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Online since: May 2012
Authors: Yu Dong Huang, Jia Xin Liu
Domen: Chemistry of Materials, Vol. 17 (2005) No.10,p2487
[13] A.
Hara: Journal of Physical Chemistry C, Vol. 113 (2009) No.8,p.3181 [19] A.
Yanagisawa: Green Chemistry, Vol. 10 (2008) No.10,p.1033 [20] A.
Mao: Green Chemistry, Vol. 12 (2010) No.4,p. 696 [23] S.V.
Sels: Green Chemistry, Vol. 12 (2010),p.1560 [24] Y.J.
Hara: Journal of Physical Chemistry C, Vol. 113 (2009) No.8,p.3181 [19] A.
Yanagisawa: Green Chemistry, Vol. 10 (2008) No.10,p.1033 [20] A.
Mao: Green Chemistry, Vol. 12 (2010) No.4,p. 696 [23] S.V.
Sels: Green Chemistry, Vol. 12 (2010),p.1560 [24] Y.J.
Online since: August 2014
Authors: Ya Bing Liu, Li Guang Xiao
A summary of the crystallographic data and structure refinements for 1 is given in Table 1.
Results and Discussion 3.1 Crystal structure of 1.
Lehn: Supramolecular Chemistry (VCH, New York 1995)
Vögtle: Supramolecular Chemistry (Wiley Chicester 1991)
Lehn: Comprehensive Supramolecular Chemistry (Pergamum, New York 1996)
Results and Discussion 3.1 Crystal structure of 1.
Lehn: Supramolecular Chemistry (VCH, New York 1995)
Vögtle: Supramolecular Chemistry (Wiley Chicester 1991)
Lehn: Comprehensive Supramolecular Chemistry (Pergamum, New York 1996)
Online since: January 2020
Authors: Natalya Gabelchenko, Artem Belov, Alena Savchenko
The Role of the Primary Structure in the Formation of the Mechanical
Properties of Steel Castings
Natalya Gabelchenko1,a*, Artem Belov2,b and Alena Savchenko1,2,c
1Volgograd State Technical University, 28, Lenin avenue, Volgograd, 400005, Russia
2Lomonosov Moscow State UniversityFaculty of Chemistry, Russia,119991, Moscow 1, GSP-1, 1-3 Leninskiye Gory
anatalya-ig@rambler.ru, baa-belov@bk.ru, calig_i@rambler.ru
Keywords: steel, primary structure, dendrites, roughening process, primary crystallization, mechanical properties.
Thus, the more dispersed the dendritic structure of a metal formed in the process of crystallization, the more qualitative characteristics its structure will have after solidification.The primary structure of steel, mainly characterized by the dispersion of dendritic crystals and the size of the primary grain in castings, unlike the secondary structure, does not obey the principle of additivity or mixing.This means that it is impossible to build reasonable predictions of the mechanical properties of two different steels based on any specific parameters of their primary structure.
At the same time, if the secondary structure and properties of the steel can be changed with a well-chosen heat treatment mode, then there are no recommendations on how to influence the primary structure of the steel.
Zaymovsky, Structure and mechanical properties of metals, Moscow, Metallurgy, 1970
Il'Inskii, Factors affecting the dispersity of the dendritic structures in steels.
Thus, the more dispersed the dendritic structure of a metal formed in the process of crystallization, the more qualitative characteristics its structure will have after solidification.The primary structure of steel, mainly characterized by the dispersion of dendritic crystals and the size of the primary grain in castings, unlike the secondary structure, does not obey the principle of additivity or mixing.This means that it is impossible to build reasonable predictions of the mechanical properties of two different steels based on any specific parameters of their primary structure.
At the same time, if the secondary structure and properties of the steel can be changed with a well-chosen heat treatment mode, then there are no recommendations on how to influence the primary structure of the steel.
Zaymovsky, Structure and mechanical properties of metals, Moscow, Metallurgy, 1970
Il'Inskii, Factors affecting the dispersity of the dendritic structures in steels.
Online since: September 2024
Authors: Sumari Sumari, Nazriati Nazriati, Hadi Nur, Muhammad Hafidz Ramadhan
Retention time, area, mass, compound name, and structure based on LC-MS results.
