Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: January 2013
Authors: Qian Qian Sun, Yin Ping Si, Zhen Zhang
Introduction
Water is one of the basic materials for the earth to survive.
Beer at 1968, is the electrode that coats metal oxide materials as active layer.
SnO2, as a promising material, has high oxygen overpotential.
The content of metallic elements, microstructure of anode materials and the electrochemical characteristic affect remarkably the reaction rate and current efficiency of electrocatalytic degradation of phenol.
Journal of Shandong University (Natural Science) 43 (2008) 1-5.
Beer at 1968, is the electrode that coats metal oxide materials as active layer.
SnO2, as a promising material, has high oxygen overpotential.
The content of metallic elements, microstructure of anode materials and the electrochemical characteristic affect remarkably the reaction rate and current efficiency of electrocatalytic degradation of phenol.
Journal of Shandong University (Natural Science) 43 (2008) 1-5.
Online since: September 2007
Authors: Takayuki Takasugi, Yasuyuki Kaneno
Kaneno
b
Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University, 1-1
Gakuen-cho, Sakai, Osaka 599-8531, Japan
a
takasugi@mtr.osakafu-u.ac.jp, bkaneno@mtr.osakafu-u.ac.jp
Keywords: Multi-phase microstructure, GCP phase, Mechanical property, Creep, Ni3Al, Ni3V
Abstract.
High-temperature tension and creep test were conducted using single crystalline materials.
The results obtained are promising for the development of a new-type of high-temperature structural materials.
Except for the absence of grain boundaries, the microstructure observed in the single crystalline material was basically the same as those characterized in the cast and hot-forged materials in the previous study (Fig. 1)[5].
Yokokawa: Journal of the Japan Institute of Metals Vol. 69 (2005), p. 743
High-temperature tension and creep test were conducted using single crystalline materials.
The results obtained are promising for the development of a new-type of high-temperature structural materials.
Except for the absence of grain boundaries, the microstructure observed in the single crystalline material was basically the same as those characterized in the cast and hot-forged materials in the previous study (Fig. 1)[5].
Yokokawa: Journal of the Japan Institute of Metals Vol. 69 (2005), p. 743
Online since: July 2015
Authors: Seshadri Seetharaman, Bharath Nidambur Ballal, Nurni N. Viswanathan
Mass Diffusion in Process Metallurgy
Viswanathan Neelakantan Nurni1,a, Bharath Nidambur Ballal2,b
and Seshadri Seetharaman3,c
1Professor, Centre of Excellence in Steel Technology (CoEST), Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, India and
Visiting Professor, Metals and Minerals Processing Laboratory, Lulea University of Technology, Sweden
2Professor, Centre of Excellence in Steel Technology (CoEST), Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, India
3Distinguished Visiting Professor, Centre of Excellence in Steel Technology (CoEST), Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, India and
Professor Emeritus, Royal Institute of Technology, Stockholm, Sweden
avichu@iitb.ac.in , b nbb@iitb.ac.in, c raman@kth.se
Keywords: Diffusion, Mass Transfer, Kirkdenall Effect, Measurements, Diffusivity, Substituional
Diffusion phenomena are of great importance in materials processing wherein atomic, molecular or ionic species are distributed within a phase or among different phases.
Introduction Materials in general contain multiple phases.
Thus, diffusion phenomena, by which the species are transported within a phase as well as across different phases, play a crucial role in materials processing.
Geiger, Transport Phenomena in Materials Processing, TMS publication, Warrandale, USA (1994) [3] P.G.
Diffusion phenomena are of great importance in materials processing wherein atomic, molecular or ionic species are distributed within a phase or among different phases.
Introduction Materials in general contain multiple phases.
Thus, diffusion phenomena, by which the species are transported within a phase as well as across different phases, play a crucial role in materials processing.
Geiger, Transport Phenomena in Materials Processing, TMS publication, Warrandale, USA (1994) [3] P.G.
Online since: August 2007
Authors: Katsuyuki Tokimasa
The material tested is SUS304 austenitic stainless steel
with chemical compositions of 0.06%C, 0.38%Si, 1.52%Mn, 18.62%Cr and 8.18%Ni.
The thin-walled tubular specimens of 22mm outer diameter, 1mm wall thickness and 30mm parallel part length were cut from the bar material of 50mm diameter solution-treated at 1323K.
