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Online since: January 2021
Authors: Haruyuki Inui, Koretaka Yuge, Kyosuke Kishida, Chuan Qi Zhu, Jimpei Yamamoto, Yuichiro Koizumi
Comprehensive Phase-Field Study on Directionally-Solidified MoSi2/Mo5Si3 Eutectic Alloy
Chuanqi Zhu1,a, Jimpei Yamamoto1,c, Yuichiro Koizumi1,b*, Koretaka Yuge2,d, Kyosuke Kishida2,3,e, Haruyuki Inui2,3,f
1Division of Materials and Manufacturing Science, Osaka University, Japan
2Department of Materials Science and Engineering, Kyoto University, Japan
3Center for Elements Strategy Initiative for Structure Materials (ESISM), Kyoto University, Japan
achuanqi.zhu@mat.eng.osaka-u.ac.jp, bjimpei.yamamoto@mat.eng.osaka-u.ac.jp, cykoizumi@mat.eng.osaka-u.ac.jp, dyuge.koretaka.4r@kyoto-u.ac.jp,
ekishida.kyosuke.6w@kyoto-u.ac.jp, finui.haruyuki.3z@kyoto-u.ac.jp
Keywords: Gas turbine, Eutectic, Solidification, Script lamellar pattern, Phase-field simulation
Abstract.
Introduction In recent years, there has been an increasing demand for high-temperature structural materials for gas turbines.
The MoSi2/Mo5Si3 eutectic alloy is one of the promising candidates for such materials to surpass the traditional Ni-based superalloys [1].
This study was partly supported by the Center for Computational Materials Science, Institute for Materials Research, Tohoku University, the Cyber Science Center, Tohoku University, and JSPS KAKENHI Grant Numbers JP18H01735.
Mitra, Mechanical behaviour and oxidation resistance of structural silicides, International Materials Reviews 51.1 (2006) 13-64
Introduction In recent years, there has been an increasing demand for high-temperature structural materials for gas turbines.
The MoSi2/Mo5Si3 eutectic alloy is one of the promising candidates for such materials to surpass the traditional Ni-based superalloys [1].
This study was partly supported by the Center for Computational Materials Science, Institute for Materials Research, Tohoku University, the Cyber Science Center, Tohoku University, and JSPS KAKENHI Grant Numbers JP18H01735.
Mitra, Mechanical behaviour and oxidation resistance of structural silicides, International Materials Reviews 51.1 (2006) 13-64
Online since: July 2011
Authors: Jin Ping Li, Jin Hua Gan, Ying Ming Chen
These combustion wastes including fly ash, bottom ash, boiler slag and flue gas desulfurization (FGD) materials are produced by these thermal power plants in large quantities, causing significant environmental problems.
Most of the fly ash and boiler slag was deposited as landfill, expect only for a small amount that is utilized as a raw material for an additive in cement, construction materials, road pavements.
Acknowledgements This work was financially supported by Hubei Provincial Natural Science Foundation of China (2010CDB04904).
Journal of Alloys and Compounds, 1998, 264:151-156
Journal of Light Metals, 2001,1:195-198
Most of the fly ash and boiler slag was deposited as landfill, expect only for a small amount that is utilized as a raw material for an additive in cement, construction materials, road pavements.
Acknowledgements This work was financially supported by Hubei Provincial Natural Science Foundation of China (2010CDB04904).
Journal of Alloys and Compounds, 1998, 264:151-156
Journal of Light Metals, 2001,1:195-198
Online since: September 2014
Authors: Friederike Schwarz, Rudolf Kawalla, Matthias Schmidtchen, Haitham Saleh, Lutz Krüger, Stephan Reichelt
Introduction
Currently, light-weighting is one of the most important objectives in materials research.
Milner: British Welding Journal (1960) 1–6. 5.
Cui, Materials Science Forum Vols. 546-549 (2007) pp 467-470 12.
Lenard, Materials Science and Engineering A 385 (2004) 419–428. 13.
Prangnell, Materials Science & Engineering A 556 (2012) 31–42 17.
Milner: British Welding Journal (1960) 1–6. 5.
Cui, Materials Science Forum Vols. 546-549 (2007) pp 467-470 12.
