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Online since: September 2013
Authors: Ying Hui Zhang, Bin Yang, Jin Wang, Ke Jiang
Hot Deformation Behavior of Cu-Ag alloy
for Cu Cladding Al Contact Wire
Yinghui Zhang1, a,Jin Wang1, b,Ke Jiang1, c,Bin Yang1, d
1School of Material and Chemistry Engineering,
Jiangxi University of Science and Technology, Ganzhou, Jiangxi, 341000, China
azyh0727@sohu.com, b804817837@qq.com , clily.jkjjtu@126.com ,dYangbin65@126.com
Keywords: Cu-Ag alloy, hot compressing, hot deformation activation energy, flow stress
Abstract.
According to the similarity of material thermal deformation and creep process, equation (1) is the modified Arrhenius relationship that contained the hot deformation activation energy Q to describe the relationship of the steady-state flow stress σ between deformation temperature T and strain rate during thermal deformation [7] (1) In eq. (1), A is structure factor (s-1), n is stress index, α is stress level parameter (mm2, N-1), Q is the hot deformation activation energy(J/mol), R is the gas constant, T is temperature (K).
According to the similarity of material thermal deformation and creep process, equation (1) is the modified Arrhenius relationship that contained the hot deformation activation energy Q to describe the relationship of the steady-state flow stress σ between deformation temperature T and strain rate during thermal deformation [7] (1) In eq. (1), A is structure factor (s-1), n is stress index, α is stress level parameter (mm2, N-1), Q is the hot deformation activation energy(J/mol), R is the gas constant, T is temperature (K).
Online since: December 2014
Authors: Le Le Ma, Hong Yan Xu, Gang Liu, Qing Zhang
Synthesis and Application of 1-[2-methyl-5-(4-hydroxymethylphenyl)-3-thienyl]-2-[2-methyl-5-(4-azidomethylphenyl)-3-thienyl]perfluorocyclopentene
Lele Ma, Hongyan Xu, Qing Zhang* and Gang Liu
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University,
Nanchang 330013, P.
The structure of compound 1o was confirmed by 1H NMR.
The structure of compound 1o was confirmed by 1H NMR.
Online since: January 2017
Authors: Hua Yan, Jian Jian Yang, Jun Jun Guo, Jun Dai
Evaluation of the Aging Behavior of High Density
Polyethylene in Thermal-Oxidative Environment
by Principal Component Analysis
Jun Daia, Hua Yanb, Jian-jian Yangc and Jun-jun Guod
Department of Chemistry and Material, Logistic Engineering University,
Chongqing, 401331, People’s Republic of China
adaijunhg@126.com, byanhuacq@sina.com, cyangjianjiancq@163.com, dgu7yu@126.com
Keywords: Polymer, High density polyethylene (HDPE), Principal component analysis (PCA), Thermal oxidation
Abstract.
In our previous paper [8], the mechanical properties, appearance, chemical structure of HDPE after weathering aging were monitored.
In our previous paper [8], the mechanical properties, appearance, chemical structure of HDPE after weathering aging were monitored.
Online since: May 2007
Authors: Ho Kun Kim, Jin Koo Park, Jong Kil Kim
Recovery of Silica and Sodium Fluoride from
Hexafluorosilicic Acid and Sodium Silicate
Jong-Kil Kim
1,a, Jin-Koo Park2,b and Ho-Kun Kim
1,c
1
Dept. of Applied Chemistry, Hanyang University, Ansan, 425-791, Korea
2
Korea Institute of Limestone & Advanced Materials, Danyang 395-903, Korea
a
k3289@hanyang.ac.kr, bsky3013@hanmail.net,
chkkim@hanyang.ac.kr
Keywords: Sol-gel process; nanoporous silica; hexafluorosilicic acid, sodium silicate
Abstract.
To get purer silica and NaF, the concentration ratios of the initial compounds were controlled, and then investigated the physical(surface and pore structures) properties of the obtained silica.
To get purer silica and NaF, the concentration ratios of the initial compounds were controlled, and then investigated the physical(surface and pore structures) properties of the obtained silica.
Online since: January 2005
Authors: Chun Hong Li, Feng Bing Song, Qiang Li
Comparative study on microstructure of Pb(Mg1/3Nb2/3)O3-PbTiO3
ceramics
Chunhong Li, Qiang Li1, a, Fengbing Song
1
Department of Chemistry, Tsinghua University, Beijing 100084, China
a
qiangli@mail.tsinghua.edu.cn
Keywords: Pb(Mg1/3Nb2/3)O3- PbTiO3 ; Microstructure ; Pervoskite
Abstract. (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 ((1-x)PMN-xPT, PMN-PT) with composition near the
morphotropic phase boundary (MPB) were prepared by the columbite precursor method and the
rutile precursor method respectively.
