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Online since: July 2005
Authors: Hong Liang Zhao, Chun Xiang Zhang, Shaokang Guan
Effects of silicon and AlP on microstructure and properties of
Mg-8Zn-4Al-0.3Mn alloy
ZHANG Chun-xiang
1, a
, GUAN Shao-kang1
,b
, ZHAO Hong-liang
1,c
(
1,1,1
School of Materials Science & Engineering, Zhengzhou University, Zhengzhou 450002,China)
a
zhangcx@ zzu.edu.cn, bskguan@zzu.edu.cn, zhlwkr@zzu.edu.cn
Keywords: Mg-Zn-Al alloy; microstructure; AlP modify; the selection of phase
Abstract: The effects of silicon and AlP on microstructure and properties of Mg-8Zn-4Al-0.3Mn
alloy were studied.
The alloys were prepared by using the following materials: commercial pure Mg, Al and Zn(>99.9%), Al-50%Si, Al-6%AlP and Al-20%Mn master Alloy.
The Chinese Journal of Nonferrous Metals, 2003,13(3):616-621
[2] G.H.QI and X.F.LIU.Materials Science and Technology, 2001,9(2):211~214
The alloys were prepared by using the following materials: commercial pure Mg, Al and Zn(>99.9%), Al-50%Si, Al-6%AlP and Al-20%Mn master Alloy.
The Chinese Journal of Nonferrous Metals, 2003,13(3):616-621
[2] G.H.QI and X.F.LIU.Materials Science and Technology, 2001,9(2):211~214
Online since: January 2013
Authors: Anders Hallén, Sethu Saveda Suvanam, M. Usman, K. Gulbinas, V. Grivickas
The dielectric material and its interface to SiC need to be improved, both to achieve better gate oxide for SiC MOSFETs and also for improving surface passivation for device areas exposed to high electric fields.
We have furthermore developed an analytical tool using Matlab [6] that can extract SRV at the interface from the optical data using the diffusion equation and boundary condition as shown in Eq. 3 and 4: On left edge: D*(dn/dx) = S1*n(1) (2) On right edge: D*(dn/dx) = -S2*n(2) (3) where the n is the carriers concentration, D is the diffusion co-efficient of the material, x is the thickness of the epi-layer, S1 is surface velocity at epi-layer/substrate interface, S2 is surface velocity at the oxide/epi-layer interface, n(1) is the carrier concentration at left edge, n(2) is the carrier concentration at right edge.
Grivickas, Materials Science Forum, Vol. 717-720, pp 805-808, 2012
Hallén, Materials Science (MEDŽIAGOTYRA), Vol. 17, no. 2, p. 119-124, 2011 [6] [Online]. http://www.mathworks.se/products/matlab/index.html [7] [Online].
Bleichner, J.Hallin, Journal of Applied Physics, 8, pp. 3522 – 3525, 1997
We have furthermore developed an analytical tool using Matlab [6] that can extract SRV at the interface from the optical data using the diffusion equation and boundary condition as shown in Eq. 3 and 4: On left edge: D*(dn/dx) = S1*n(1) (2) On right edge: D*(dn/dx) = -S2*n(2) (3) where the n is the carriers concentration, D is the diffusion co-efficient of the material, x is the thickness of the epi-layer, S1 is surface velocity at epi-layer/substrate interface, S2 is surface velocity at the oxide/epi-layer interface, n(1) is the carrier concentration at left edge, n(2) is the carrier concentration at right edge.
Grivickas, Materials Science Forum, Vol. 717-720, pp 805-808, 2012
Hallén, Materials Science (MEDŽIAGOTYRA), Vol. 17, no. 2, p. 119-124, 2011 [6] [Online]. http://www.mathworks.se/products/matlab/index.html [7] [Online].