Lenard, Materials Science and Engineering A 385 (2004) 419–428. 13.
Prangnell, Materials Science & Engineering A 556 (2012) 31–42 17.
Online since: May 2020
Authors: Xiao Li Xi, Lin Yan Zhao, Zuo-Ren Nie, Yang Si Liu, You Shu Fan
Effect of Hydrothermal Conditions on Crystal Structure, Morphology and Visible-Light Driven Photocatalysis of WO3 Nanostructures
Yangsi Liu1,2,a, Xiaoli Xi1,2,b*, Zuoren Nie1,2,c, Linyan Zhao1,2,d, Youshu Fan1,2,e
1College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing 100124, China
2National Engineering Laboratory for Industrial Big-data Application Technology, Beijing University of Technology, Beijing 100124, China
aliuyangsi@bjut.edu.cn, b*xixiaoli@bjut.edu.cn, czrnie@bjut.edu.cn, dzhaolinyan@emails.bjut.edu.cn, efanyoushu@emails.bjut.edu.cn
Keywords: WO3; Hydrothermal; Crystal structure; Photocatalysis; Visible-light
Abstract.
Many factors can affect the microstructure and morphology of production the hydrothermal method, such as the concentration of raw materials, pH value, hydrothermal temperature, reaction time, pressure, additives and so on.
Jian, Recent advances in tungsten-oxide-based materials and their applications, Front.
Khalid, Nanostructured-based WO3 photocatalysts: recent development, activity enhancement, perspectives and applications for wastewater treatment, International Journal of Environmental Science and Technology, 14 (2017) 2519-2542
Byrappa, Hydrothermal processing of materials: past, present and future, J.
Many factors can affect the microstructure and morphology of production the hydrothermal method, such as the concentration of raw materials, pH value, hydrothermal temperature, reaction time, pressure, additives and so on.
Jian, Recent advances in tungsten-oxide-based materials and their applications, Front.
Khalid, Nanostructured-based WO3 photocatalysts: recent development, activity enhancement, perspectives and applications for wastewater treatment, International Journal of Environmental Science and Technology, 14 (2017) 2519-2542
Byrappa, Hydrothermal processing of materials: past, present and future, J.
Online since: March 2012
Authors: Cai Jun Liu, Jian Dong Zuo
Experimental Materials.
The palletized materials will be used to make the film.
During the vibration extrusion, the vibrating frequency has big influence on viscosity of materials.
The mechanical property of materials depends upon the internal defects of materials.
[7] Yaojun Liu, Jinping Qu, Baiping Xu, et al, Polymer Materials Science and Engineering, Vol.20(2004) No.1, p18
The palletized materials will be used to make the film.
During the vibration extrusion, the vibrating frequency has big influence on viscosity of materials.
The mechanical property of materials depends upon the internal defects of materials.
[7] Yaojun Liu, Jinping Qu, Baiping Xu, et al, Polymer Materials Science and Engineering, Vol.20(2004) No.1, p18
Online since: February 2011
Authors: Jan Sieniawski, M. Yavorska
Sieniawski 2
1R&D Laboratory for Aerospace Materials, Rzeszow University of Technology, W.Pola 2, Poland
2Department of Materials Science, Rzeszow University of Technology, W.Pola 2, Poland
aemail: mjavorska@rambler.ru
Keywords: aluminide layer, CVD method, CMSX 4 nickel base superalloy, oxidation test
Abstract.
Chemical composition of CMSX 4 single crystal Elements content , % wg Al Co Cr Mo Ti W Ta Hf Re Ni 5,6 9 6,5 0,6 1 6 6,5 0,1 3 61,7 The aluminide layer was obtained in the low-activity CVD process by means of the BPXPRO3252 equipment of IonBond company in R&D Laboratory for Aerospace Materials (Fig. 1).
Material Science Forum, 369-372 (2001) 361-368 [5] Zielińska M., Sieniawski J., Yavorska M., Motyka M.: Influence of chemical composition of nickel based superalloy on the formation of aluminide coatings.
Archives of Materials Science and Engineering, (w recenzji) [6] Bouchaud B., Balmain J., Pedraza F.: Cyclic and isothermal oxidation at 1100 ºC of a CVD aluminised directionally solidified Ni superalloy.
