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Hot corrosion behaviors of 921A alloy and HVAF-sprayed Fe-based amorphous coating covered with KCl-ZnCl2 salts 期刊论文 OAI收割
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2023, 页码: 13
作者: Zhang, Hai-liang; Yang, Ling-xu; Wang, Qian; Wu, Jiang-tao; Zhang, Suo-de

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收藏 | 浏览/下载：4/0 | 提交时间：2024/01/07

Hot corrosion Chloride deposit 921A alloy Fe-based amorphous coating Waste-to-energy plant

烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系 期刊论文 OAI收割
海洋科学, 2018, 卷号: 42, 期号: 8, 页码: 90-97
作者: 姜明; 赵国强; 李兆冉; 盛彦清

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收藏 | 浏览/下载：26/0 | 提交时间：2020/07/08

还原性无机硫活性铁深层柱状沉积物硫化度矿化度 Reduced inorganic sulfur Reactive iron Deep core sediments Degree of pyritization Degree of sulfidity The distribution characteristics and coupling mechanism of reduced inorganic sulfur (RIS)and reactive iron in marine core sediments are closely related to the evolution of environment quality.In this study,an improved cold diffusion method and hydrochloric acid extraction method were applied to the acid-volatile sulfur (AVS),pyrite sulfur (CRS),elemental sulfur (ES),and reactive iron [Fe (Ⅱ)and Fe (III)] analyses.The distribution characteristics and coupling mechanism of S and Fe were investigated based on a core sediment 4 meters deep collected in the northern sea area of the mouth of Jiahe River,Yantai.The results showed that the RIS in sediments was dominated by CRS,followed by AVS and ES.The content of AVS presented a narrow range with depth,whereas the CRS and ES were higher at the top and bottom layers than the middle layer reactive iron was dominated by Fe (II),which increased with depth,while Fe (Ⅲ)gradually decreased with depth.Most of the Fe (III)was reduced to the disssolved Fe(II),which was combined with the soluble H_2S of the sulfate-reducing bacteria to produce CRS and ES in the deep layer,resulting in their accumulation at the bottom of core sediments.Furthermore,this study showed that reactive iron was not a limiting factor for the accumulation of RIS with lower degree of pyritization and degree of sulfidity.

Hydrothermal synthesis of nanocrystalline H[Fe, Al]ZSM-5 zeolites for conversion of methanol to gasoline 期刊论文 OAI收割
ENERGY CONVERSION AND MANAGEMENT, 2015, 卷号: 93, 页码: 259-266
作者: Li, Jianqing; Miao, Pengjie; Li, Zhuo; He, Tao; Han, Dezhi

收藏 | 浏览/下载：19/0 | 提交时间：2015/11/02

Hydrothermal synthesis Nanocrystalline H[Fe Methanol to gasoline (MTG) Al]ZSM-5

Finite element model and analysis for micro-cutting of aluminum alloy 7050-T7451 (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Machine Design and Manufacturing Engineering, ICMDME 2012, May 11, 2012 - May 12, 2012, Jeju Island, Korea, Republic of
作者: Zhou J.; Wang F.; Wang F.

收藏 | 浏览/下载：20/0 | 提交时间：2013/03/25

In this paper a finite element model with respect to actual state of micro-cutting is established by adopting software of ABAQUS/Explicit. Based on the FE model the cutting force and specific cutting force with various uncut depth of cut with different cutting edge radius are compared and then analyzed with regard to this simulation. In micro-cutting the nonlinear scaling phenomenon is more evident with the decreasing of uncut chip thickness. The likely explanations for the size effect in small uncut chip thickness are discussed in this paper. (2012) Trans Tech Publications Switzerland.

Experiments and finite element simulations on micro-milling of aluminium alloy7050-T7451 (EI CONFERENCE) 会议论文 OAI收割
10th Asia-Pacific Conference on Materials Processing, APCMP 2012, June 14, 2012 - June 17, 2012, Jinan, China
作者: Li J.; Li J.; Li J.; Zhou J.; Wang F.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

The mechanism of micro-milling modeling for aluminum alloy 7050-T745 is to be investigated and a finite element model for micro-milling that reflects the actual state of the three-dimensional micro-milling is built by adopting the software of ABAQUS/Explicit. Experiment is conducted to verify the validation of the model. Simulated chip morphology in different cutting parameters agrees to the experimental results very well. Based on the FE model cutting stresses equivalent plastic strains temperatures distribution and cutting forces are obtained and analyzed. This provides a good method to investigate the micro milling principles. (2012) Trans Tech Publications.

