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Online since: June 2008
Authors: Katalin Papp, Attila Lajos Tóth, Ágnes Csanády, Erika Kálmán, Zoltán Pászti, Anna C. Pintér, László Szabó, Péter Németh
Instruments
SEM experiments were carried out in order to investigate the morphology and chemistry of the
samples using a Hitachi S570 SEM equipped with a Röntec EDR288 energy dispersive
spectrometer (EDS), an EVO 40XVP ZEISS SEM, a JEOL SUPERPROBE 733 EPMA equipped
with an Oxford ISIS EDS and a LEO 1540XB FEG SEM equipped with a Röntec Quantax EDS.
The nanoindentation results contain considerably high scatter of data partly due to the mechanically roughened inhomogeneous structure.
The nanoindentation results contain considerably high scatter of data partly due to the mechanically roughened inhomogeneous structure.
Online since: May 2013
Authors: Kai Min Fan, Li Yang, Jing Tang, Qing Qiang Sun, Xiao Tao Zu
First-principles Study of the Elastic Properties of
Hexagonal Phase ScAx (A=H, He)
FAN Kai Min1, 2,a, YANG Li1,b, TANG Jing3,c, SUN Qing Qiang1,4,d and ZU Xiao Tao1,e
1School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
2Department of Physics and Engineering Technology, Sichuan University of Arts and Science, Dazhou 635000, China
3Department of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou 635000, China
4School of Science of Huaihai Institute of Technology, Lianyungang 222005, China)
aftkjm@yeah.net, byanglildk@uestc.edu.cn, ctj2248882@yeah.net, dsqq1977@hhit.edu.cn, extzu@uestc.edu.cn
Keywords: First-principles, Elastic properties, Hydrogen, Helium, Hexagonal phase scandium
Abstract.
These different electronic structures between hydrogen and helium atoms are accounted for their different effects on elastic modulus and Poisson’s ratio of scandium when hydrogen or helium atoms are added into the scandium crystal.
These different electronic structures between hydrogen and helium atoms are accounted for their different effects on elastic modulus and Poisson’s ratio of scandium when hydrogen or helium atoms are added into the scandium crystal.
Online since: April 2009
Authors: Zheng Yi Fu, Hao Wang, Wei Min Wang, Yu Cheng Wang, Jin Yong Zhang, Gui Min Zhang
Effect of Precursors on Transmittance and Microstructure of Mullite
Ceramics
Guimin Zhang
1,2,a
, Zhengyi Fu1,b ,Yucheng.Wang1,c ,Hao Wang1 ,
Weiming Wang1 , Jinyong Zhang1
1 State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University
of Technology, Wuhan 430070, PR China
2 Department of Chemistry, School of Sciences, Wuhan University of Technology, Wuhan
430070, PR China
a
zhangguimin@whut.edu.cn,
b
zyfu@whut.edu.cn,
c wangyc@whut.edu.cn
Keywords: Mullite precursor, Sol-gel, Spray-drying, Spark plasma sintering, Microstructure,
Transmittance
Abstract: Two different kinds of mullite precursors with composition 3Al2O3•2SiO2 (3:2) were
prepared by conventional drying ethanol solution and spray-drying aqueous solution of aluminum
nitrate nanohydrate and tetraethoxysilane, respectively.
The fact indicates the spherical particle structure is unfavorable to eliminate the decomposed products at lower and higher temperature.
The fact indicates the spherical particle structure is unfavorable to eliminate the decomposed products at lower and higher temperature.
Online since: December 2015
Authors: Norhayati Abdullah, Peter A.G. Cormack
Cormack2,b
1Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia
2WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow, G1 1XL, Scotland (UK).
Svec, Hypercrosslinked Polyanilines with Nanoporous Structure and High Surface Area: Potential Adsorbents for Hydrogen Storage, J.
Svec, Hypercrosslinked Polyanilines with Nanoporous Structure and High Surface Area: Potential Adsorbents for Hydrogen Storage, J.
Online since: August 2011
Authors: Qun Lu, Lian Hai Shan, Zhi Bin Zhang
Introduction
Poly-methyl-acrylic acid is a kind of anionic polymer electrolyte , which has good water soluble with –COOH side chain in its structure so that it could react with NaOH, and both of them could be used to flocculate, thicken, disperse and so on[1,2,3,4,5].
Sodium-Alginate was extracted from brown algae, and was widely used for its good biodegradability and biocompatibility in some fileds such as chemistry, biology, medical, foods and so on.
Sodium-Alginate was extracted from brown algae, and was widely used for its good biodegradability and biocompatibility in some fileds such as chemistry, biology, medical, foods and so on.
Online since: December 2006
Authors: Bing Xiao, Hong Jun Xu, Yu Can Fu, Jiu Hua Xu, Shu Sheng Li, Ming Hua Yan
(a) structure of brazed grinding wheel (b) grains distribution on wheel surface
Fig.1 Surface photography of brazed diamond grinding wheel
C D Grinding forces ratio, Fn to Ft, may be used to describe the machining difficulty of materials during
grinding process, which means the cutting ability of grinding wheel.
Lin and et al: Materials Chemistry and Physics, Vol.84 (2004), pp.251
Lin and et al: Materials Chemistry and Physics, Vol.84 (2004), pp.251
Online since: November 2006
Authors: Wilton Silva Lopes, A.G. de Souza, Crislene Rodrigues da Silva Morais
There have been discussed the synthesis,
luminescence, quantum yields, spectroscopic characteristics, structure, among others proprieties these complexes, inclusively the possibility in the production of a thin film [14-
17].
Introduction to spectroscopy: a guide for students of organic chemistry.
Introduction to spectroscopy: a guide for students of organic chemistry.