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Online since: October 2013
Authors: Hua Sun, Li Ming Feng, Xiao Fei Guo, Hong Fang Ma
Effect of Ce Co-deposition on Phase Structure and Thermal Stability
of Ni-Cu-P Alloy
SUN Hua1, aMA Hongfang1, b, FENG Liming1, c , GUO Xiaofei1,d
1School of Materials Science and Engineering, Shandong Jianzhu University.
Jinan 250101,China asunhua1018@163.com,bmerryhf@163.com, cflm@sdjzu.edu.cn , dguoxiaofei@sdjzu.edu.cn Key words:Co-deposition, microcrystal structure, thermodynamic stability, electroless plating Abstract: Two nickel base multicomponent Ni-Cu-P, Ni-Cu-P-Ce alloy coatings were prepared using electroless plating method in low acidity condition, and examined by scanning electronic microscope, x-ray diffractometer and x-ray flourometer respectively on its morphology, component and structure characteristic.
Research revealed a microcrystalline characteristic with compact and tight surficial cellular structure of Ni-Cu-P-Ce coating.
The structure of the alloy coatings were analyzed by D8Advance X - ray diffraction .
References [1] SHAN Chuan-Li, HUANG Xin-Min, WUYu-Cheng, ZHANG Zhi-Ming, LIN Zhi-Pin:chinese journal of applied chemistry.25(2008),p.1161
Jinan 250101,China asunhua1018@163.com,bmerryhf@163.com, cflm@sdjzu.edu.cn , dguoxiaofei@sdjzu.edu.cn Key words:Co-deposition, microcrystal structure, thermodynamic stability, electroless plating Abstract: Two nickel base multicomponent Ni-Cu-P, Ni-Cu-P-Ce alloy coatings were prepared using electroless plating method in low acidity condition, and examined by scanning electronic microscope, x-ray diffractometer and x-ray flourometer respectively on its morphology, component and structure characteristic.
Research revealed a microcrystalline characteristic with compact and tight surficial cellular structure of Ni-Cu-P-Ce coating.
The structure of the alloy coatings were analyzed by D8Advance X - ray diffraction .
References [1] SHAN Chuan-Li, HUANG Xin-Min, WUYu-Cheng, ZHANG Zhi-Ming, LIN Zhi-Pin:chinese journal of applied chemistry.25(2008),p.1161
Online since: December 2013
Authors: Rui Yuan Wang, Xiao Dong Chen, Qun Jie Xu
., 3078 Humin Road, Minhang Distinct, Shanghai, 201109, China
awangruiyuan.2009@163.com, bCXD1969@shsunny.com, cxuqunjie@shiep.edu.cn
Keywords: polybutylene terephthalate, modification, chemistry, physics.
After that, the world famous manufacturers from Germany ( BASF, Bayer), Japan (Toray, Mitsubishi Chemistry), China (Changchun Synthetic Resin), Canada (South Asia Plastic) and other companies have been put into production.
In view of the similar structure of PBT and PET , the extender chain of carboxyl and hydroxy group addition will be an effective way.
The chemical structure of PBT is similar to that of PET, and their melting point differs only 30oC, the compatibility of them was quite well.
As chemical structures of PC and PBT are similar, which they all contain benzene ring and ester group in the main chain.
After that, the world famous manufacturers from Germany ( BASF, Bayer), Japan (Toray, Mitsubishi Chemistry), China (Changchun Synthetic Resin), Canada (South Asia Plastic) and other companies have been put into production.
In view of the similar structure of PBT and PET , the extender chain of carboxyl and hydroxy group addition will be an effective way.
The chemical structure of PBT is similar to that of PET, and their melting point differs only 30oC, the compatibility of them was quite well.
As chemical structures of PC and PBT are similar, which they all contain benzene ring and ester group in the main chain.
Online since: July 2013
Authors: David D. Rodrigues, Patricia H. Winfield, Denise Morrey
Currently, disassembly of adhesive bonded structures is conducted ineffectively by mechanical force, heat, and solvent or acid immersion.
Various thermo-reversible crosslinking adhesives using dissociation mechanisms were developed, such as, polymer structures with isocyanate-labile hydrogen bonds or divinyl ether and ester groups, elastomer with acid anhydride and hydroxyl reactive groups, diamine cured low modulus EP adhesive containing Diels-Alder adducts, and a hard layered polymer structure comprising branched long carbon backbone polymers with hydrogen or fluorine atoms [2].
