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Online since: July 2006
Authors: S.Q. Yao, Jian Xin Deng, Jun Zhou, C. Li, Xue Feng Yang
The structure was in Fig.1.
Table 1 The mechanics behaviors of three ceramic composite Materials Fracture toughness [MPa.m 1/2] Flexure strength [ MPa] Hardness [ GPa] Density [g/cm3] Al2O3/(W,Ti)C 5.1 850 21.5 6.64 Al2O3/Ti(C,N) 4.9 880 21 6.6 Al2O3/SiCw 8.5 780 20 5.8 Fig.1 Friction and wear experiment structure The wear and tear of Al2O3 based ceramic wire drawing was weighed by the high precision electronic scales, the decrease of weight indicated the volume of wear, and then the wear rate was figured out.
Zhang: Peking (Chemistry Industry Publishing Company, 2001)
Table 1 The mechanics behaviors of three ceramic composite Materials Fracture toughness [MPa.m 1/2] Flexure strength [ MPa] Hardness [ GPa] Density [g/cm3] Al2O3/(W,Ti)C 5.1 850 21.5 6.64 Al2O3/Ti(C,N) 4.9 880 21 6.6 Al2O3/SiCw 8.5 780 20 5.8 Fig.1 Friction and wear experiment structure The wear and tear of Al2O3 based ceramic wire drawing was weighed by the high precision electronic scales, the decrease of weight indicated the volume of wear, and then the wear rate was figured out.
Zhang: Peking (Chemistry Industry Publishing Company, 2001)
Online since: July 2016
Authors: Udom Tipparach, Buagun Samran, Emmanuel Nyambod Timah
They absorb too much energy which damages the structure of the tubes.
Tipparach, Synthesis and structure of titania nanotube for hydrogen generation, Advanced Material Research. 741 (2013) 84-89
Jiang, Nitrogen-doped TiO2 nanotubes with enhanced photocatalytic activity synthesized by a facile wet chemistry method, Materials Research Bulletin. 44 (2009) 146-150
Tipparach, Synthesis and structure of titania nanotube for hydrogen generation, Advanced Material Research. 741 (2013) 84-89
Jiang, Nitrogen-doped TiO2 nanotubes with enhanced photocatalytic activity synthesized by a facile wet chemistry method, Materials Research Bulletin. 44 (2009) 146-150
Online since: September 2013
Authors: Ming Chun Li, Zi Yao Yuan, Xing Long Liu, Yong Feng Jia, Peng Liu
The quantity of crystallization points was declined dramatically because of the changing crystal structure formed by the phosphoric acid.
Sci., Vol 30 (2007), p. 239 [5] Zhang Chuanmei and Deng Dehua: Cement and Concrete Research, Vol 29 (1999), p. 1365 [6] Z Chuanmei and D Dehua: Journal of the Chinese Ceramic Society, Vol 23 (1995), p. 673 [7] D Dehua: Cement and Concrete Research, Vol33(2003), p. 1311 [8] Sorell C A and Armstrong C R: Journal of the American Ceramic Society, Vol 59 (1976), p. 51 [9] Ji Baoqing and Xia Shuping: Chinese Journal of Applied Chemistry, Vol 12 (1995), p. 43 [10] C.
Chau and Zongjin Li: Materials and Structures, Vol 41(2008), p. 853 [11] L Zhiguang: Shandong Coal Science and Technology, Vol 44(2007), p.70
Sci., Vol 30 (2007), p. 239 [5] Zhang Chuanmei and Deng Dehua: Cement and Concrete Research, Vol 29 (1999), p. 1365 [6] Z Chuanmei and D Dehua: Journal of the Chinese Ceramic Society, Vol 23 (1995), p. 673 [7] D Dehua: Cement and Concrete Research, Vol33(2003), p. 1311 [8] Sorell C A and Armstrong C R: Journal of the American Ceramic Society, Vol 59 (1976), p. 51 [9] Ji Baoqing and Xia Shuping: Chinese Journal of Applied Chemistry, Vol 12 (1995), p. 43 [10] C.