Fractional crystallization and the formation of thick Fe-Ti-V oxide layers in the Baima layered intrusion, SW China 期刊论文 OAI收割
Ore Geology Reviews, 2012, 卷号: 49, 期号: 1, 页码: 96-108
Xiao-Qi Zhang; Xie-Yan Song; Lie-Meng Chen; Wei Xie; Song-Yue Yu; Wen-Qin Zheng; Yu-Feng Deng; Jia-Fei Zhang; Shu-Guang Gui

收藏 | 浏览/下载：35/0 | 提交时间：2015/05/07

Emeishan Large Igneous Province Baima layered intrusion Fe–Ti oxide Closed to oxygen system Magma replenishment MELTS

X-ray detectors based on Fe doped GaN photoconductors 期刊论文 OAI收割
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2011, 卷号: 5, 期号: 5-6, 页码: 187-189
作者: Fu, K (付凯)

收藏 | 浏览/下载：15/0 | 提交时间：2012/07/23

X-ray detectors Fe doping GaN transient performance signal to noise ratio

Pre-process technique study of a high performance remote image sensor structural Finite Element Analysis (EI CONFERENCE) 会议论文 OAI收割
2010 2nd International Conference on Computer Engineering and Technology, ICCET 2010, April 16, 2010 - April 18, 2010, Chengdu, China
作者: Zhang L.; Xu Y.-S.; Zhang L.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

High precision structural Finite Element Analysis (FEA) results are required in the development of a remote image sensor. HperMesh and MSC. Nastran are employed in the image sensor structural FEA. This paper discusses some technical issues about the Finite Element (FE) modeling of the image sensor. In order to obtain authentic analysis results the part-to-whole handling schema i.e. handling method and research work is implemented in a small part of the model firstly and a revised method is used in the whole structural in succession has been proposed. Some emphasis is mainly put on the FE handling of bolted joint bearing and inter-element connection. The interface handling methods such as CBEAM plus partial MPC bolted joint model hybrid element bearing model and RBE3 beam-to-solid connection have been produced and successfully implemented in the image sensor structural FEA. 2010 IEEE.

Crystal structure and magnetic properties of Nd(Mn(1-x)Fe(x))(2)Si(2) compounds 期刊论文 OAI收割
Chinese Physics B, 2009, 卷号: 18, 期号: 11, 页码: 4944-4948
Y. Q. Chen; J. Luo; J. K. Liang; J. B. Li; G. H. Rao

收藏 | 浏览/下载：17/0 | 提交时间：2012/04/13

Nd(Fe(x)Mn(1-x))(2)Si(2) crystal structure magnetic properties resistivity neutron-diffraction rmn2ge2 compounds solid-solution silicides 0-less-than-or-equal-to-x-less-than-or-equal-to-1 behavior ndfe2si2

Excitonic properties of vertically aligned ZnO nanotubes under high-density excitation (EI CONFERENCE) 会议论文 OAI收割
Lu Y. M.; Liang H. W.; Shen D. Z.; Zhang Z. Z.; Zhang J. Y.; Zhao D. X.; Liu Y. C.; Fan X. W.

收藏 | 浏览/下载：13/0 | 提交时间：2013/03/25

In this paper highly oriented and vertically arranged ZnO nanotubes are prepared on Al2O3 (0 0 0 1) substrate without employing any metal catalysts by plasma-assisted molecular beam epitaxy. The photoluminescence (PL) spectra at room temperature are studied under high excitation densities. Under lower excitation density (60 kW/cm2) PL spectrum shows that one strong free exciton emission (FE) locates at 3.306 eV. As the excitation density increases up to 200 kW/cm2 a new emission peak (Pn) located at low-energy side of FE is attributed to the spontaneous emission due to an exciton-exciton (Ex-E x) scattering process from two ground state excitons where one exciton is recombined by emitting a photon and the other is scattered into the excited states of n=2 3 4.... Under excitation density of 300 kW/cm 2 the stimulated emission originating from Ex-E x scattering is obtained. When the excitation density is above 580 kW/cm2 the emission from electron-hole plasma is observed in low-energy side of the P band and indicates a typical superradiation recombination processes with increasing excitation density. 2006 Elsevier B.V. All rights reserved.