At room temperature, a X-ray diffractometer (Ka, Cu) was used to characterize the phase structures of sintered ceramics.
At room temperature, a X-ray diffractometer (Ka, Cu) was used to characterize the phase structures of sintered ceramics.
Online since: May 2015
Authors: Mária Hagarová, Zuzana Fečková, Jana Cervová, Petra Lacková
Some Possibilities of Evaluation of Corrosive Resistance of Metal and Non-Metal Coatings
HAGAROVÁ Mária1,a*, FEČKOVÁ Zuzana2,b, LACKOVÁ Petra1,c and CERVOVÁ Jana1,d
1Technical University of Košice, Faculty of Metallurgy, Department of Materials Science, Park Komenského 11, 042 00 Košice, Slovakia
2Technical University of Košice, Faculty of Metallurgy, Department of Chemistry, Letná 9, 042 00 Košice, Slovakia
amaria.hagarova@tuke.sk, bzuzana.feckova@tuke.sk, cpatra.lackova@tuke.sk, djana.cervova@tuke.sk
Keywords: thin coating, corrosion, properties.
Savková, Structure and properties of PVD coatings deposited by ARC and LARC technology, Acta Metall.
Savková, Structure and properties of PVD coatings deposited by ARC and LARC technology, Acta Metall.
Online since: December 2014
Authors: Ren Jie Wang, Ya Ming Xue, Shou Zhi Pu
Synthesis and Application of 1-[2-methyl-3-benzofuran]-2-[2-methyl-5-(4-pentylphenyl)-3-thienyl] perfluorocyclopentene
Yaming Xue, Renjie Wang* and Shouzhi Pu
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University,
Nanchang 330013, P.
The structure of diarylethene 1o was confirmed by 1H NMR . 1H NMR (400 MHz, CDCl3, ppm): δ 0.90 (s, 3H, J = 8.0 Hz, -CH3), 1.33-1.35 (m, 4H, J = 8.0 Hz, -CH2), 1.61-1.64 (m, 2H, J = 8.0 Hz, -CH2), 2.01 (s, 6H, J = 8.0 Hz, -CH3), 2.58-2.63 (m, 2H, J = 8.0 Hz, -CH2), 7.19 (s, 1H, J = 8.0 Hz, thiophene-H), 7.21 (d, 2H, J = 8.0 Hz, benzene-H), 7.32-7.34 (d, 2H, J = 8.0 Hz, benzene-H). 7.44 (t, 2H, J = 8.0 Hz, benzene-H), 7.53-7.56 (t, 2H, J = 8.0 Hz, benzene-H).
The structure of diarylethene 1o was confirmed by 1H NMR . 1H NMR (400 MHz, CDCl3, ppm): δ 0.90 (s, 3H, J = 8.0 Hz, -CH3), 1.33-1.35 (m, 4H, J = 8.0 Hz, -CH2), 1.61-1.64 (m, 2H, J = 8.0 Hz, -CH2), 2.01 (s, 6H, J = 8.0 Hz, -CH3), 2.58-2.63 (m, 2H, J = 8.0 Hz, -CH2), 7.19 (s, 1H, J = 8.0 Hz, thiophene-H), 7.21 (d, 2H, J = 8.0 Hz, benzene-H), 7.32-7.34 (d, 2H, J = 8.0 Hz, benzene-H). 7.44 (t, 2H, J = 8.0 Hz, benzene-H), 7.53-7.56 (t, 2H, J = 8.0 Hz, benzene-H).
Online since: July 2012
Authors: Jing Li Xu, Li Liang, Jun Wang, Yian Xu, Li Xin Luo
Removal of COD from heavy oil wastewater by activated carbon
Jingli Xu1a,2,3 Yian Xu1 Li Liang1 Jun Wang1 Lixin Luo1
1 Survey, Design & Research Institute of Henan Petroleum Exploration Bureau of China Petrochemical Corporation, Nanyang,
2Dept. of chemistry and chemical engineering, XuChang University, XuChang, China
3 China University of Petroleum, Shandong, China
axujingli1971@hotmail.com
Keywords: heavy oil wastewater, activated carbon, adsorption, removal of COD
Abstract.
This kind of structure that carbon powder owned made it have much greater specific surface than granulate carbon and stronger adsorption ability for organic compounds.
This kind of structure that carbon powder owned made it have much greater specific surface than granulate carbon and stronger adsorption ability for organic compounds.