Dissociation temperatures depend on the polymer chemistry but can be tailored by modifying the ratio and molecular structure of formula components.
This mechanism was found to be dependent on the applied voltage and exposure time, temperature, moisture content and pH of the bondline, and surface chemistry, morphology and electrical conductivity of the substrate.
McCurdy, Disassembly Methods for Automotive Structures, PhD Thesis, Oxford Brookes University (2011)
Various thermo-reversible crosslinking adhesives using dissociation mechanisms were developed, such as, polymer structures with isocyanate-labile hydrogen bonds or divinyl ether and ester groups, elastomer with acid anhydride and hydroxyl reactive groups, diamine cured low modulus EP adhesive containing Diels-Alder adducts, and a hard layered polymer structure comprising branched long carbon backbone polymers with hydrogen or fluorine atoms [2].
Dissociation temperatures depend on the polymer chemistry but can be tailored by modifying the ratio and molecular structure of formula components.
This mechanism was found to be dependent on the applied voltage and exposure time, temperature, moisture content and pH of the bondline, and surface chemistry, morphology and electrical conductivity of the substrate.
McCurdy, Disassembly Methods for Automotive Structures, PhD Thesis, Oxford Brookes University (2011)
Online since: May 2013
Authors: Yan Liang Du, Yan Jun Hu
In this paper, the effect of pore structure on the chloride ions ingress into concrete was investigated.
Introduction The effect of pore structure on the chloride ions ingress into concrete is quite complex.
Some investigations have been made to estimate the influence of pore structure on concrete permeability [1-4].
Whereas another method, the evaporative water method (EWM) can measure the total porosity include the boundary pore structure but can not get the detail pore structure distribution.
Material Chemistry and physics, 100(2006) 203–210
Introduction The effect of pore structure on the chloride ions ingress into concrete is quite complex.
Some investigations have been made to estimate the influence of pore structure on concrete permeability [1-4].
Whereas another method, the evaporative water method (EWM) can measure the total porosity include the boundary pore structure but can not get the detail pore structure distribution.
Material Chemistry and physics, 100(2006) 203–210
Online since: April 2016
Authors: Zhi Qiang Li, Mei Li, Wei Shao
., Ltd, Tianjin, China
2Material science and engineering school, Beihang University, Beijing, China
amli57@163.com, blizq57@163.com, c404751536@qq.com
Keywords: Polymer chemistry, Solvent properties, Extraction, Limonene
Abstract.
Fig. 1 Molecule Structure for Limonene In this study the purified mandarin oil of new chemical products was carried out.
Similar to benzene, this can be explained by the dissolution of similar molecular structure theory.
Fig. 1 Molecule Structure for Limonene In this study the purified mandarin oil of new chemical products was carried out.
Similar to benzene, this can be explained by the dissolution of similar molecular structure theory.
Online since: January 2013
Authors: Juan Li, Ya Jin Yang, Chun Ying Zhou
However, the influences of P5+, B3+, Zn2+, and Ba2+ on crystal structure of β-C2S and can not be identified by XRD pattern alone.
Fig.1 XRD patterns of doped BCSA clinker Fig.2 IR diagrams of doped BCSA clinkers Effects on structure of clinker.
Influence of Doping on Structure and properties of β-C2S[J].
Application of IR Spectrum Analysis in Cement Chemistry[J].
Cement Chemistry[J].
Fig.1 XRD patterns of doped BCSA clinker Fig.2 IR diagrams of doped BCSA clinkers Effects on structure of clinker.
Influence of Doping on Structure and properties of β-C2S[J].
Application of IR Spectrum Analysis in Cement Chemistry[J].
Cement Chemistry[J].
Online since: February 2016
Authors: Anna Yankovskaya, Artyom Yamshanov
Understanding the relationship between structure, properties and processing is the key task in various areas of physics, chemistry, science of materials and engineering, for example, at revealing defective structure of materials, investigation phase transformation of composites etc.
The most efficient area for cognitive graphics tools application is data processing and revealing regularities in big volumes of data which is weakly structured or non-structured data at all.
This tool is widely used for data analysis in geosciences, physical chemistry, petrology, mineralogy, metallurgy, and other physical sciences to show the composition of systems composed of three species [15, 16].
It can visualize the relationship between six parameters and was especially wide-spread in chemistry.
Axelrod, The Structure of Decision: Cognitive Maps of Political Elites, Princeton University Press, Princeton, 1976
The most efficient area for cognitive graphics tools application is data processing and revealing regularities in big volumes of data which is weakly structured or non-structured data at all.