Chau and Zongjin Li: Materials and Structures, Vol 41(2008), p. 853 [11] L Zhiguang: Shandong Coal Science and Technology, Vol 44(2007), p.70
Online since: May 2013
Authors: Hong Min Wang, Lin Lin Guo, Wei Liu, Mei Xu
Study on Film-forming Technique of Aluminum Composite Membrane Prepared by Inorganic Precursor Sol-gel Method
GUO Lin Lin 1,a , WANG Hong Min1,b , LIU Wei1,c , XU Mei1,d
1Department of Chemistry and Environmental Science, Cangzhou Normal College, Cangzhou, 061000, Hebei, China
aguolinlin0613@163.com, bwhm1961@sina.cn, clw9225@sina.com, dxm308@163.com
Keywords: film-forming technique, sol-gel method, inorganic precursor, composite membrane
Abstract.
And during sintering, the impurities would carbonized and become darkspot, influence the pore structure and purity.
At this time the structure of the membrane is plastic, so the membrane is better than that under natural drying.
And during sintering, the impurities would carbonized and become darkspot, influence the pore structure and purity.
At this time the structure of the membrane is plastic, so the membrane is better than that under natural drying.
Online since: February 2014
Authors: Fauziah Abdul Aziz, Radiman Shahidan, Nur Amira Mamat Razali, Nurul Aimi Mohd Zainul Abidin, Nur Ain Ibrahim, Noriean Azraaie
Young: Cellulose Structure Modification and Hydrolysis, Wiley, New York (1986), ISBN 0471827614
Borsali, in: Rodlike Cellulose Microcrystals: Structure, Properties and Applications, Macromolecules Rapid Communications, Vol. 25 (2004), p. 771-787
BeMiller: Cellulosic, in Carbohydrates Chemistry for For Food Scienctist, Vol. 1 (1997), p. 155
Borsali, in: Rodlike Cellulose Microcrystals: Structure, Properties and Applications, Macromolecules Rapid Communications, Vol. 25 (2004), p. 771-787
BeMiller: Cellulosic, in Carbohydrates Chemistry for For Food Scienctist, Vol. 1 (1997), p. 155
Online since: December 2011
Authors: Ying Chun Shan, Jiang Tao Li, Hui Ye, Jiu Jun Xu
Highly Transparent Y-α-sialon by Hot Pressing
Ying-Chun Shan1,a, Hui Ye1,b, Jiu-Jun Xu1,c, Jiang-Tao Li 2,d,*
1Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China
2Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China
ashanychun@126.com, byehui_dmu@163.com, cjjxu@dlmu.edu.cn, dljt0012@vip.sina.com
Keywords: sialon; optical transparency; microstructure
Abstract.
Compared to α-Si3N4, α-sialon ceramics offers the advantage of easier fabrication because of the lower viscosity of the M-Si-Al-O-N liquid phase formed during sintering, where M, the stabilizer of α-sialon structure, is the cations such as calcium, magnesium, yttrium, and rare-earth elements[1-3].
In addition, a stabilizer can be incorporate into α-sialon structure, together with the substitution of aluminum and oxygen for part of the silicon and nitrogen, resulting in ceramics with reduced amounts of residual glassy phase[4].
Compared to α-Si3N4, α-sialon ceramics offers the advantage of easier fabrication because of the lower viscosity of the M-Si-Al-O-N liquid phase formed during sintering, where M, the stabilizer of α-sialon structure, is the cations such as calcium, magnesium, yttrium, and rare-earth elements[1-3].
In addition, a stabilizer can be incorporate into α-sialon structure, together with the substitution of aluminum and oxygen for part of the silicon and nitrogen, resulting in ceramics with reduced amounts of residual glassy phase[4].
