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Online since: May 2011
Authors: Zhi Wu, Chun Yang Pan, Wei Qin Fu, Qiu Hong Wang, Da Guang Li
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.
Online since: April 2014
Authors: Yang Lu Hou, Xing Hua Fu, Wen Hong Tao, Xin Jin
Structure and Dielectric Properties of Mg, Cr-doped LaSrFeO3 Films Yanglu Hou1, a, Xinghua Fu1, a, Wenhong Tao1, a, Xin Jin1, a 1School of Materials Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China amse_fuxh@ujn.edu.cn Keywords: La0.5Sr0.5FeO3. dielectric properties. doped. thin films.
Then influencing the electrical domain and changing the material performance.
Experimental Procedure The precursor solution of samples are prepared by the sol-gel method using strontium acetate, lanthanum acetate, iron nitrate, magnesium acetate, chromic nitrate as material, using anhydrous ethanol, H2O and acetic acid as solvent, using ethanolamine, acetylacetone as chelator, according to the replacement rate of Mg, Cr.
Conclusions The precursor solution of La0.5Sr0.5FeO3, La1-xMgxFeO3, La0.5Sr0.5Fe1-x(Mg, Cr)xO3 is prepared on substrate by sol-gel method using strontium acetate, lanthanum acetate, iron nitrate, magnesium acetate, chromic nitrate as main material according to the replacement rate of Mg, Cr.
The Mg influence on the properties of SrTiO3 thin films[J], Journal of the European Ceramic Society, 2005,3(25): 3079-3083
Online since: August 2015
Authors: Nuriziani Hussin, Muzamir Isa, Siti Mariam Yusof
Oil-impregnated paper is a very reliable insulation material, because the cavities of the fibrous paper are entirely filled with oil, hence any air bubbles within the insulator are excluded [10].
Mohd Basri Wahid et al., in: Malaysian Standard: Palm Oil-Specification (Second Revision), (2007) [4] Suwarno Aditama, “Dielectric Properties of Palm Oils as Liquid Insulating Materials : Effect of Fat Content”, IEEE Proceedings of International Symposium on Electrical Insulating Materials, Kitakyushu, Japan, 5-9 June (2005) [5] Endah Yuliastuti, “Analysis of Dielectric Properties Comparison Between Mineral Oil and Synthetic Ester Oil”, Master of Science in Electrical Engineering Thesis, Delft University of Technology, (2006) [6] F.
Babadagli, “Fluid-fluid Interaction during Miscible and Immiscible Displacement under Ultrasonic Waves,” The European Physical Journal, B, 60, 447-462 (2007) [16] Hossein Hamidi, Erfan Mohammadian, Roozbeh Rafati, Amin Azdarpour, “A Role of Ultrasonic Waves on Oil Viscosity Changes in Porous Media,” IEEE Conference on Clean Energy and Technology (CEAT). (2013)
Online since: December 2010
Authors: Xue Jun Zhou, Ting Zhang, Yuan Zhi Zhang
Two different material convert into a single material to calculate on the premise that two material correspond Principle of equivalent stiffness.
To the composite beam which is poured concrete in the U section steel beam, we assume that steel and concrete materials are both ideal linear elastic.
We ensure that the concrete slab and steel beam works together perfectly ,so as to U section steel and concrete in it .So promised that the area and Stiffness of concrete are converted to the area and Stiffness of steel , we should also take the section conversion of concrete poured into U section steel and U section steel beam in to consideration . =, the following formula are derived according to the material mechanics formula (1) which, is the distance between centroid of composite section and bottom slab of U section steel (Fig. 8).
Acknowledgements: This paper is Sponsored by the important science and technology foundation of Shandong province, Grant No.[2005GG21006001 ], the science and technology plan of Education Department of Shandong province[2007] and middle-aged and young scientists incentive fund of Shandong Province, No.[2004BS04012].
[6] Yue Shi, Xiamin Hu, Min Jiang Calculatin and analysis of deflection of part steel-encased beam[J]. the Harbin Institute of Technology journal,2007,8(39)PP.304-307, In Chinese
Online since: September 2013
Authors: Peng Jie Sun, Fen Lou Zhai, Dong Xu Liu, Jia Li Yan, Jing Ning
In terms of the ultimate strength of steel material, it is the most advanced.
Material parameters The material parameters are shown in Table 1.
Acknowledgments This work is supported by The Innovation Team and Bud plan of Beijing Academy of Science andTechnology.
References [1] Zhang Xi,Wang Chunxu,Shi Qingnan.Technological Situation of Steel Wire for Steel Cord of Radial Tire[J].Journal of Iron and Steel Research,2007,19(1):1-5
Wuhan university of science and technology: Wuhan, China, 2011, pp. 23-25
Online since: January 2019
Authors: Chen Guang Hu, Shan Shan Yang, Qiao Ling Wang, Ying Xu
Effect of Chemical Composition on the Properties of Reconstructed Steel Slag Ying Xu1,a, Qiao-Ling Wang1,b, Chen-Guang Hu1,c and Shan-Shan Yang1,d North China University of Science and Technology, College of Material Science and Engineering Tangshan, China axuying9940@126.com; b965655590@qq.com; chuchenguang00ts@163.com; d623552794@qq.com Keywords: reconstruct steel slag, adjusting components, cementitious activity, volume stability Abstract.
