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Online since: September 2011
Authors: Hussain Noor Hana, Kartini Kamaruddin, Mohd Saman Hamidah, Habulat Afifudin
Materials and Method
2.1.
The materials to cast concrete were cement, sand, aggregate and distilled water.
Science, 211, pp.1126-1131, 1981
Bacterial carbonate precipitation as alternative surface treatment for concrete.Construction and Building Materials, 22, pp 875-885, 2008a
&Verstraete, W.Bacterial carbonate precipitation improves the durability of cementitious materials.
The materials to cast concrete were cement, sand, aggregate and distilled water.
Science, 211, pp.1126-1131, 1981
Bacterial carbonate precipitation as alternative surface treatment for concrete.Construction and Building Materials, 22, pp 875-885, 2008a
&Verstraete, W.Bacterial carbonate precipitation improves the durability of cementitious materials.
Online since: March 2013
Authors: Ning Ning Zhou, Wan Yu Ding, Dong Ying Ju
The effect of H3BO3 microaddition on microstructure of Ni/MgO Sintered compact by Co-Precipitation method
Ningning Zhou 1, a, Dongying Ju 2,b and Wanyu Ding3,
1 Graduate School of Saitama Institute of Technology, Fusaiji1690, Fukaya, Saitama369-0293, Japan
2 Department of Material Science and Engineering, Saitama Institute of Technology, Fusaiji 1690, Fukaya, Saitama 369-0293, Japan
3 School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China
a e1501snn@sit.ac.jp, b dyju@sit.ac.jp,
Keywords: co-precipitation, thermal decomposition, uniform, refinement
Abstract: In the present work, Ni/MgO powder was prepared by co-precipitation in which CO restore NiO to elemental subtance Ni due to C2O42- was decompose to CO and CO2 at 700℃.
Especially for fields of battery materials and alloy binder metal, Ni/MgO is applied widely as a catalyst that improve thermal conductivity, the heat resistance and dynamic performance of hydrogen storage materials[1].
Experimental methods The Ammonium oxalate [(NH4)2C2O4・H2O] of 25g, 1.4mol/L NiCl2・6H2O and MgCl2・4H2O of a amount of 77g were used as starting materials for preparing Ni/MgO.
Acknowledgements This work was partially supported by the “Nano Project” for Private Universities: 2011-2014 matching fund subsidy from Ministry of Education, Culture, Sports, Science and Technology.
Langmuir 2002, (18):1352-1359 [2] Tadahiro Kurosaka, Hiromi Matsuhashi, and Kazushi Arata, JOURNAL OF CATALYSIS, 179(1988), 28-35
Especially for fields of battery materials and alloy binder metal, Ni/MgO is applied widely as a catalyst that improve thermal conductivity, the heat resistance and dynamic performance of hydrogen storage materials[1].
Experimental methods The Ammonium oxalate [(NH4)2C2O4・H2O] of 25g, 1.4mol/L NiCl2・6H2O and MgCl2・4H2O of a amount of 77g were used as starting materials for preparing Ni/MgO.
Acknowledgements This work was partially supported by the “Nano Project” for Private Universities: 2011-2014 matching fund subsidy from Ministry of Education, Culture, Sports, Science and Technology.
Langmuir 2002, (18):1352-1359 [2] Tadahiro Kurosaka, Hiromi Matsuhashi, and Kazushi Arata, JOURNAL OF CATALYSIS, 179(1988), 28-35
Online since: October 2010
Authors: Yuan Wei Liu
Due to its low rigidity and the release of residual stress after more than 90% of the materials are
removed, the large-scaled parts easily deform during the cutting process.
Karabin: Materials Science Forum Vols.404-407 (2002), p. 6168
Tong: Materials Science and Engineering A Vol.499 (2009) No.1-2, p.230-233
Tang: Key Engineering Materials Vols.375-376 (2008), p.445-448
[10] H.Guo, D.W.Zuo, Y.W.Liu: Journal of Jilin University(Engineering and Technology Edition) Vol.37 (2008) No.1, p.84-88.
Karabin: Materials Science Forum Vols.404-407 (2002), p. 6168
Tong: Materials Science and Engineering A Vol.499 (2009) No.1-2, p.230-233
Tang: Key Engineering Materials Vols.375-376 (2008), p.445-448
[10] H.Guo, D.W.Zuo, Y.W.Liu: Journal of Jilin University(Engineering and Technology Edition) Vol.37 (2008) No.1, p.84-88.
Online since: July 2015
Authors: Damien Chevalier, Régis Bigot, Laurent Langlois, Pierre Cezard
Then a parametric study was carried out in order to evaluate the influence of the process parameters on the internal quality of the rolled material.
1- Introduction
Today, the progression of the European market in manufactured product area is lower than emerging countries market, which has a double-digit growth.