Bleichner, J.Hallin, Journal of Applied Physics, 8, pp. 3522 – 3525, 1997
Online since: November 2012
Authors: Xiao Long Tong, Fang Chen
This formula is a regulation made on the basis of the stability of the sheet and the consideration of the elastic-plasticity of the concrete material, the chronicity of load and loading eccentricity.
But the resistance force in formula (1) has no relation with the intensity of the material and can not present the partial coefficient of the material.
In document [4], the shear wall critical load resistance has nothing to do with the strength of the materials, and current modes do not provide its resistance partial coefficient index neither.
Changchun: Jilin Science and Technology Press, 2005.
[8] Lixin Sha, Xue-fei Shi: submitted to Journal of Harbin Institute of Technology (2004)
But the resistance force in formula (1) has no relation with the intensity of the material and can not present the partial coefficient of the material.
In document [4], the shear wall critical load resistance has nothing to do with the strength of the materials, and current modes do not provide its resistance partial coefficient index neither.
Changchun: Jilin Science and Technology Press, 2005.
[8] Lixin Sha, Xue-fei Shi: submitted to Journal of Harbin Institute of Technology (2004)
Online since: March 2011
Authors: Jian Qiang Zhang, Hui Xia Feng, He Ming Luo, Xia Zhao
Experimental set-up
The experiment materials.
Acknowledgements This work was financially supported by National Natural Science Regional Funds Project(51063003), Provincial Natural Science Program (0916RJZA011) and Education Department Research Project(0803-04), Excellent Young Teachers in Lanzhou University of Technology Training Project (1005ZCX016).
Gupta, Alok Mittal, Dipika Kaur Arti Malviya and Jyoti Mittal, Adsorption Studies on the Removal of Colouring Agent Phenol Red from Wastewater Using Waste Materials as Adsorbents, J.
Gupta, Alok Mittal, Arti Malviya and Jyoti Mittal, Adsorption of Carmoisine A from Wastewater Using Waste Materials – Bottom Ash and De-Oiled Soya, J.
Vol.355 (2009), p.24-33 [10]Q.Zhou and J.Xiao, Removal of Nanometer Particles in Micropolluted Water Source by Coagulation with Polysilicate-Alumium, Journal of South China University Technology.
Acknowledgements This work was financially supported by National Natural Science Regional Funds Project(51063003), Provincial Natural Science Program (0916RJZA011) and Education Department Research Project(0803-04), Excellent Young Teachers in Lanzhou University of Technology Training Project (1005ZCX016).
Gupta, Alok Mittal, Dipika Kaur Arti Malviya and Jyoti Mittal, Adsorption Studies on the Removal of Colouring Agent Phenol Red from Wastewater Using Waste Materials as Adsorbents, J.
Gupta, Alok Mittal, Arti Malviya and Jyoti Mittal, Adsorption of Carmoisine A from Wastewater Using Waste Materials – Bottom Ash and De-Oiled Soya, J.
Vol.355 (2009), p.24-33 [10]Q.Zhou and J.Xiao, Removal of Nanometer Particles in Micropolluted Water Source by Coagulation with Polysilicate-Alumium, Journal of South China University Technology.
Online since: January 2006
Authors: Tadashi Takenaka, Naoki Ohashi, Hajime Haneda, Isao Sakaguchi, Takeshi Ohgaki, Yoshitaka Adachi, Haruki Ryoken
Haneda
1,2
1
National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
2
Kyushu University, 6-1 Kasuga-kouen, Kasuga, Fukuoka, 816-8580, Japan
3Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-0022, Japan
Keywords: zinc oxide, pulsed laser deposition (PLD), secondary ion mass spectroscopy (SIMS), impurity
ABSTRACT
The defect structure of undoped and Al-doped ZnO films deposited by pulse laser deposition
was investigated to understand the charge compensation mechanism in those films.
Komatsu et al.: Key Engineering Materials, 181-182 (2000) 101-104
Chacka: Journal of Solid State Chemistry, 15 (1975) 261-270
Ohgaki et al., Key Engineering Materials, 248 (2003) 91-94 [9] H.