Material characterization using XRD XRD test was conducted to see the crystal structure of the synthesized material.
Therefore, at high temperatures, the γ-MnO2 and δ-MnO2 phases tend to form denser polymorph structures such as α-MnO2 and β-MnO2.
One limitation of the green chemistry method is that it is difficult to regulate the size and shape of particles, which can be highly variable.
Wage, Organic Chemistry, 8th Edition., Pearson Education, Pearson, 2012
Material characterization using XRD XRD test was conducted to see the crystal structure of the synthesized material.
Therefore, at high temperatures, the γ-MnO2 and δ-MnO2 phases tend to form denser polymorph structures such as α-MnO2 and β-MnO2.
One limitation of the green chemistry method is that it is difficult to regulate the size and shape of particles, which can be highly variable.
Wage, Organic Chemistry, 8th Edition., Pearson Education, Pearson, 2012
Online since: October 2018
Authors: S.Yu. Khashirova, Albert S. Shabaev, Rustam M. Mamkhegov, Kamila T. Shakhmurzova, Zh.I. Kurdanova, Azamat A. Zhansitov
At the same time, its chemical structure, which consists of oxygen atoms bound by phenylene rings or oxygen atoms and carbonyl groups, provides high strength and flexibility of macromolecules.
Therefore, the study of the effect of processing on the structure and properties of these polymers is of particular interest.
This shows that recycling enhances amorphism and, possibly, worsens the crystal structure of PEEK.
Chemistry and Chemistry. technology.
Fibre Chemistry 49 (2018) 414-419
Therefore, the study of the effect of processing on the structure and properties of these polymers is of particular interest.
This shows that recycling enhances amorphism and, possibly, worsens the crystal structure of PEEK.
Chemistry and Chemistry. technology.
Fibre Chemistry 49 (2018) 414-419
Online since: March 2019
Authors: Siti Nurul'ain Yusop, Md Azmi Nik Salwani, Nornizar Anuar, Nurul Hidayah Abu Bakar
The crystal structure of CBZ form (III) was obtained from the Cambridge Structural Database (CSD) (ref code: CMBZPN01).
This phenomenon can be explained by looking at the suface chemistry of the (0 1 1) and (0 -1 -1) faces (Figure 3(a) i and ii).
Figure 3(g) i and ii shows the surface chemistry of (1 1 -2) and its symmetrical facet (-1 -1 2).
Chinese Journal of Chemistry. 30 (2012) 115 – 120 [16] R Gholizadeh, Y Wang, Y-X Yu.
Journal of Molecular Structure 1138 (2017) 198 – 207
This phenomenon can be explained by looking at the suface chemistry of the (0 1 1) and (0 -1 -1) faces (Figure 3(a) i and ii).
Figure 3(g) i and ii shows the surface chemistry of (1 1 -2) and its symmetrical facet (-1 -1 2).
Chinese Journal of Chemistry. 30 (2012) 115 – 120 [16] R Gholizadeh, Y Wang, Y-X Yu.
Journal of Molecular Structure 1138 (2017) 198 – 207
Online since: February 2011
Authors: Wen Fang Yang, Zhi Qui Zhang, Zhen Ya Gu, Xiao Xing Shen, Qing Fu Zhang
So the preparation of the superhydrophobic surface should make rough structure and cover low surface energy materials on the rough structure [6,7].
This might be attributed to the effects of the quantity of nano-silica on the rough structure of the coating surface of PVDF membrane.
The PVDF membrane had excellent superhydrophobic property when the nano-structure and microstructure was 86nm and 6µm respectively which is similar to the microstructures of the lotus leaves(50~70nm, 5~9μm), its surface structure was shown in Fig.8.
[3] ZHiqiu Zhang, Wenfang Yang and Zhenya Gu, New Building Materials, No.35, 2009, p.78-81.in Chinese [4] Zhiguang Guo, Weimin Liu, Progress In Chemistry, Vol.18, No.6, 2006, p.723-726. in Chinese [5] Neelesh A.Patankar.Mimicking, Langmuir, No.20, 2004, p.8209-8213
[6] Changhong Li, Yi Xiao and Zhe Cui, et al, Chinese Journal of Inorganic Chemistry, No.5, 2006, p.785-788. in Chinese [7] Lichao Gao, Thomas J and Marthy, Langmuir, No.22, 2006, p.6234-6237.