Table 1 Parameters of the rolling mill during the measurements Parameters Bloom Rolls Material 41Cr4 - Temperature 1200°C Between 65 and 90°C Diameter 270mm Between 350 and 700mm Length 2000mm - Measurements have been performed on the production line to adjust the model with industrial data.
Fig. 5 Comparison of torque between experimental measurements and adjusted model Fig. 6 Comparison of temperature between experimental measurements and adjusted model The loading of material is known in the rolled product for each stand like the stresses, the hydrostatic pressure, the strain rate and the plastic strain (see Fig. 7) [1].
NALAWADE and al, Simulation of hot rolling deformation at intermediate passes and its industrial validity, International Journal of Mechanical Sciences (2003) [2] H.
GU and al, Multi-field coupled numerical simulation of microstructure evolution during the hot rolling process of GCr15 steel rod, Computational Materials Science (2011)
Table 1 Parameters of the rolling mill during the measurements Parameters Bloom Rolls Material 41Cr4 - Temperature 1200°C Between 65 and 90°C Diameter 270mm Between 350 and 700mm Length 2000mm - Measurements have been performed on the production line to adjust the model with industrial data.
Fig. 5 Comparison of torque between experimental measurements and adjusted model Fig. 6 Comparison of temperature between experimental measurements and adjusted model The loading of material is known in the rolled product for each stand like the stresses, the hydrostatic pressure, the strain rate and the plastic strain (see Fig. 7) [1].
NALAWADE and al, Simulation of hot rolling deformation at intermediate passes and its industrial validity, International Journal of Mechanical Sciences (2003) [2] H.
GU and al, Multi-field coupled numerical simulation of microstructure evolution during the hot rolling process of GCr15 steel rod, Computational Materials Science (2011)
Online since: August 2023
Authors: Zainab H. Shaker, Mudhafar K. Hameedi, Khalid W. Abd Al-Kaream, Mohammed D. Noori
A et al [6] investigated the ability of these materials to become a reasonable stabilizer to be used in soil remediation.
Many of the previous studies relied on the use of industrial materials, some of which are not environmentally friendly.
Since this soil does not have enough strength, for strengthening the materials, we have adopted stabilizing materials.
This work showed a promising use of soil materials, and the following conclusions can be drawn from this study: 1.
H., (2013), “Application of Lime and Pozzolan for Stabilization of Silty Sand Soils in Irrigation and Drainage Networks” Journal of Science & Technology of Agriculture & Natural Resources, Vol. 16, No. 62, pp. 245- 257
Many of the previous studies relied on the use of industrial materials, some of which are not environmentally friendly.
Since this soil does not have enough strength, for strengthening the materials, we have adopted stabilizing materials.
This work showed a promising use of soil materials, and the following conclusions can be drawn from this study: 1.
H., (2013), “Application of Lime and Pozzolan for Stabilization of Silty Sand Soils in Irrigation and Drainage Networks” Journal of Science & Technology of Agriculture & Natural Resources, Vol. 16, No. 62, pp. 245- 257
Online since: August 2013
Authors: Shuo Zhang, Yan Zhou Li, Cai Gui Huang, Wei Wang
(1)
The Material Reaction.
Figure 2: The force diagram of material Set the density of material is, the centrifugal force on the micro block is:
(6) In the calculation formula —the centrifugal pressure of the material —the density of the material — the outside radius of the material —the inside radius of the material The Centrifugal Pressure of Filter Screen.
(7) In the calculation :--the mass of the filter screen; — the inside radius of then rotary drum; --the speed; —the height of the inner wall of the rotary drum The basis for strength: according to JB/TSO51—《The Rules of Strength Calculation of Centrifuge》 of our country, the allowable stress of material science:
Journal of Mechanical Strength,2002,24(2):295-297 [7] Jiang Yongtao.Finite-element Analysis and Structural Optimization for Drum of Hang Type Centrifuge [D].
Figure 2: The force diagram of material Set the density of material is, the centrifugal force on the micro block is:
(6) In the calculation formula —the centrifugal pressure of the material —the density of the material — the outside radius of the material —the inside radius of the material The Centrifugal Pressure of Filter Screen.
(7) In the calculation :--the mass of the filter screen; — the inside radius of then rotary drum; --the speed; —the height of the inner wall of the rotary drum The basis for strength: according to JB/TSO51—《The Rules of Strength Calculation of Centrifuge》 of our country, the allowable stress of material science:
Journal of Mechanical Strength,2002,24(2):295-297 [7] Jiang Yongtao.Finite-element Analysis and Structural Optimization for Drum of Hang Type Centrifuge [D].
Online since: September 2013
Authors: Li Yang, Jin Guo Ge, Min He, Ning Zhang
Experimental materials and methods
Experimental materials.
XKY2011209), and Xuzhou Engineering Research Center of Nonferrous Metal and New Materials Processing.