S is a material dependent parameter and defined by correlating uniaxial test data and cyclic torsion.
Tani: submitted to Journal of Materials Science, Japan Vol.56 (2007) [5] K.
The thin-walled tubular specimens of 22mm outer diameter, 1mm wall thickness and 30mm parallel part length were cut from the bar material of 50mm diameter solution-treated at 1323K.
S is a material dependent parameter and defined by correlating uniaxial test data and cyclic torsion.
Tani: submitted to Journal of Materials Science, Japan Vol.56 (2007) [5] K.
Online since: June 2010
Authors: Li Juan Wang, Hui Ting Yang
Preparation of Conductive PPy/cellulose Composite Fabric by using
admicellar polymerization
Hui-ting Yanga, Li-juan Wang
b*
Key Laboratory of Bio-based Material Science and Technology, Northeast Forestry University,
Harbin 150040, PR China
a
yhuiting@tom.com, bdonglinwlj@163.com
Keywords::::Polypyrrole, Cellulose, Admicellar, Conductive fabric
Abstract::::Conductive PPy/cellulose composites were prepared with flax substrate by using
admicellar polymerization.
Materials and Methods Materials Pyrrole (Kefeng, Shang Hai, China) were purified by vacuum distillation and kept cool in the dark before use.
Journal of Applied Polymer Science2004; 92, 2629-2636.
Materials and Methods Materials Pyrrole (Kefeng, Shang Hai, China) were purified by vacuum distillation and kept cool in the dark before use.
Journal of Applied Polymer Science2004; 92, 2629-2636.
Online since: October 2002
Authors: Manuel P.F. Graça, Manuel A. Valente, Maria Gracinda Ferreira da Silva
Lithium Niobate is a ferroelectric material with a high Curie temperature (Tc=1210 ºC) [1-2] and it is
widely used in optoelectronic devices [3-4].
The starting materials were tetraethylorthosilicate (TEOS), lithium nitrate (LiNO3) and niobium chloride (Cl5Nb).
Sombra, Canadian Journal of Physics, 75 (1997) 747-758
Sakka, Treatise on materials science and technology, vol 22, Academic Press, 1982.
The starting materials were tetraethylorthosilicate (TEOS), lithium nitrate (LiNO3) and niobium chloride (Cl5Nb).
Sombra, Canadian Journal of Physics, 75 (1997) 747-758
Sakka, Treatise on materials science and technology, vol 22, Academic Press, 1982.
Online since: November 2006
Authors: Zhi Wei Chen, Jian Gang Wu
Typical S-N life curve [2] is usually formulated as
Nf i Sim
= C (2)
where m and C are material (structural) dependent parameters determined by experiments.
Variable Filtering Threshold according to Equal Damage Principle As well known, most structural materials have their "fatigue limits" [2] below which the small load cycle would not cause any fatigue damage.
Journal of Applied Mechanics�1945�12:159-164 [2] W.
Jacobs and Tromp, Flight simulation on notched elements, NLR TR 74033, 1974 [7] C.Bleuzen, T.Pardessus, Crack propagation for engineering materials under variable loading condition, in Fatigue crack growth under variable amplitude loading, edited by J.
Petit, Elsevier Applied Science, June 1988, Paris, France � ��� ��� ��� ��� � ��� ��� ��� ��� load level��� filtering threshold��� 1W ���� ��� ��� ��� ��� ���� ��� ���� ��� ���� ��� ���� ���� �� �� �� � � � � � � � � ��
Variable Filtering Threshold according to Equal Damage Principle As well known, most structural materials have their "fatigue limits" [2] below which the small load cycle would not cause any fatigue damage.
Journal of Applied Mechanics�1945�12:159-164 [2] W.
Jacobs and Tromp, Flight simulation on notched elements, NLR TR 74033, 1974 [7] C.Bleuzen, T.Pardessus, Crack propagation for engineering materials under variable loading condition, in Fatigue crack growth under variable amplitude loading, edited by J.