This tool is widely used for data analysis in geosciences, physical chemistry, petrology, mineralogy, metallurgy, and other physical sciences to show the composition of systems composed of three species [15, 16].
It can visualize the relationship between six parameters and was especially wide-spread in chemistry.
Axelrod, The Structure of Decision: Cognitive Maps of Political Elites, Princeton University Press, Princeton, 1976
Online since: January 2013
Authors: Qing Jie Sun, Liu Xiong, Lei Dai, Xiao Lei Zhu
Acid modification changes the physicochemical properties of starch without destroying its granule structure[1].
An increase in the SOL of starches treated by acid was due to the damaged structures of starch granules[2].
Ahn: Agricultural Chemistry and Biotechnology. 1996, 39, p.49 [3] Jasim Ahmed, Rafael Auras: LWT - Food Science and Technology. 2011, 44, p.976 [4] Z.
Radosavljevic: Cereal Chemistry.1999, 76, p.629 [11] Y.
Corke: Food Chemistry. 1999, 65, p.239 [20] S.
An increase in the SOL of starches treated by acid was due to the damaged structures of starch granules[2].
Ahn: Agricultural Chemistry and Biotechnology. 1996, 39, p.49 [3] Jasim Ahmed, Rafael Auras: LWT - Food Science and Technology. 2011, 44, p.976 [4] Z.
Radosavljevic: Cereal Chemistry.1999, 76, p.629 [11] Y.
Corke: Food Chemistry. 1999, 65, p.239 [20] S.
Online since: October 2012
Authors: Hong Zhong, Shuai Wang, Zhong Nan Wang
Synthesis and adsorption properties for Ag(I) of pyridinedicanbnyl thiourea resin
Zhongnan WANG 1,2,a, Hong ZHONG 1,b, Shuai WANG 1,c
1College of Chemistry and Chemical Engineering, Central South University,
Changsha 410083, China
2College of Chemistry and Environmental Engineering, Shaoguan University,
Shaoguan 512005, China
asd-wzn@163.com, bzhongh@mail.csu.edu.cn(corresponding author), cwangshuai_csu@163.com
Keywords: synthesis; pyridinedicanbnyl thiourea; resin; adsorption; Ag(I)
Abstract.
A novel pyridinedicanbnyl thiourea chelating resin(PTR) was synthesized from pyridinedicanbnyl diisothiocyanate and diethylene triarmine , its structure was confirmed by FT-IR.
Resently we also reported a kind of acylthiourea resin[9], which has similar structure with poly(ester thiourea) , and also has a good absorptive behavior for Ag(I) ion, but can be synthesized by a more convenient and efficient method In this paper, a novel pyridinedicanbnyl thiourea chelating resin(PTR) was synthesized through interfacial polymerization of pyridinedicanbnyl diisothiocyanate hexanedioyl diisothiocyanate and diethylene triarmine .
A novel pyridinedicanbnyl thiourea chelating resin(PTR) was synthesized from pyridinedicanbnyl diisothiocyanate and diethylene triarmine , its structure was confirmed by FT-IR.
Resently we also reported a kind of acylthiourea resin[9], which has similar structure with poly(ester thiourea) , and also has a good absorptive behavior for Ag(I) ion, but can be synthesized by a more convenient and efficient method In this paper, a novel pyridinedicanbnyl thiourea chelating resin(PTR) was synthesized through interfacial polymerization of pyridinedicanbnyl diisothiocyanate hexanedioyl diisothiocyanate and diethylene triarmine .
Online since: September 2011
Authors: Lu Quan Ren, Li Yan Wu, Zhi Wu Han, Yu Qiu Song, Shi Chao Niu
The optical effects of the replication structure had been calculated with 1D photonic ‘crystal band gap’ theory.
So it needs considerable effort to replicate these nano natural structure.
In this paper, we demonstrated a new technique that uses two-photon polymerization for fabricating nanoscale structures.
This process gives us a new way to fabricate biological nano-structures.
Yokogawa: Journal of Photochemistry and Photobiology A: Chemistry, Vol. 145 (2001), pp. 101-106
So it needs considerable effort to replicate these nano natural structure.
In this paper, we demonstrated a new technique that uses two-photon polymerization for fabricating nanoscale structures.
This process gives us a new way to fabricate biological nano-structures.
Yokogawa: Journal of Photochemistry and Photobiology A: Chemistry, Vol. 145 (2001), pp. 101-106