Surface & Coating Technology, 92(1997), 69-77 [10] Reid M., Pomeroy M., Robinson J.: Microstructural instability in coated single crystal superalloys, Journal of Materials Processing Technology, 153–154 (2004), 660–665 [11] Mua N., Liua J., Byeona J., Sohna Y., Navab Y.: Long-term oxidation and phase transformations in aluminized CMSX-4 superalloys.
Chemical composition of CMSX 4 single crystal Elements content , % wg Al Co Cr Mo Ti W Ta Hf Re Ni 5,6 9 6,5 0,6 1 6 6,5 0,1 3 61,7 The aluminide layer was obtained in the low-activity CVD process by means of the BPXPRO3252 equipment of IonBond company in R&D Laboratory for Aerospace Materials (Fig. 1).
Material Science Forum, 369-372 (2001) 361-368 [5] Zielińska M., Sieniawski J., Yavorska M., Motyka M.: Influence of chemical composition of nickel based superalloy on the formation of aluminide coatings.
Archives of Materials Science and Engineering, (w recenzji) [6] Bouchaud B., Balmain J., Pedraza F.: Cyclic and isothermal oxidation at 1100 ºC of a CVD aluminised directionally solidified Ni superalloy.
Surface & Coating Technology, 92(1997), 69-77 [10] Reid M., Pomeroy M., Robinson J.: Microstructural instability in coated single crystal superalloys, Journal of Materials Processing Technology, 153–154 (2004), 660–665 [11] Mua N., Liua J., Byeona J., Sohna Y., Navab Y.: Long-term oxidation and phase transformations in aluminized CMSX-4 superalloys.
Online since: December 2010
Authors: Xiu Li Du, Jing Bo Liu, Zuo Hu Wang
However, FRPs are brittle linear materials, which will lead to the brittle failure modes of FRP prestressed concrete beams.
Materials properties.
After analyzing the existent performance indices, Feng proposed new deformability indices for various load-deformation curves of members made of new materials [8].
Acknowledgements The authors would like to acknowledge the financial support of the National Natural Science Foundation of China (No.50838001).
References [1] Janet M.Lees, Chris J.Burgoyne: ACI Structural Journal Vol. 96 (1999), p.377 [2] Janet M.Lees, Chris J.Burgoyne: ACI Structural Journal Vol. 97 (2000), p.252 [3] Zuohu Wang, Zongcai Deng, Xiuli Du: Journal of mechanical strength Vol. 29 (2007), p.914 (in Chinses) [4] Mohamed Saafi, Houssam Toutanji: Construction and Building Materials Vol. 12 (1998), p.245 [5] Houssam Toutanji, Mohamed Saafi: Composite Structures Vol. 44 (1999), p.63 [6] Nabil F.
Materials properties.
After analyzing the existent performance indices, Feng proposed new deformability indices for various load-deformation curves of members made of new materials [8].
Acknowledgements The authors would like to acknowledge the financial support of the National Natural Science Foundation of China (No.50838001).
References [1] Janet M.Lees, Chris J.Burgoyne: ACI Structural Journal Vol. 96 (1999), p.377 [2] Janet M.Lees, Chris J.Burgoyne: ACI Structural Journal Vol. 97 (2000), p.252 [3] Zuohu Wang, Zongcai Deng, Xiuli Du: Journal of mechanical strength Vol. 29 (2007), p.914 (in Chinses) [4] Mohamed Saafi, Houssam Toutanji: Construction and Building Materials Vol. 12 (1998), p.245 [5] Houssam Toutanji, Mohamed Saafi: Composite Structures Vol. 44 (1999), p.63 [6] Nabil F.
Online since: May 2011
Authors: Da Hai Xia, Ji Hui Wang, Shi Zhe Song, Bo Zhong, Zhe Wen Han
The Corrosion Behavior of Lacquered Tinplate in Functional Beverage
Dahai Xia1,a, Jihui Wang1,b, Shizhe Song1,c, Bo Zhong2,d and Zhewen Han1, e
1 School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, PR China
2 School of Civil Engineering, Tianjin University, Tianjin, 300072, PR China
adahaixia@yeah.net, bjhwang@tju.edu.cn, cszsong@tju.edu.cn, dzhongbo1989580504@163.com, ehanzhewen_23@163.com
Keywords: Epoxy phenolic coated tinplate; Functional beverage; Electrochemical impedance spectroscope; Deterioration process
Abstract.