Komatsu et al.: Key Engineering Materials, 181-182 (2000) 101-104
Chacka: Journal of Solid State Chemistry, 15 (1975) 261-270
Ohgaki et al., Key Engineering Materials, 248 (2003) 91-94 [9] H.
Online since: July 2011
Authors: Yi Hua Hu, Wei Jian Huang, Xi Fen Liu
The technology of sheet metal forming simulation was a product of cooperation between sheet metal forming theory and materials mechanics, computational mathematics, computational mechanics, stamping technology and computer science[1].
The characteristic of the auto panel was that material was DC56, thickness was 1.5mm, shape was irregular and quite obvious surface.
Designers could determine material flow trend through observing the moment of the state in drawing process.
“Sheet metal forming simulation in industry”.Journal of Materials Processing Technology,1996,No.60 (1-4),pp.19-26
“The research and application on sheet metal forming simulation of automobile panel”.Automobile Science and Technology. 2002,No.1, pp.36-38
The characteristic of the auto panel was that material was DC56, thickness was 1.5mm, shape was irregular and quite obvious surface.
Designers could determine material flow trend through observing the moment of the state in drawing process.
“Sheet metal forming simulation in industry”.Journal of Materials Processing Technology,1996,No.60 (1-4),pp.19-26
“The research and application on sheet metal forming simulation of automobile panel”.Automobile Science and Technology. 2002,No.1, pp.36-38
Online since: October 2010
Authors: Hua Tan, Chun Hua Zhou, Yi Qiang Tu, Ting Xu, Bin Cai, Ye Fa Tan
So this microstructure is beneficial for SiC abrasives to be brought into full play in
anti-wear performance and high efficient grinding ability to counterpart materials.
The optimum cathodal electric-current density to prepare Ni-Co/SiC coatings is 1 A/dm2 and the proper SiC abrasive size in the composite coatings is 20µm, in which the Ni-Co/SiC coatings have reasonable microstructure and small wear rates as well as good grinding efficiency to counterpart materials.
Huang, et al: Materials for Mechanical Engineering, Vol.32 (2008), p. 54-57 (In Chinese) [4] N.R.
Deepthi: Applied Surface Science, Vol. 253 (2006), p. 2189-2195 [8] A.B.
Podlaha: Journal of Applied Electrochemistry, Vol. 31 (2001), p. 461-468 [9] B.
The optimum cathodal electric-current density to prepare Ni-Co/SiC coatings is 1 A/dm2 and the proper SiC abrasive size in the composite coatings is 20µm, in which the Ni-Co/SiC coatings have reasonable microstructure and small wear rates as well as good grinding efficiency to counterpart materials.
Huang, et al: Materials for Mechanical Engineering, Vol.32 (2008), p. 54-57 (In Chinese) [4] N.R.
Deepthi: Applied Surface Science, Vol. 253 (2006), p. 2189-2195 [8] A.B.
Podlaha: Journal of Applied Electrochemistry, Vol. 31 (2001), p. 461-468 [9] B.
Online since: September 2013
Authors: Jian Qiu Deng, Qing Rong Yao, Jiang Wang, Zhong Min Wang, Huai Gang Zhang, Huai Ying Zhou, Feng Wang
Effect of annealing treatment on structure and electrochemical properties of LaNi4.5Co0.25Al0.25 alloy with low Co content
Feng Wang1,a, Huaiying Zhou1,b, Jiang Wang 1,c ,Zhongmin Wang1,d ,
Huaigang Zhang1,e,Jianqiu Deng1,f and Qingrong Yao1,g
1School of Materials Science & Engineering, Guilin University of Electronic Technology, No.1,
Jinji Road, Guilin 541004, China
aMengxiang31415@163.com, bzhy@guet.edu.cn, cwaj124@guet.edu.cn, dzmwang@guet.edu.cn, ezhg@guet.edu.cn, fedsroffic@guet.edu.cn, gfqingry96@guet.edu.cn
Keywords: Hydrogen storage alloy, Low Co content, Annealing treatment, Electrochemical properties, Cyclic stability
Abstract.