Online since: March 2017
Authors: Miroslav Karlík, Pavel Novák, Jaromír Kopeček, Pavel Salvetr, Andrea Školáková
Effect of Alloying Elements on the Reactive Sintering Behaviour of NiTi Alloy
Pavel Novák1, a*, Pavel Salvetr1, b, Andrea Školáková1, c, Miroslav Karlík2, d
and Jaromír Kopeček3, e
1University of Chemistry and Technology, Prague, Department of Metals and Corrosion Engineering, Technická 5, 166 28 Prague 6, Czech Republic
2Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Department of Materials, Trojanova 13, 120 00 Prague 2, Czech Republic
3Institute of Physics of the ASCR, v. v. i., Na Slovance 2, 182 21 Prague 8, Czech Republic
a*panovak@vscht.cz, bsalvetrp@vscht.cz, cSkolakovaA@seznam.cz, dMiroslav.Karlik@fjfi.cvut.cz, ekopecek@fzu.cz
Keywords: NiTi alloy; shape memory; powder metallurgy; reactive sintering.
Shape memory effect in this alloy is connected with the transformation between austenite (high-temperature modification having B2 cubic structure) and low-temperature monoclinic martensite [1].
Kubásek, Surface structure and corrosion resistance of short-time heat-treated NiTi shape memory alloy, Appl.
Shape memory effect in this alloy is connected with the transformation between austenite (high-temperature modification having B2 cubic structure) and low-temperature monoclinic martensite [1].
Kubásek, Surface structure and corrosion resistance of short-time heat-treated NiTi shape memory alloy, Appl.
Online since: January 2017
Authors: Yan Feng, Jun Yang, Hui Liu
As desmonsrated in a number of literatures, the tuning of the structure, morphology, or composition of Pt nanoparticles has been an effective way to improve their catalytic activity on for MOR a mass basis [3-4].
In addition, the twinned structure is also clearly observed in the TEM and HRTEM images of the as-prepared Au seed particles.
Yang, Platinum-based heterogeneous nanomaterials via wet-chemistry approaches towards electrocatalytic applications, Adv.
In addition, the twinned structure is also clearly observed in the TEM and HRTEM images of the as-prepared Au seed particles.
Yang, Platinum-based heterogeneous nanomaterials via wet-chemistry approaches towards electrocatalytic applications, Adv.
Online since: July 2012
Authors: Bin Yang, Cheng Yang Wang, Jia Ming Zheng, Ming Ming Chen
Fig4.The TGA/DTG curve of RPHSs
The pore structure of the HCSs.
The first peak started from 3.1 to 4.3nm and the other one was from 12.2 to 28.6nm, which means those HCSs consisted of microporous and mesoporous structure.
Wooley: Journal of Polymer Science Part A: Polymer Chemistry.
The first peak started from 3.1 to 4.3nm and the other one was from 12.2 to 28.6nm, which means those HCSs consisted of microporous and mesoporous structure.
Wooley: Journal of Polymer Science Part A: Polymer Chemistry.
Online since: July 2012
Authors: Yong Chun Dong, Shi Xiong Yi
Adsorption Study of Reactive Dyes on Cotton Fabric
in non-aqueous systems
Shixiong Yi1, a, Yongchun Dong 1, b
1Division of Textile Chemistry & Ecology, School of Textiles, Tianjin Polytechnic University, Tianjin 300160
a2006yishixiong@163.com, b dyefib@126.com
Key Words: Adsorption; Reactive dyes; Cotton fabric; Reverse micelles
Abstract: The non-ionic reverse micelles used for dyeing cotton fabric were prepared with a non-ionic surfactant Triton X-100 (TX-100) by injecting small amount of reactive dye aqueous solution.
Characteristics of isothermal adsorption Three water-soluble anionic reactive dyes with different molecular structures presented in Table 1 were used to investigate the characteristics of isothermal adsorption of the reactive dyes on cotton fabric at 333K, and the relationship between Ce and Qe was obtained (Fig.2).
In addition, the adsorption capacity of the dyes on cotton fabric was dependent on their molecular structure characteristics and follows by the chemical adsorption.
Characteristics of isothermal adsorption Three water-soluble anionic reactive dyes with different molecular structures presented in Table 1 were used to investigate the characteristics of isothermal adsorption of the reactive dyes on cotton fabric at 333K, and the relationship between Ce and Qe was obtained (Fig.2).
In addition, the adsorption capacity of the dyes on cotton fabric was dependent on their molecular structure characteristics and follows by the chemical adsorption.