Laser cladding for wear-resistant Cr-alloyed Ni2Si-NiSi intermetallie composite coatings[J], Materials Letters, 2003, (57): 2914-2918
Laser cladding of aerospac materials[J], Journal of Materials Processing Technology, 2002, (122): 63-68
Journal ofMaterials Processing Technology[J], 2005, 160:401-409
XKY2011209), and Xuzhou Engineering Research Center of Nonferrous Metal and New Materials Processing.
Laser cladding for wear-resistant Cr-alloyed Ni2Si-NiSi intermetallie composite coatings[J], Materials Letters, 2003, (57): 2914-2918
Laser cladding of aerospac materials[J], Journal of Materials Processing Technology, 2002, (122): 63-68
Journal ofMaterials Processing Technology[J], 2005, 160:401-409
Online since: October 2010
Authors: Yin Qun Hua, Zheng Rong Cai, Yu Xiao Chen, Hui Jiang, Rui Fang Chen
Introduction
Laser shock processing (LSP) is a new surface modification technology, which makes use of the
mechanical effect of high pressure shock wave generating in the process of interaction between
metal materials and high power density, short pulse.
It changes the surface of materials, internal organizational structure and stress state, improves strength of materials, fatigue resistance, wearresistant and stress corrosion resistant[1-2], thereby improves the fatigue life of metal materials , the security and the authenticity.
Zhang and Y.L.Yao: ASME Journal of Manufacturing Science and Engineering, Vol.124(2002) No.4, pp.369-378.
LEE: Advanced Materials & Processes, Vol.157 (2000) No.13, pp.75-80
Shi: Journal of Materials Processing Technology,Vol.138 (2003) No.10, pp.489-493
It changes the surface of materials, internal organizational structure and stress state, improves strength of materials, fatigue resistance, wearresistant and stress corrosion resistant[1-2], thereby improves the fatigue life of metal materials , the security and the authenticity.
Zhang and Y.L.Yao: ASME Journal of Manufacturing Science and Engineering, Vol.124(2002) No.4, pp.369-378.
LEE: Advanced Materials & Processes, Vol.157 (2000) No.13, pp.75-80
Shi: Journal of Materials Processing Technology,Vol.138 (2003) No.10, pp.489-493
Online since: December 2013
Authors: Mohd Nazree B. Derman, Mohd Zaidi Omar, Rohaya Abdul Malek, Siti Hawa Salleh
Zirconia is considered as the most vital ceramic materials at the present time.
Those attractive advantages make zirconia coatings have been widely used in various engineering materials.
Meanwhile, yttria coating can be deposited on variety materials such as aluminum, quartz, stainless steel and other substrate materials [7-9].
[5] S.K.Yen, S.H.Chiou, S.J.Wu, C.C.Chang, S.P.Lin, C.M.Lin, Materials Science and Engineering C 26 (2006) 65-77
[6] Salleh, S.H., Omar, M.Z., Syarif, J., Ghazali, M.J., Abdullah, S. & Sajuri, Z., International Journal of Mechanical and Materials Engineering 4 (2) 21–24. 2009
Those attractive advantages make zirconia coatings have been widely used in various engineering materials.
Meanwhile, yttria coating can be deposited on variety materials such as aluminum, quartz, stainless steel and other substrate materials [7-9].
[5] S.K.Yen, S.H.Chiou, S.J.Wu, C.C.Chang, S.P.Lin, C.M.Lin, Materials Science and Engineering C 26 (2006) 65-77
[6] Salleh, S.H., Omar, M.Z., Syarif, J., Ghazali, M.J., Abdullah, S. & Sajuri, Z., International Journal of Mechanical and Materials Engineering 4 (2) 21–24. 2009
Online since: February 2007
Authors: Katalin Papp, András Szalay, Péter M. Nagy, Erika Kálmán, László Ipacs, Gyula Kakuk, István E. Sajó, Ágnes Csanády
The high
compaction pressures and velocities (>102 m/s) offer the possibility to compact the materials
without heat treatment.
• Dynamic compaction (HERF) using explosive techniques seems to offer a good method for the compaction of nanostructured materials.
Koch, The synthesis and structure of nanocrystalline materials produced by mechanical attrition: a review, Nanostructured Materials, Vol.2. (1993), p. 109 [2] B.S.
Kearns, Development and applications of ultrafine aluminium powders, Materials Science and Engineering A, Vol 375-377 (2004), p.120 [8] G.R.
Lyakhov, Preparation and sintering of nanosized α - Al2O3 powder, Nanostructured Materials, Vol11/5 (1999) 559
• Dynamic compaction (HERF) using explosive techniques seems to offer a good method for the compaction of nanostructured materials.
Koch, The synthesis and structure of nanocrystalline materials produced by mechanical attrition: a review, Nanostructured Materials, Vol.2. (1993), p. 109 [2] B.S.
Kearns, Development and applications of ultrafine aluminium powders, Materials Science and Engineering A, Vol 375-377 (2004), p.120 [8] G.R.
Lyakhov, Preparation and sintering of nanosized α - Al2O3 powder, Nanostructured Materials, Vol11/5 (1999) 559