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Online since: June 2014
Authors: Jin Ping Li, Yun Long Zhang, Yu Min Zhang, Ming Hu
It was demonstrated that better interface structure was helpful for improving the bonding strength.
1.
One typical fabrication method to achieve interpenetrating structure was the infiltration of molten metal into porous ceramic preform under external pressure.
After the sintering process, the SiC ceramics with three-dimensional network structure can be obtained.
It was demonstrated that better interface structure was helpful for improving the bonding strength.
Ceramic–metal composites with an interpenetrating network[J].Materials Chemistry and Physics, 2003, Vol.81(2):329-332 [5].
One typical fabrication method to achieve interpenetrating structure was the infiltration of molten metal into porous ceramic preform under external pressure.
After the sintering process, the SiC ceramics with three-dimensional network structure can be obtained.
It was demonstrated that better interface structure was helpful for improving the bonding strength.
Ceramic–metal composites with an interpenetrating network[J].Materials Chemistry and Physics, 2003, Vol.81(2):329-332 [5].
Online since: December 2014
Authors: Gang Yi Yan
What is more, it has a very good compatibility with current structure.
Introduction SPM(Scanning Probe Microscopy) is an important tool in scientific and technical research on material, chemistry and life sciences for its unique imaging capabilities[1-3].
Adjustable inertia balance support structure using two actuators The structure where a single piezoactuator supported at the four sides in hole[9] is effective to reduce the inertial force.
In this structure, the supporting areas can be considered as an equivalent supporting point.
Conclusions In this paper, an adjustable inertia balance support structure is proposed.
Introduction SPM(Scanning Probe Microscopy) is an important tool in scientific and technical research on material, chemistry and life sciences for its unique imaging capabilities[1-3].
Adjustable inertia balance support structure using two actuators The structure where a single piezoactuator supported at the four sides in hole[9] is effective to reduce the inertial force.
In this structure, the supporting areas can be considered as an equivalent supporting point.
Conclusions In this paper, an adjustable inertia balance support structure is proposed.
Online since: December 2016
Authors: B.V. Rajendra, H.S. Sindhu, Sumanth Joishy, P.D. Babu
All deposit exhibit fibrous structure which increases with increase of precursor concentration solutions.
This response should be somehow related to the modification of the original wurtzite ZnO crystal structure [6].
Structure analysis indicates that the all films were polycrystalline in nature with hexagonal-wurtzite structure having preferred orientation of (101) plane.
All deposited films have fibrous structure.
Zhang, Physical Chemistry C 116 (2012) 624 [6] Chaboy, R.
This response should be somehow related to the modification of the original wurtzite ZnO crystal structure [6].
Structure analysis indicates that the all films were polycrystalline in nature with hexagonal-wurtzite structure having preferred orientation of (101) plane.
All deposited films have fibrous structure.
Zhang, Physical Chemistry C 116 (2012) 624 [6] Chaboy, R.
Online since: November 2014
Authors: Hai Tang, Xian Cheng Zhu
At first the user’s personalized cognitive structure is established and this structure can represent the users’ cognitive level formally.
The PCM is structured on the OCM.
Crystal Structure of high school chemistry know- ledge induction 0.5916 6 0.7268 4 0.935 9 4.
Atomic and molecular and Crystal Structure 0.5843 8 0.7333 2 0.955 10 5.
Automatic text structuring and summarization.
The PCM is structured on the OCM.
Crystal Structure of high school chemistry know- ledge induction 0.5916 6 0.7268 4 0.935 9 4.
Atomic and molecular and Crystal Structure 0.5843 8 0.7333 2 0.955 10 5.
Automatic text structuring and summarization.
Online since: February 2011
Authors: Yan Gong Yang, Zhao Jia
The structure and some properties of modified PAN fiber were investigated.
Results and discussion FTIR Spectroscopy The chemical structure of the original and modified PAN fiber was studied by FTIR spectroscopy and showen in Figure 1.
The difference of the intense absorption bands indicates that the structure of the fibers has been changed after grafting modification of PAN fiber with SM.
This kind of XRD pattern corresponds to the semi-crystalline structure or coexistence of high orientation and low amorphous order of the PAN fiber[18-19].
Part A: Pure and Applied Chemistry., Vol.43(2007) , p. 299-304 [6] Q.Dong and L.Gu: Eur.
Results and discussion FTIR Spectroscopy The chemical structure of the original and modified PAN fiber was studied by FTIR spectroscopy and showen in Figure 1.
The difference of the intense absorption bands indicates that the structure of the fibers has been changed after grafting modification of PAN fiber with SM.
This kind of XRD pattern corresponds to the semi-crystalline structure or coexistence of high orientation and low amorphous order of the PAN fiber[18-19].
Part A: Pure and Applied Chemistry., Vol.43(2007) , p. 299-304 [6] Q.Dong and L.Gu: Eur.
Online since: March 2013
Authors: Yong Zhong Jia, Jin He Sun, Ying Yao, Jun Ma, Chao Zhang, Yan Jing
Through band structure calculation, a direct band gap is predicted in SrTiO3-xNx.
Band Structure.
The concentration effect of N-doped SrTiO3 on band structure has been calculated, the band gap and band structure are displayed in Table 3 and Fig. 4, respectively.
Journal of Photochemistry and Photobiology A: Chemistry. 165 (1-3) (2004)149-156
Effect of nitrogen doping on optical properties and electronic structures of SrTiO3 films.
Band Structure.
The concentration effect of N-doped SrTiO3 on band structure has been calculated, the band gap and band structure are displayed in Table 3 and Fig. 4, respectively.
Journal of Photochemistry and Photobiology A: Chemistry. 165 (1-3) (2004)149-156
Effect of nitrogen doping on optical properties and electronic structures of SrTiO3 films.