This might be attributed to the effects of the quantity of nano-silica on the rough structure of the coating surface of PVDF membrane.
The PVDF membrane had excellent superhydrophobic property when the nano-structure and microstructure was 86nm and 6µm respectively which is similar to the microstructures of the lotus leaves(50~70nm, 5~9μm), its surface structure was shown in Fig.8.
[3] ZHiqiu Zhang, Wenfang Yang and Zhenya Gu, New Building Materials, No.35, 2009, p.78-81.in Chinese [4] Zhiguang Guo, Weimin Liu, Progress In Chemistry, Vol.18, No.6, 2006, p.723-726. in Chinese [5] Neelesh A.Patankar.Mimicking, Langmuir, No.20, 2004, p.8209-8213
[6] Changhong Li, Yi Xiao and Zhe Cui, et al, Chinese Journal of Inorganic Chemistry, No.5, 2006, p.785-788. in Chinese [7] Lichao Gao, Thomas J and Marthy, Langmuir, No.22, 2006, p.6234-6237.
Online since: October 2012
Authors: Ayyaswamy Arivarasan, Sasikala Ganapathy, Ramasamy Jayavel
The surface chemistry plays a great role concerning the properties of the NCs, such as the quantum yield and photo stability.
Numerous effective methods have been developed to change the surface chemistry of the QD’s.
The powder XRD spectrum shows that the MSA and TGA capped CdTe QDs are belonging to wurtzite structure with various planes.
Perspectives on the physical chemistry of semiconductor nanocrystals.
Journal of Physics Chemistry, 1996, 100(31): 13226–13239 [5] Woggon, U.
Numerous effective methods have been developed to change the surface chemistry of the QD’s.
The powder XRD spectrum shows that the MSA and TGA capped CdTe QDs are belonging to wurtzite structure with various planes.
Perspectives on the physical chemistry of semiconductor nanocrystals.
Journal of Physics Chemistry, 1996, 100(31): 13226–13239 [5] Woggon, U.
Online since: May 2025
Authors: Shuhazlly Mamat, Khamirul Amin Matori, Mohammed Isah Isah Kimpa, Sharifat Olalonpe Ibrahim, Kasim Uthman Isah, Abubakar Sadiq Sanda
Journal of Materials Chemistry A, 11: 7605–7616
In Journal of Energy Chemistry, 82: 170–197
Inorganic Chemistry Communications, 154: 1-6
Chemistry of Materials, 24(2): 287 - 293 [31] Wang, Q.
Journal of Physics and Chemistry of Solids, 72, 613–619
In Journal of Energy Chemistry, 82: 170–197
Inorganic Chemistry Communications, 154: 1-6
Chemistry of Materials, 24(2): 287 - 293 [31] Wang, Q.
Journal of Physics and Chemistry of Solids, 72, 613–619
Online since: January 2009
Authors: Rong Zeng, Chang Ren Zhou, Yi Zhang, Mei Tu
It's found that protein
characteristics would greatly affect the adsorption kinetics, structure and viscoelastic properties of
adsorbed protein layers.
As shown in Figure 2, in contrast with BSA layer with a dense structure, collagen-I showed a loose supramolecular structure in a random fashion.
Vörös: Analytical Chemistry, Vol. 78 (2006), p. 711
Ziegler: Analytical and Bioanalytical Chemistry, Vol. 375 (2003), p. 53
Elwing: Analytical Chemistry, Vol. 73 (2001), p. 5796
As shown in Figure 2, in contrast with BSA layer with a dense structure, collagen-I showed a loose supramolecular structure in a random fashion.
Vörös: Analytical Chemistry, Vol. 78 (2006), p. 711
Ziegler: Analytical and Bioanalytical Chemistry, Vol. 375 (2003), p. 53
Elwing: Analytical Chemistry, Vol. 73 (2001), p. 5796