Introductions Tinplates, as one of the most common packaging materials, are used in more than 80% of cases though the new alternative materials such as aluminum and chromated steel sheet are increasingly being used by the canning industry [1-3].
Usually, organic coated tinplates are used as food packaging materials in order to improve the corrosion resistance of tinplates.
The morphology and microstructure of the coated tinplate were characterized using an AJ-IIIa Scanning Probe Microscopes (Shanghai AJ Nano-science Development Company Limited, China).
Xu, Journal of Chinese Society for Corrosion and Protection. 25 (2005) 106
Introductions Tinplates, as one of the most common packaging materials, are used in more than 80% of cases though the new alternative materials such as aluminum and chromated steel sheet are increasingly being used by the canning industry [1-3].
Usually, organic coated tinplates are used as food packaging materials in order to improve the corrosion resistance of tinplates.
The morphology and microstructure of the coated tinplate were characterized using an AJ-IIIa Scanning Probe Microscopes (Shanghai AJ Nano-science Development Company Limited, China).
Xu, Journal of Chinese Society for Corrosion and Protection. 25 (2005) 106
Online since: November 2012
Authors: Márton Takács, Viktória Sugár
Standardized investigation methods of self compacting concrete and effect of sand content on properties in fresh state
Viktória Sugár1,a, Márton Takács1,2,b
1Szent István University, Ybl Miklós Faculty of Building Science, Department of Building Materials and Quality Management, H-1146 Budapest, Thököly str. 74., Hungary, Tel.: +36 1 2521270
2Budapest University of Technology and Economics, Department of Manufacturing Science and Technology, H-1111 Budapest, Egry József str. 1., Hungary
asugar.viktoria@ybl.szie.hu, btakacs.marton@ybl.szie.hu
Keywords: self compacting concrete, standardized investigation methods, sandy-gravel aggregate, Hungarian standard
Abstract.
At the time in Japan shortage of skilled labour caused significant problems, which they tried to solve by influencing features of building materials, to reach expected quality.
Superplasticizer (1,6 %) was used to increase consistency without increasing water-cementious material ratio.
References [1] Okamura, H. and Ouchi, M., Self-compacting Concrete, Journal of Advanced Concrete Technology Vol. 1, No. 1, April 2003, pp. 5-15 [2] N.
Siddique, Effects of elevated temperatures on properties of self-compacting-concrete containing fly ash and spent foundry sand, Construction and Building Materials, Volume 34, September 2012, pp. 512–521 [3] O.
At the time in Japan shortage of skilled labour caused significant problems, which they tried to solve by influencing features of building materials, to reach expected quality.
Superplasticizer (1,6 %) was used to increase consistency without increasing water-cementious material ratio.
References [1] Okamura, H. and Ouchi, M., Self-compacting Concrete, Journal of Advanced Concrete Technology Vol. 1, No. 1, April 2003, pp. 5-15 [2] N.
Siddique, Effects of elevated temperatures on properties of self-compacting-concrete containing fly ash and spent foundry sand, Construction and Building Materials, Volume 34, September 2012, pp. 512–521 [3] O.
Online since: January 2014
Authors: Hao Qi, Fang Chao
The material of body frame is Q235 which is simulated with multlinear plasticity material which is relative with strain ration.
Rigid material is used for power assembly to omit its deformation.
Rubber bush of rear suspension and wheel tires are defined by rubber material which belongs to incompressible hyperelastic material.
Journal of ShangHai Translation University, 2005.(9): 1452-1456 [5] Jieyueqing.
Auto Mobile Science & Technology,2008(6):11-13.
Rigid material is used for power assembly to omit its deformation.
Rubber bush of rear suspension and wheel tires are defined by rubber material which belongs to incompressible hyperelastic material.
Journal of ShangHai Translation University, 2005.(9): 1452-1456 [5] Jieyueqing.
Auto Mobile Science & Technology,2008(6):11-13.