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Online since: October 2010
Authors: Mikko Hupa, Leena Hupa, Na Li, Patrik Yrjas
Laboratory study of Corrosion of an alumina refractory by molten potassium salts Na Li1, 2, a, Leena Hupa1, c, Patrik Yrjas1, Mikko Hupa1 1Process Chemistry Centre, 2Graduate School of Materials Research,ÅboAkademi University, FI-20500,Åbo, Finland aNa.Li@abo.fi, cLeena.Hupa@abo.fi Key Words: alumina refractory,potassium salts, high temperature corrosion Abstract.
Corrosion of refractories and ceramic components by oxygen, steam, acidic or basic vapours, molten salts and coal slag of various types at high temperatures has been discussed in literature [[] Ueno S., Ohji T., Lin T.H., Corrosion and recession of mullite in water vapor environment, Journal of the European Ceramic Society 28, 2008, pp. 431–435 ,[] Curkovic L., Jelaca M.F., KurajicaS., Corrosion behavior of alumina ceramics in aqueous HCland H2SO4 solutions, Corrosion Science 50, 2008, pp. 872–878 ,[] Strobel T.M, Hurley J.P., Coal-ash corrosion of monolithic silicon carbide-based refractories, Fuel Processing Technology 44, 1995, pp. 201-211. ,[] Takahashi J., Kawai Y., and Shimada S., Hot Corrosion of Cordierite Ceramics by Na- and K salts, Journal of the European Ceramic Society18, 1998, pp. 1121-1129 ].
,Materials and Corrosion,2006, 57,No.2. ].
Online since: December 2013
Authors: Guang Xu, Jing Li, Yun Ge Tian
The system consists of a new insulation module of lightweight aggregate concrete made of material EPS, as shown in Fig.1.
It shows that the material utilization rate of the new type wall is higher than that of the ordinary shear wall.
Acknowledgements This work was financially supported by the Scientific Research Foundation of Hebei Education Department (SZ133031), and Xingtai Science and Technology Support Program (2013ZC025).
Sanjayan and Sujeeva Setunge, in: Journal of Materials in Civil Engineering, ASCE, Issue 6, Vol.17 (2005), p. 607~616
[5] Saatcioglu M, Razvi SR, in: Journal of Structural Engineering, ASCE, Issue 3, Vol.125 (1999), p. 281~289.
Online since: October 2013
Authors: Hai Tang Zhu, Quan Ji Han, Hai Bo Cui
Acknowledgments The research reported herein was supported by National Science Foundation of China (No.50879082) References [1] C.
Sharaky, Effect of material properties on long-term deflection of GFRP reinforced concrete beams, Construction and Building Material, 41 (2013) 99-108
Zou, Long-term deflection and cracking behavior of concrete beams prestressed with carbon fiber reinforced polymer tendons, Journal of Composites for Construction, 3 (2003) 187-193
Zou, Theoretical study on short-term and long-term deflection of fiber reinforced polymer prestressed concrete beams, Journal of Composites for Construction, 4 (2003) 285-291
Kevgas, Time-dependent behavior of normal and high strength concrete beams reinforced with GFRP bars under sustained loads, High Performance Materials in Bridges, (2003) 451-462
Online since: December 2012
Authors: Jian Feng Li, Jin Song Zhu
The material is concrete C50, carbon steel Q235.
Acknowledgment This work was financially supported by the Key Projects in the Science & Technology Pillar Program of Tianjin (11ZCKFSF00300).
Journal of Structural Engineering—ASCE 2010; 136(94),p.1131– 1139
Materials and Structures—RILEM 2003;36(3)p.127–134
Journal of Material Processing Technology 2004;150(3),p. 242–254
Online since: July 2015
Authors: Md. Raisuddin Khan, Moinul Bhuiyan, Md. Azhar Ali, Abdul Mannan, Marsad Latief, Tanveer Saleh
The increase in temperature is because of conduction, convection and radiation modes of heat transfer, from air inside the car, heat absorbing materials and glass and car body respectively, while radiation is the most influential factor for increase in temperature of parked car [2].Temperature variation inside the car depends on two important factors i.e., thermal radiation exchange between the environment and car body and the radiations absorption in the interior of the car cabin [3].
Hasanuzzaman, “Performance of an Improved Solar Car Ventilator”, International Journal of Mechanical and Materials Engineering (IJMME), Vol. 4 (2009), No. 1, 24 -34
American Journal of Applied Sciences 7. vol. 6, pp 784-789, 2010
Online since: January 2012
Authors: Qiang Guo, Lu Tang, Yan Bei Chen, Xiang Liang Ning
National Science Foundation NSF (San Francisco Golden Gate Bridge seismic retrofit project is a example) and American Highway Innovative Technology Evaluation Center of the American Society of Civil Engineers has organized a large concentration of pre-testing and identification to the dampers and vibration isolation devices, which are world's most advanced, has been and to be used in engineering (HITEC) [1].