Experiment Experimental Materials.
Table 1 Chemical composition of raw materials Name CaO SiO2 Al2O3 Fe2O3 MgO K2O FeO Others Steel slag 41.40 14.96 0.84 7.90 5.49 0.12 13.53 15.76 Cement 62.60 21.35 4.67 3.31 3.08 0.54 — 4.45 Quicklime 94.45 — — — — — — 5.55 Fly ash 6.82 51.41 26.74 5.29 0.87 1.18 — 7.69 Slag 38.20 28.64 14.60 0.42 10.82 0.44 — 6.88 From Table 1, the contents of CaO, SiO2 and Al2O3 in the original steel slag are not as high as those in cement, the content of CaO in steel slag is about 40%, the content of CaO in cement is about 62%, the content of SiO2 in steel slag is about 15%, the content of SiO2 in cement is about 22%, the content of Al2O3 in steel slag is only 0.84%, and the content of Al2O3 in cement is about 5%.
Journal of Wuhan University of Technology, 2014, 29(5): 966-971
Modification of steel slag powder by mineral admixture and chemical activators to utilize in cement-based materials.
Online since: April 2018
Authors: Peng Zhou, Lei Deng, Xin Yun Wang
Microstructure and Texture Evolution of 2024 Aluminum Alloy Sheet under Different Loading Conditions Peng Zhou1,a, Lei Deng1,b and Xinyun Wang1,c* 1State Key Laboratory of Materials and Die & Mould Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074 Wuhan, Hubei, China azhoupeng_peng@hust.edu.cn, bdenglei@hust.edu.cn, c*wangxy_hust@hust.edu.cn Keywords: 2024 aluminum; tension and compression; ODFs; texture Abstract.
Experimental Setup Material preparation.
Material used in this study was 5 mm thick 2024 aluminum alloy rolled sheets.
Acknowledgments The research was financially supported by the National Natural Science Foundation of China (No.51435007).
The authors are also grateful for the technical assistance from the Analytical Platform of the State Key Laboratory of Materials Processing and Die & Mould Technology.
Online since: May 2011
Authors: Jun Wei, Li Ying Peng, Peng Yu Wu, Teng Wang
Before testing, concrete specimens must be immersed in the 5% NaCl solution and then they were transferred to the day test platform and water retaining materials such as wet sand or sponge were placed on the surface of specimens.
[2] Chen Yueshun.Studies on the Expanding Process of Corrosive Crack in Reinforced Concrete[D].Wuhan.Huazhong University of Science&Technology,2006.In Chinese
Journal of Wuhan University of Technology(Transportation Science & Engineering), 2009,33(2):257-259.
Online since: July 2011
Authors: Yi Jian Huang, Zheng Zhong Shi
Now probability sieve is extensive used in mining industry, building materials industry and chemical industry.
Acknowledgements The authors gratefully acknowledge the support of the National Natural Science Foundation of China, No. 50975098, and the support of major scientific and technological project of Fujian Province, No. 2008HZ0002-1 in carrying out this research work.
Journal of China University of Mining & Technology, 2006:384~388.
Beijing:Science Press,1999:1-154.
Online since: October 2011
Authors: Wen Jing Hu, Zhi Zhen Liu, Zhi Hui Li
In addition, materials as we know rarely use LCEs in the state identification in the background of strong noise [6]. 2) Current research using the Duffing oscillator for the weak signal detection mainly concentrates on the low frequency case about 1Hz.
Yue, and Yang Baojun, Chaotic oscillator system and detection, Beijing: Science Press, 2007
[2] Shang Qiufeng, Yin Chengqun, Li Shilin, and Yang Yihan, , Study on detection of weak sinusoidal signal by using Duffing Oscillator,, Proceedings of the CSEE, vol. 25, pp. 65-70, January 2005 [3] Wang yongsheng, Xiao Zicai, Sun Jin, and Fang Hongda, , Simulation and Experimental study on the chaos circuit of Duffing oscillator,, Journal of Circuits and Systems, vol. 13, pp. 132-135, February 2008
Pysical Review Letters, vol.80, pp3747-3750, 1998 [5] Wang Wei, Li Qiang, and Zhao Guojie, , Novel approach based on chaotic oscillator for machinery fault diagnosis,, Measurement, vol. 41, pp. 904-911, January 2008 [6] Zhang Siyi, Guo Hongxia, Li Yaan, Wang Binghe and Zhang Pengyi, , A new method for detecting line spectrum of ship-radiated noise using Duffing oscillator ,, Chinese Science Bulletin , vol. 52, pp. 1906-1912, July 2007 [7] Gao Jinzhan, Weak Signal Detection.
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