Rare earth-based AB5 type and the Ti/Zr-based AB2 type alloys have been widely used successfully as Ni/MH secondary cell negative materials because of its wide working temperature(243 K-313 K) [2,3] and high retention capacity after charging/discharging many cycles [4-6].
was better than as-cast alloy at other temperatures.According to the typical AB5-type alloy MmNi3.5Co0.75Mn0.4Al0.3, Co content takes up about 40–50 % share of the total cost of the raw materials, resulting in industrial application.
Acknowledgment This work is supported by “Guangxi Experiment Center of Information Science,Guilin University of Electronic Technology.
[15] S.Q Shi, C.Y Ouyang, M.S Lei: Journal of Power Sources, Vol. 164(2007), p.911
Rare earth-based AB5 type and the Ti/Zr-based AB2 type alloys have been widely used successfully as Ni/MH secondary cell negative materials because of its wide working temperature(243 K-313 K) [2,3] and high retention capacity after charging/discharging many cycles [4-6].
was better than as-cast alloy at other temperatures.According to the typical AB5-type alloy MmNi3.5Co0.75Mn0.4Al0.3, Co content takes up about 40–50 % share of the total cost of the raw materials, resulting in industrial application.
Acknowledgment This work is supported by “Guangxi Experiment Center of Information Science,Guilin University of Electronic Technology.
[15] S.Q Shi, C.Y Ouyang, M.S Lei: Journal of Power Sources, Vol. 164(2007), p.911
Online since: May 2014
Authors: Xin Ma, Ming Yu Li, Ming Yang
However, it is well recognized in certain electronic products, specifically servers, storage and storage array systems, network infrastructure equipment and network management for telecommunication equipment referred to as high-performance electronic products, where perform tasks so important to modern society that their operational integrity had to be maintained, the introduction of new and unproven materials would pose a significant potential reliability risk [1-3].
Acknowledgement This work was supported by National Nature Science Foundation of China under Grant No. 51175116, and Shenzhen Special Funds for Development of Strategic Emerging Industries (No.
Tu, Solder Joint Technology Materials, Properties and Reliability, seconded., Springer, New York, 2007
Journal of Applied Physics, 106 (2009) 113512
Science Press, Beijing, 1990
Acknowledgement This work was supported by National Nature Science Foundation of China under Grant No. 51175116, and Shenzhen Special Funds for Development of Strategic Emerging Industries (No.
Tu, Solder Joint Technology Materials, Properties and Reliability, seconded., Springer, New York, 2007
Journal of Applied Physics, 106 (2009) 113512
Science Press, Beijing, 1990
Online since: July 2014
Authors: Yue Jiao Zhao, Wen Hui Liu, Jing Yi Du, Juan Han
All above studies always analyzed and judged corrosion rate from the perspective of a single grounding material.
But corrosion is a complex and random phenomenon caused by a joint function of material and environment that is a synthesis results of electrochemical and chemical effects of grounding materials in soil environment.
In addition to the impact of the material itself, more conditions are affected by soil properties, geographical location, climatic conditions, and other factors [4].
Environmental Science & Technology,2005,39(8):2442-2447
Journal of minjiang university, 2012,33(5):21-25.
But corrosion is a complex and random phenomenon caused by a joint function of material and environment that is a synthesis results of electrochemical and chemical effects of grounding materials in soil environment.
In addition to the impact of the material itself, more conditions are affected by soil properties, geographical location, climatic conditions, and other factors [4].
Environmental Science & Technology,2005,39(8):2442-2447
Journal of minjiang university, 2012,33(5):21-25.