Online since: August 2013
Authors: Kateryna Fatyeyeva, Corinne Chappey, Sergiy Rogalskyy, Oksana Tarasyuk, Stéphane Marais, Vincent Ratieuville
Moreover, such structure is only obtained when the porous agent used has a high molecular weight.
The effect of the solvent nature on the film structure was studied using NMP, DMSO, DMAc, and DMF.
A non-symmetric cellular porous structure was obtained in the case of DMF solvent (Fig. 1a).
This can be explained by the film structure.
Such structure is more fragile than the symmetric cellular pore structure obtained for the prepared with PVP K30.
The effect of the solvent nature on the film structure was studied using NMP, DMSO, DMAc, and DMF.
A non-symmetric cellular porous structure was obtained in the case of DMF solvent (Fig. 1a).
This can be explained by the film structure.
Such structure is more fragile than the symmetric cellular pore structure obtained for the prepared with PVP K30.
Online since: November 2014
Authors: Cun Hui Li, Sheng Sheng Yang, Kuo Hai Zheng, Zhong Hua Li, Dao Tan Tang
This paper presented the effects on the film structure and its durability of the preparation processing, and analyzed the polymerization theory, the film structure and composition of the film.
Infrared spectrometry was used for atomic-oxygen-protective film analysis such as the chemical structure and the contents of different elements.
So by simply choosing the appropriate substrate temperature, the degree of inorganic structure can be controlled, this will be the focus of our next work.
The film chemical structure are documented by IR spectra (Fig.4).
[2] Chen-Jierong: Low temperature plasma chemistry and its application, Science Press, P72-81
Infrared spectrometry was used for atomic-oxygen-protective film analysis such as the chemical structure and the contents of different elements.
So by simply choosing the appropriate substrate temperature, the degree of inorganic structure can be controlled, this will be the focus of our next work.
The film chemical structure are documented by IR spectra (Fig.4).
[2] Chen-Jierong: Low temperature plasma chemistry and its application, Science Press, P72-81
Online since: January 2013
Authors: Guo Min Xiao, Hu Liu, Qian Qian Shang
Facile Fabrication of Superhydrophobic Surface via SiO2/Fluoro-containing Polymer Composite Particles
Qianqian Shanga, Hu Liub, Guomin Xiaoc
School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu, 211189, China
E-mail: shang_qianqian@126.coma, huliuseu@gmail.comb, xiaogm@seu.edu.cnc
Keywords: vinyl-functional silica spheres; fluoro-containing polymer; hierarchical structure; superhydrophobic
Abstract.
The chemical structures of VFSSs and SiO2/PFS composite particles were characterized by FT-IR measurements.
Si–O–Si stretching vibration band is split into two peaks (1050 and 1149 cm-1) because Si–C bond destroys the symmetry of Si–O–Si structure.
As can be seen, the composite particles are in core/shell structure with SiO2 as the core and polymer spheres as the shell.
By combination of the SiO2/PFS particles and the aggregated copolymer particles, the hierarchical micro/nano-structure is created.
The chemical structures of VFSSs and SiO2/PFS composite particles were characterized by FT-IR measurements.
Si–O–Si stretching vibration band is split into two peaks (1050 and 1149 cm-1) because Si–C bond destroys the symmetry of Si–O–Si structure.
As can be seen, the composite particles are in core/shell structure with SiO2 as the core and polymer spheres as the shell.
By combination of the SiO2/PFS particles and the aggregated copolymer particles, the hierarchical micro/nano-structure is created.
Online since: November 2019
Authors: Ade Fitroturokhmah, Wega Trisunaryanti, Dita Adi Saputra, Karna Wijaya, Akhmad Syoufian, Hasanudin Hasanudin
Chrom/Nanocomposite ZrO2-Pillared Bentonite Catalyst for Castor Oil (Ricinus communis) Hydrocracking
Karna Wijaya1*, Akhmad Syoufian1, Ade Fitroturokhmah1, Wega Trisunaryanti1, Dita Adi Saputra2 and Hasanudin3
1Physical Chemistry Laboratory, Chemistry Department, Faculty of Mathematics and Natural Science, UniversitasGadjahMada, Sekip Utara, Yogyakarta 55281, Indonesia
2Center of Material Technology, Board of Technology Assessment and Implementation, Indonesia
3Physical Chemistry Laboratory, Chemistry Department, Faculty of Mathematics and Natural Science, Universitas Sriwijaya, Jl.
Those peaks appeared at 3626,17 cm-1 in which the absorption band of stretching vibration of Al-OH layer of octahedral structure and 3448,72 cm-1 that shows stretching vibration of Si-OH (Figure 3).
Morphology of (a) ZrO2-Bentonite and (b) Cr/ZrO2-B-3catalyst The interlayer arrangement and also the thickness of silicate layer on ZrO2-Bentonite and Cr/ZrO2-B-3 that shown by parallel dark lines that show layered structure of clay (Figure 3).
Choi, Generation and use of pure titanium pillared MCM-36 structure as a high efficiency carbon dioxide capture platform and amine loaded solid, Micropor.
Those peaks appeared at 3626,17 cm-1 in which the absorption band of stretching vibration of Al-OH layer of octahedral structure and 3448,72 cm-1 that shows stretching vibration of Si-OH (Figure 3).
Morphology of (a) ZrO2-Bentonite and (b) Cr/ZrO2-B-3catalyst The interlayer arrangement and also the thickness of silicate layer on ZrO2-Bentonite and Cr/ZrO2-B-3 that shown by parallel dark lines that show layered structure of clay (Figure 3).
Choi, Generation and use of pure titanium pillared MCM-36 structure as a high efficiency carbon dioxide capture platform and amine loaded solid, Micropor.