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Online since: October 2012
Authors: Zhong Chu, Shen Jie Zhou, Hai Tao Wang, Hua Shun Yu
Study on Exfoliation Resistance of Ferro Superalloy Composite Oxide Scale
Haitao Wang1, 2, a, Shenjie Zhou1, b, Huashun Yu3, c and Zhong Chu2, d
1 School of Mechanical Engineering, Shandong University, Jinan, 250061, China
2 School of Mechanical Engineering, Qingdao Technological University, 11 Fushun Road,
Qingdao 266033, China
3 Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan 250061, China
ahtwangsd@126.com, bzhousj@sdu.edu.cn,cyuhuashun2002@yahoo.com.cn, dcz@qtech.edu.cn
Key words: Ferro superalloy, Oxide scale, Growing stress, Scale exfoliation
Abstract.
With lower price and predominant performance comparing to cobalt or nickel superalloys, ferro superalloy is applied broadly in energy sources, aviation and petrochemical industry high temperature structural materials [1, 2].
Yazdipour: Materials Chemistry and Physics, Vol. 101 (2007), p. 153 [3] Ministry of Metallurgical Industry of China: GB/T13303-1991, Steels-Determination Method of Oxidation (Standard Press of China, Beijing 1991) (In Chinese) [4] H.
Min: Journal of Wuhan University of Technology Materials Science Edition, Vol. 25 (2010), p. 99 [6] N.
Bedworth: Journal of institute of Metals, Vol. (1923), p.529
With lower price and predominant performance comparing to cobalt or nickel superalloys, ferro superalloy is applied broadly in energy sources, aviation and petrochemical industry high temperature structural materials [1, 2].
Yazdipour: Materials Chemistry and Physics, Vol. 101 (2007), p. 153 [3] Ministry of Metallurgical Industry of China: GB/T13303-1991, Steels-Determination Method of Oxidation (Standard Press of China, Beijing 1991) (In Chinese) [4] H.
Min: Journal of Wuhan University of Technology Materials Science Edition, Vol. 25 (2010), p. 99 [6] N.
Bedworth: Journal of institute of Metals, Vol. (1923), p.529
Online since: October 2013
Authors: Ming Song Zhang, Pu Xian Zhu, Jian Jun Ke, Yi Kuan Zhu
Firstly, from cutting device analysis, summarized as follows:(1) noise reduction screen on the noise reduction effective is obvious, and disadvantage is high cost, complicated when disassembling saw blade; (2) set the damping attenuation materials on the surface inside the shield, such as felt, rubber, etc, and disadvantage is damping layer is easy to be scratched or contaminated.
Journal of Forestry Machinery, 1985, 4~5
Influence of slots and filling viscoelastic materials on vibration of circular saw[J].
Journal of Engineering Design, 2010 (5) : 355-359
Ph.D dissertation, university of science and technology in Beijing, 1994:36 ~ 59.
Journal of Forestry Machinery, 1985, 4~5
Influence of slots and filling viscoelastic materials on vibration of circular saw[J].
Journal of Engineering Design, 2010 (5) : 355-359
Ph.D dissertation, university of science and technology in Beijing, 1994:36 ~ 59.
Online since: November 2013
Authors: Pei Jen Wang, Yuan Chieh Cheng, Wei Yao Hsu
In conclusion, the adhesion phenomenon is interpreted via hydrophobic contact angles showing that hydrophobic contact angle of Ni-P-PTFE surfaces is smaller when compared to Ni-P surfaces which infers the anti-adhesion properties of Ni-P-PTFE materials.
It is well known that micro impacts are expected to occur during ultra-precision machining of amorphous materials because imperfections in the material structure.
Therefore, machining of electroless Ni-P material with less phosphorus content will lead to higher abrasive wear.
Acknowledgments: The authors would like to thank the National Science Council in Taiwan, ROC for the financial support during the research period under the Project No.