Fluid viscous damper with viscous damping material as medium and effectively responsive to the passive control and velocity [3], hydraulic damper is a kind of energy dissipating and shock-absorbing device.
The viscous damping materials in fluid viscous dampers are always hydraulic oil or silicone oil.
Chinese Journal of Mechanical Engineering.
China Civil Engineering Journal.
Online since: February 2013
Authors: Lian Jun Wang, Jian Ying Gao, Wan Jiang
Mechanism of Self-Propagating High-Temperature Synthesis of MoSi2 Jianying Gaoa, Lianjun Wangb and Wan Jiangc State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, 2999 People of North Road, Shanghai 201620, China ajianying.g@gmail.com, bwanglj@dhu.edu.cn, cwanjiang@dhu.edu.cn Keywords: Activation Energy, Interface, Morphology, Quenching, Reaction Mechanism.
Microstructural observation on the materials from quenched zone shows MoSi2 particles precipitate from liquid phase.
Using Mo filament (approximately 30 mm in diameter and 1.0-1.5 mm in length) and silicon powder (99.5%, -325 mesh) as starting materials, a pellet was prepared under 30 MPa pressure for synthesizing MoSi2.
Compared to diffusion couple, powder used as starting material in SHS reaction possesses high defect concentration [13].
Wang, Analysis of Microstructural Characteristics of MoSi2 Synthesized by SHS, The Chinese Journal of Nonferrous Metals 5 (1995) 103-107
Online since: July 2017
Authors: Akeel M. Kadim, Wasan R. Saleh, Omar A. Ibrahim
Highly luminescent II-VI semiconductor nanocrystals or colloidal quantum dots (QDs) are interesting materials because of their applications in optoelectronics, nonlinear optics, and biology [3].
In general, their properties make QDs attractive materials for fabrication of hybrid semiconductor QD-organic LEDs with a highly saturated emission colour.
Experimental Work Chemical Materials All materials used in this work were supplied from Fluka Company without further purification, while N,N’-Bis(3-methylphenyl)-N,N’-bis(phenyl) benzidine (TPD) was supplied by American Dye Source (Canada).
Krueger et al., Hole-Transporting Host-Polymer Series Consisting of Triphenylamine Basic Structures for Phosphorescent Polymer Light-Emitting Diodes, Journal of Polymer Science: Part A: Polymer Chemistry, Vol. 48, (2010), 3417–3430
Willander, Study of the Distribution of Radiative Defects and Reabsorption of the UV in ZnONanorods-Organic Hybrid White Light Emitting Diodes (LEDs), Materials, Vol.4, (2011), 1260-1270
Online since: January 2013
Authors: Yu Yan Liu, Song Quan Wu, Li Li, Yu Ting Liu, Guo Hua Shan
Chemical Recycling of Epoxide-anhydride Hardened Networks Using Near-critical Water Liu Yuyan1,a, Wu Songquan1,b, Li Li2,c, Liu Yuting1,d,Shan Guohua1,e 1School of Chemical Engineering and Technology, Harbin Institute of Technology, P.R.China 2Department of Materials Science and Engineering, Carnegie Mellon University, USA aliuyy@hit.edu.cn, bwusongquan@hit.edu.cn, clili86283411@gmail.com, dliuyuting5432@163.com, esgh.kaoyan@163.com Keywords: Epoxy resin; Near-critical water; Recycle; Decomposition Abstract.
The applications for epoxy-based materials are extensive including coatings, adhesives and composite materials such as those using carbon fiber and fiberglass reinforcements.
Decomposition mechanism of epoxide-anhydride hardened networks Acknowledgement The authors gratefully acknowledge the financial support by the National Science Foundation of China under grant by No.50973023 and No. 50773016 and Program for New Century Excellent Talents in University(NCET-09-0060).
Madden: Journal of Materials Processing Technology.
Hyde: Composites Part A: Applied Science and Manufacturing.
Online since: June 2006
Authors: M.E. Kordesch, Abu Hassan Haslan, Hassan Zainuriah, F.K. Yam
However, the main problem in producing high quality GaN films is the absence of suitable substrate materials, since bulk GaN in wafer size is not available.
From the literature, the E2(high) mode varied widely from 564.9 to 571 cm-1 [11-13,17], depending on the growth parameters, purity of the materials and as well as the quality of the films.
Kordesch, Journal of Physical Science, Vol. 12 (2001), p. 12 [4] K.
Buyanova, in: GaN and Related Materials, edited by Stephen J.
Akasaki, Materials Science and Engineering Vol.