape is idealised as sphercal.In deriving the motion equation,the spherical image of a point source,which is a combination of a point source and a line source,is proved approximate to a double source,This approximation enables continuation of the effectiveness of mirror image method to the case studied in this paper.The derived velocity potential equation is verified for the boundary conditions on the bubble surface and the orifice plate.The streamlines of the velocity field are presented and compared with experimental results in the literature. | ZhiTao NingKang | 1993 | Journal of Thermal Science1993，2，3： | 0 |
| 13 | Optical Properties of Nb^+ Ions Implanted Sapphire before and after Annealing显示文摘Sapphire crystals with different orientations may cone from implantation of Nb+ ions under different conditions andsuccedent annealing at reducing atmosphere. Optical analysis results show that the main optical absorption bands layin the higher energy side of the spectra in the samples. The absorption curves were evaluated by Gaussian fitting basedon the F-type centers, which were confirmed by luminescence measurements. The results of Gaussian fitting showthat there were F center, F+ center, F2 center, F2+ center and F2+2 center in the Nb+ ions implanted sapphire. Afterannealing at different temperature, all types of color centers decreased, and the higher the annealing temperature,the more the defects decreased. Sub-micrometer particles were observed by the scanning electron microscopy. | Xinlian WANG Jiarong LEI Dezhi WANG Ningkang HUANG | 2005 | Journal of Materials Science & Technology2005，21，6： | 0 |
| 14 | PdPtBi networked nanowires derived from Pd nanosheets as efficient catalysts for ethanol oxidation显示文摘Direct ethanol fuel cells(DEFCs)have received increasing attention as one of the most promising energy conversion devices.However,developing catalysts with high activity,long durability and strong anti-poisoning ability for ethanol oxidation is still challenging.Here,using Pd nanosheets as sacrificial templates,we have successfully synthesized PdPtBi networked nanowires(NWs)to improve the activity and stability for ethanol oxidation reaction(EOR)due to the addition of Bi.Density functional theory(DFT)calculations demonstrated the downshift of d-band center of Pd,which is beneficial to suppress CO poisoning and boost reaction kinetics for EOR.Impressively,the PdPtBi networked NWs exhibited the highest activity(11.08 A·mg_(Pd+Pt)^(-1)and 92.52 mA·cm^(-2))with an enhancement of 4.4 and 17.5 times relative to those of Pd/C,respectively and best stability with a 47.2%left versus only a 5.8%left for Pd/C of mass activity after 3,600 s towards EOR.This work deepens the understanding of controllable preparation of networked NWs and provides an effective strategy to design advanced catalysts with high activity and stability. | Ningkang Qian Liang Ji Junjie Li Hui Zhang Deren Yang | 2023 | Nano Research2023，16，7： | 0 |
| 15 | Phase changes of the ZrO_2-12 wt%Y_2O_3 film with Ar^+ irradiation显示文摘The zirconia containing 12wt%Y2O3 thin films deposited by r.f. magnetron sputtering at 25℃ or 400℃, and then bombarded with Ar+ beam at room temperature were characterized with XRD before and after Ar+ bombardment. It is found that a series of phases formation and transformation happened, among them the most important event is that T’ phase appeared after Ar+ irradiation and the content of the T’ phase increased with the increase of Ar+ ion doses from 5 ×1015 to 6×1016 ions cm-2. | WANG Dezhi ZHANG Hailong YANG Bin HUANG Ningkang (Institute of Nuclear Science and Technology Sichuan University, Chengdu 610064) | 1999 | Nuclear Science and Techniques1999，10，1： | 0 |
| 16 | Failure mechanism and control technology of deep soft-rock roadways:Numerical simulation and field study显示文摘Large deformations such as roof subsidence,floor heave,and two-sided deformations occur frequently in deep soft-rock roadways.The deformation becomes more severe under the combined effect of high in-situ and mining-induced stresses,which detrimentally affect the safe mining of coal.Based on the geological conditions and roadway failure characteristics of the Nanyaotou coal mine in Shanxi province,China,we used comprehensive numerical simulations and field observations to study roadway deformation and failure.The deformation mechanism of deep soft-rock roadways under dynamic pressures is described,and the corresponding control measures are proposed.The deformation and fracture development characteristics of roadways surrounding rocks were explored with a primary support scheme,and its effects were evaluated.The radius of the plastic zone and the displacement deformation of the roadway were studied by using theoretical analysis,and a combined-support design of‘‘anchor bolt+anchor cable+shotcrete+deep and shallow borehole grouting+inverted arch”was proposed to limit deformations and relieve the stress in the surrounding rocks.Numerical simulations and field monitoring showed that the combined support scheme can effectively mitigate the large deformations of ventilation roadways and provide guidance for the stable control of deep soft-rock roadways. | Ningkang Meng Jianbiao Bai Chungsik Yoo | 2023 | Underground Space2023，，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员