Meada, Cutting performance of diamond tools during ultra-precision turning of electroless nickel plated die materials, Journal of Materials Processing Technology, 140 (2003) 308-313
It is well known that micro impacts are expected to occur during ultra-precision machining of amorphous materials because imperfections in the material structure.
Therefore, machining of electroless Ni-P material with less phosphorus content will lead to higher abrasive wear.
Acknowledgments: The authors would like to thank the National Science Council in Taiwan, ROC for the financial support during the research period under the Project No.
Meada, Cutting performance of diamond tools during ultra-precision turning of electroless nickel plated die materials, Journal of Materials Processing Technology, 140 (2003) 308-313
Online since: March 2011
Authors: Shao Jie Liu, Lin Lin Fu, Qian Li, Hao Li, Feng Qing Zhao
For this method, the calcium oxide and calcium sulfate in the modification desulfurized ash are used to replace the lime, gypsum and other materials.
So the application of this desulfurization ash in building materials has certain restrictions.
We aim to partially oxidize the calcium sulfite in the semi-dry desulfurization ash, and make full use of calcium oxide and calcium sulfate in it to replace the lime, gypsum and other materials.
The mixed materials were pressed to bricks at 20 MPa.
Tashimo, et al, Chemical Engineering Science, Vol.55(2000), p. 643 [7] Zhang Fan, Wang Hongmei, Lin Jun, Chinese Journal of Environmental Engineering,Vol.2(2004), p. 31(In Chinese) [8] Yang Liuchun, Jiangxi Energy, Vol. 3(2005), p. 24(In Chinese) [9] Yang Xinya, Zhang Liying, Liu Hongbo, Coal Ash China, Vol.4(2006), p. 10(In Chinese) [10] Guo Bin, Bian Jingfeng, Ren Ailing, Environmental Pollution & Control, Vol.7(2009), p. 1(In Chinese)
So the application of this desulfurization ash in building materials has certain restrictions.
We aim to partially oxidize the calcium sulfite in the semi-dry desulfurization ash, and make full use of calcium oxide and calcium sulfate in it to replace the lime, gypsum and other materials.
The mixed materials were pressed to bricks at 20 MPa.
Tashimo, et al, Chemical Engineering Science, Vol.55(2000), p. 643 [7] Zhang Fan, Wang Hongmei, Lin Jun, Chinese Journal of Environmental Engineering,Vol.2(2004), p. 31(In Chinese) [8] Yang Liuchun, Jiangxi Energy, Vol. 3(2005), p. 24(In Chinese) [9] Yang Xinya, Zhang Liying, Liu Hongbo, Coal Ash China, Vol.4(2006), p. 10(In Chinese) [10] Guo Bin, Bian Jingfeng, Ren Ailing, Environmental Pollution & Control, Vol.7(2009), p. 1(In Chinese)
Online since: September 2012
Authors: Zhi Hua Sha, Yi Wang, Shao Xing Zhang, Sheng Fang Zhang
Mono-crystalline silicon is the typical substrate material in integrated circuits manufacturing, and machining precision and surface quality of the silicon wafer impacts on the quality and performance of the electronic products directly.
Acknowledgements The research was supported by Natural Science Foundation of Liaoning Province (No. 20081082 and No.201102021).
Gao: Chinese Journal of Mechanical Engineering, Vol. 40, 2004, p. 107 [3] J.Y.
Zhu: The Design of Feed System of Ultra-precision Grinding Machine Based on Virtual Prototyping Technology (Master dissertation of Dalian University of Technology, Dalian China 2008) [4] Information on http://www.adams.com [5] S.Q.Xie: Journal of Changchun Institute of Optics and Fine Mechanics, Vol. 16, 1993, p. 81
Acknowledgements The research was supported by Natural Science Foundation of Liaoning Province (No. 20081082 and No.201102021).
Gao: Chinese Journal of Mechanical Engineering, Vol. 40, 2004, p. 107 [3] J.Y.