Petit, Elsevier Applied Science, June 1988, Paris, France � ��� ��� ��� ��� � ��� ��� ��� ��� load level��� filtering threshold��� 1W ���� ��� ��� ��� ��� ���� ��� ���� ��� ���� ��� ���� ���� �� �� �� � � � � � � � � ��
Online since: May 2011
Authors: Da Guang Li, Zhi Wu, Chun Yang Pan, Wei Qin Fu, Qiu Hong Wang
Introduction
Zirconia ceramics have received great attention as engineering ceramics and catalysis materials because of their unique mechanical, electronic, thermal, and optical properties.
The precursors were prepared by the molar ratio of metal ion and oxalic acid, the mass ratio of ball and material, rotational speed and the milling time were 1:1.5, 3:1, 150rpm and 3h, respectively.
Alpha alumina was used as reference material in DTA experiment.
Acknowledgements This work was financially supported by the 211 Project of Guangdong Province under Grant (412110904), by the National Natural Science Foundation of China under Grant (51002034), by the Combination of Industry, Academic studies and Scientific research project of Guangdong Ministry of Education under Grant(2009B090300186).The authors would like to thank these offices.
Yin: Journal of Molecular Structure Vol. 690(2004), p. 181-187 [9] S.
The precursors were prepared by the molar ratio of metal ion and oxalic acid, the mass ratio of ball and material, rotational speed and the milling time were 1:1.5, 3:1, 150rpm and 3h, respectively.
Alpha alumina was used as reference material in DTA experiment.
Acknowledgements This work was financially supported by the 211 Project of Guangdong Province under Grant (412110904), by the National Natural Science Foundation of China under Grant (51002034), by the Combination of Industry, Academic studies and Scientific research project of Guangdong Ministry of Education under Grant(2009B090300186).The authors would like to thank these offices.
Yin: Journal of Molecular Structure Vol. 690(2004), p. 181-187 [9] S.
Online since: May 2011
Authors: Rui Jin Zhang, Hao Wang, Shu Guang Luan
State Ministry of Construction and Natural Science Foundation of China established special funds for research on mechanical behavior, design and construction method of HSC during the national “seventh-five” and “eighth-five” period and the striking progress[1] was achieved.
Experimental setup The experiments were carried out in the Structure and Material Laboratory of Civil Engineering College, University of Kansas, USA.
Fig.1 Fracture specimen typical load-deflection curve for HSC and NSC Test result and analysis Initial damage Both of the flexural strength measured from the specimen without notch and bending stresses calculated from the notched specimen can represent the non-uniform tensile strength index of concrete material, and please refer to the Reference [3] for its calculation method.
Critical cracking growth route is similar with uniform material.
-S.lee: Cement and Concrete Research,Vol.27(11)(1997), p.892 [8] Luan Shuguang: Journal of Hydraulic Enegineering, Vol.274(1999), p.29
Experimental setup The experiments were carried out in the Structure and Material Laboratory of Civil Engineering College, University of Kansas, USA.
Fig.1 Fracture specimen typical load-deflection curve for HSC and NSC Test result and analysis Initial damage Both of the flexural strength measured from the specimen without notch and bending stresses calculated from the notched specimen can represent the non-uniform tensile strength index of concrete material, and please refer to the Reference [3] for its calculation method.
Critical cracking growth route is similar with uniform material.
-S.lee: Cement and Concrete Research,Vol.27(11)(1997), p.892 [8] Luan Shuguang: Journal of Hydraulic Enegineering, Vol.274(1999), p.29
Online since: June 2014
Authors: Qiu Yue Li, Jie Ping Han
Biomass raw material leads to overall losses in 2012 because of the high cost increasing fast.
Upstream enterprises equipment and raw material can provide new energy power generation.
Biomass power generation still has the raw material supplement difficulties is still the obstacle of biomass power generation development.
Production dispersion, inconvenient transportation, and high cost are all the problem of the raw material.
China environmental science press(2011) “in Chinese” [8]Information on http://www.chinapower.com.cn/ [9]Information on http://www.cnxnyw.com/
Upstream enterprises equipment and raw material can provide new energy power generation.
Biomass power generation still has the raw material supplement difficulties is still the obstacle of biomass power generation development.
Production dispersion, inconvenient transportation, and high cost are all the problem of the raw material.
China environmental science press(2011) “in Chinese” [8]Information on http://www.chinapower.com.cn/ [9]Information on http://www.cnxnyw.com/