Zhu: The Design of Feed System of Ultra-precision Grinding Machine Based on Virtual Prototyping Technology (Master dissertation of Dalian University of Technology, Dalian China 2008) [4] Information on http://www.adams.com [5] S.Q.Xie: Journal of Changchun Institute of Optics and Fine Mechanics, Vol. 16, 1993, p. 81
Online since: May 2011
Authors: Zi Yong Zhang, Bo Hua Feng
Experimental Section
Materials.
Chitosan Mw 120 kDa, 9.60 kDa, 578 kDa (refer with CS-0, CS-1 and CS-2 repectively) ,ricinoleic anhydride and sodium ricinoleic acid (refer with RA-Na) were prepared by polymers laboratory of deptment of materials Science and Engineering in Jinan University (Guangzhou, China), capsaicin was obtained from Guanglin Biomedical Co.
Prudhomme: Pest Management Science, Vol. 64 (2008), p. 808 [4] H.
Peppas: International Journal of Pharmaceutics, Vol. 6 (2002), p. 83 [10] L.
Zhou: Chinese Journal of New Drugs, Vol. 16 (2007), p. 543
Chitosan Mw 120 kDa, 9.60 kDa, 578 kDa (refer with CS-0, CS-1 and CS-2 repectively) ,ricinoleic anhydride and sodium ricinoleic acid (refer with RA-Na) were prepared by polymers laboratory of deptment of materials Science and Engineering in Jinan University (Guangzhou, China), capsaicin was obtained from Guanglin Biomedical Co.
Prudhomme: Pest Management Science, Vol. 64 (2008), p. 808 [4] H.
Peppas: International Journal of Pharmaceutics, Vol. 6 (2002), p. 83 [10] L.
Zhou: Chinese Journal of New Drugs, Vol. 16 (2007), p. 543
Online since: December 2012
Authors: Jun Li Li, Jian Lin Mao, Geng Yun Yin
Mixing Uniformity
Mixing refers to two or more materials mix in the external force, so that each component in the unit volume or unit weight distributes uniformly.
It can be seen from Table 4 that the mixing uniformity of tobacco products were improved significantly after the raw materials mixing process.
References SHI Yuewei, WANG Zhihong, WANG Yi, REN Xueliang, Analysis on the Main Chemical Components of Tobacco New Varieties, Journal of Anhui Agriculture Science, 36(25): 10958-10959, 2008.
DU Wen, TAN Xin1iang,YI Jianhua, SU Qingde, Evaluation of Leaf Tobacco Quality using Chemical Composition Data, Journal of Chinese Tobacco, 13(3):25-31, 2007.
Science Press, 2006, 6.
It can be seen from Table 4 that the mixing uniformity of tobacco products were improved significantly after the raw materials mixing process.
References SHI Yuewei, WANG Zhihong, WANG Yi, REN Xueliang, Analysis on the Main Chemical Components of Tobacco New Varieties, Journal of Anhui Agriculture Science, 36(25): 10958-10959, 2008.
DU Wen, TAN Xin1iang,YI Jianhua, SU Qingde, Evaluation of Leaf Tobacco Quality using Chemical Composition Data, Journal of Chinese Tobacco, 13(3):25-31, 2007.
Science Press, 2006, 6.
Online since: August 2012
Authors: Yuan Yuan Gao, Xiao Lin Yin, Guo Dong Ding
This has an important significance to control the irrigation water and survival rate of vegetation.
4) The experiment proves that slag isolation has great influence to water and salt movement of seashore saline ,we still need to make our effort to continue to test other materials, hoping to find more and better materials, both lesser investment and better effect, to improve the survival rate of saline-alkali plants.
5) The research of the influence law between objective factors such as sea surface height, groundwater and rainfall and salt and water movement should be pay more attention to, to make the salt and water movement in inshore saline more systematic and scientific.
References [1] Sheng Yunfei, “Growth Adaptability of Garden Trees in Saline-alkali Soil of Chongming Agriculture Orchard,” Journal of Nanjing Agricultural University, 2004
[2] Zhao Gengmao, Liu Zhaopu, “Simulation on water and salt movement in seashore saline soil under different rainfall intensities,” Journal of Nanjing Agricultural University, Vol. 26, 2003, pp. 51-54
[4] Wang Chunna, “Research progress of improvement of saline and alkaline land,” Protection Forest Science and Technology, Vol. 5, 2004, pp. 38-42
[10]Zhou Xun, Ruan Chuanxia, Fang Bin,“Fitting and Prediction of the Changes in Tide and Groundwater Levels in Coastal Aquifers,” Survey of science and technology, 2006, pp.10-13.
References [1] Sheng Yunfei, “Growth Adaptability of Garden Trees in Saline-alkali Soil of Chongming Agriculture Orchard,” Journal of Nanjing Agricultural University, 2004
[2] Zhao Gengmao, Liu Zhaopu, “Simulation on water and salt movement in seashore saline soil under different rainfall intensities,” Journal of Nanjing Agricultural University, Vol. 26, 2003, pp. 51-54
[4] Wang Chunna, “Research progress of improvement of saline and alkaline land,” Protection Forest Science and Technology, Vol. 5, 2004, pp. 38-42
[10]Zhou Xun, Ruan Chuanxia, Fang Bin,“Fitting and Prediction of the Changes in Tide and Groundwater Levels in Coastal Aquifers,” Survey of science and technology, 2006, pp.10-13.
Online since: November 2013
Authors: Xia Zhao
Relationship between Rebound Modulus and Seven- day Uncofined Compression Strength of Semirigid Base Coarse Materials[J].
Journal of Railway Science and Engineering. 2009,6(3): 560-60 [3] YUAN Wei, WANG Yonghe, QING Qixiang.
Investigation Science and Technology, 2009, 1:3-8
Science and Technology Information, 2006,5:74-75
Journal of Railway Science and Engineering. 2009,6(3): 560-60 [3] YUAN Wei, WANG Yonghe, QING Qixiang.
Investigation Science and Technology, 2009, 1:3-8
Science and Technology Information, 2006,5:74-75
Online since: July 2012
Authors: Lili Widarti Zainuddin, Norlida Kamarulzaman
Impedance Spectroscopy Study of LiTaO3 Powder Synthesized via Sol-gel Method
Lili Widarti Zainuddin1,2,a and Norlida Kamarulzaman1,2,b
1Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia
2Institute of Science, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia
aliliwidarti@yahoo.com, bnorlyk@salam.uitm.edu.my
Keywords: LiTaO3, Sol-gel, Conductivity
Abstract.
Introduction Lithium tantalum oxide or LiTaO3 has been widely known as a good material in electrical and optical applications such as sensors, LASERs, waveguides, detectors, modulators, holographic memory, electro-optic devices and other engineering devices [1-3].
The conductivity value of LiTaO3 at room temperature is 1.2004 x 10-10 S.cm-1 and the material exhibits an Arrhenius type characteristic with the main conducting species believed to be Li+.
Zahoor: Journal of Power Sources 165 (2007) 393-397
[9] F.H.Muhammad, N.R.A.Razak, R.H.Y Subban, Tan Winie, A.K.Arof: Solid State Science and Technology, Vol. 18, No 1 (2010) 44-52 (ISSN 0128-7389)
Introduction Lithium tantalum oxide or LiTaO3 has been widely known as a good material in electrical and optical applications such as sensors, LASERs, waveguides, detectors, modulators, holographic memory, electro-optic devices and other engineering devices [1-3].
The conductivity value of LiTaO3 at room temperature is 1.2004 x 10-10 S.cm-1 and the material exhibits an Arrhenius type characteristic with the main conducting species believed to be Li+.
Zahoor: Journal of Power Sources 165 (2007) 393-397
[9] F.H.Muhammad, N.R.A.Razak, R.H.Y Subban, Tan Winie, A.K.Arof: Solid State Science and Technology, Vol. 18, No 1 (2010) 44-52 (ISSN 0128-7389)