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Online since: April 2011
Authors: Zhen An Tang, Yan Bing Xue
Due to the high hardness and very stable chemical properties, it is difficult to micro-process ceramic materials.
Laser machining provides a material removal method that is non-contact, with no tool wear, and no cutting force.
TANG: Journal of Optoelectronics·Laser, Vol. 20 (2009), p. 725 [8] M.
Jian: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 199, (2003), p. 332 [12] T.
Zak: Journal of Materials Processing Technology, Vol. 189, (2007), p. 409 [13] Ch.P.
Laser machining provides a material removal method that is non-contact, with no tool wear, and no cutting force.
TANG: Journal of Optoelectronics·Laser, Vol. 20 (2009), p. 725 [8] M.
Jian: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 199, (2003), p. 332 [12] T.
Zak: Journal of Materials Processing Technology, Vol. 189, (2007), p. 409 [13] Ch.P.
Online since: June 2014
Authors: Levent Trabzon, Huseyin Kizil, Omid Tayefeh Ghalehbeygi, Laurent Francis
Introduction
In recent decades, MEMS devices have evolved several branches of science and industry, pressure sensors, magnetometers, switches [1, 2].
Electron mobility in polysilicon is an order of magnitude less than in single crystalline materials, 10 to 50 cm2/Vs.
Micro-bridges and cantilevers were obtained in SOI-Si case by modifying cleaning process and etching regime of different layers of materials.
Shafai, "A resonant micromachined magnetic field sensor," Sensors Journal, IEEE, vol. 7, pp. 1326-1334, 2007
Horsley, "Parametrically Amplified Z-Axis Lorentz Force Magnetometer," Microelectromechanical Systems, Journal of, vol. 20, pp. 702-710, 2011
Electron mobility in polysilicon is an order of magnitude less than in single crystalline materials, 10 to 50 cm2/Vs.
Micro-bridges and cantilevers were obtained in SOI-Si case by modifying cleaning process and etching regime of different layers of materials.
Shafai, "A resonant micromachined magnetic field sensor," Sensors Journal, IEEE, vol. 7, pp. 1326-1334, 2007
Horsley, "Parametrically Amplified Z-Axis Lorentz Force Magnetometer," Microelectromechanical Systems, Journal of, vol. 20, pp. 702-710, 2011
Online since: July 2012
Authors: Lin Yao, Li Li Yu
It is readily available and relatively inexpensive and could not bring any toxicity and biodegradability problems which are usually related to the usage of synthetic materials [2].
Materials and methods A.Materials Soluble starch was from Junle Chemical Co.
Span-60, Tween-60, N,N'-methylene- bis-acrylamide(MBAA), potassium persulfate (K2S2O8) and all other materials were from Kermel Chemical Co.
International Journal of Pharmaceutics.
Journal of Microencapsulation.
Materials and methods A.Materials Soluble starch was from Junle Chemical Co.
Span-60, Tween-60, N,N'-methylene- bis-acrylamide(MBAA), potassium persulfate (K2S2O8) and all other materials were from Kermel Chemical Co.
International Journal of Pharmaceutics.
Journal of Microencapsulation.
Online since: October 2014
Authors: Jun Wang, Bao Ying Yu, Long Yang, Yu Xin Gao, Jia Yu Xiang
By analysis technique of scanning electron microscopy (SEM) and X-ray diffraction (XRD) to explore on the effect of the hydration products of SSC.
2 Specimens, materials and mix
Home-made SSC was used in this paper, silica fume and microbead is produced by Gui zhou Haitian ferroalloy abrasive co., LTD and Yun nan, respectively.
The chemical compositions of three kinds of materials were shown in table 1.
Hydration products of SSC mainly ettringite and gypsum crystals, trace amounts of calcium hydroxide and a small amount of materials such as gypsum that does not participate in the reaction ,it does not observe obvious characteristic peak of calcium hydroxide in SSC paste .
Beads and silica fume, fly ash hydration activity of contrast study [J], journal of wuhan university of science and technology, in March 2011, 33 (3) : 54 ~ 58
The influence of temperature and different storage conditions on the stability of supersulphted cement[J], Journal of Thermal Analysis, 1994,41:687–699.
The chemical compositions of three kinds of materials were shown in table 1.
Hydration products of SSC mainly ettringite and gypsum crystals, trace amounts of calcium hydroxide and a small amount of materials such as gypsum that does not participate in the reaction ,it does not observe obvious characteristic peak of calcium hydroxide in SSC paste .
Beads and silica fume, fly ash hydration activity of contrast study [J], journal of wuhan university of science and technology, in March 2011, 33 (3) : 54 ~ 58
The influence of temperature and different storage conditions on the stability of supersulphted cement[J], Journal of Thermal Analysis, 1994,41:687–699.
Online since: September 2013
Authors: Jie Xiao, Wei Min Qi
Semiconductor sources degradation occurs through the properties of semiconductor materials or the materials used for the fabrication.
Different types of materials and packages of LEDs have different degradation mechanisms.
Various approximate formulae’s have been reported based on different materials and the structure.
Kwark, “High-current electro-optical degradation of InGaN/GaN light emitting diodes fabricated with Ag-base reflector”, Journal of Korean Physical Society, vol.55, 2009, pp. 1128–1131
Shin, “Electrical, optical and thermal degradation of high power GaN/ In GaN light emitting diodes”, Journal of Physics D: Applied Physics, 2008
Different types of materials and packages of LEDs have different degradation mechanisms.
Various approximate formulae’s have been reported based on different materials and the structure.
Kwark, “High-current electro-optical degradation of InGaN/GaN light emitting diodes fabricated with Ag-base reflector”, Journal of Korean Physical Society, vol.55, 2009, pp. 1128–1131
Shin, “Electrical, optical and thermal degradation of high power GaN/ In GaN light emitting diodes”, Journal of Physics D: Applied Physics, 2008
Online since: May 2015
Authors: R.O. Ocaya
King and G.J.Yates: Gamma ray spectrometer readout with linear CCD sensor, IEEE Transactions on Nuclear Science, 39 (5), pp. 1336-1340. (1992)
Wang: Near-infrared spectrometer optical sensor driving and peripheral circuit design, Applied Mechanics and Materials, 2nd International Conference on Industrial Design and Mechanics Power, ICIDMP 2013, Vol. 437 pp. 674-677 (2013)
Fang: Design of a High-Speed Image Data Real-Time Storage and Display Circuit, Advanced Materials Research, 912-914, 1222. http://dx.doi.org/10.4028/www.scientific.net/AMR.912-914.1222 (2014)
Yang: Design of spectral acquisition system based on the linear array CCD ILX554B, Applied Mechanics and Materials, 2014 International Conference on Mechatronics Engineering and Computing Technology, ICMECT 2014, Vol. 556-562, pp. 1926-1931 Code 105616. (2014)
Xu: Data acquisition for output signal of linear CCD, Applied Mechanics and Materials, 2011 - 3rd International Conference on Mechanical and Electronics Engineering, Vol. 130-134 pp. 2056-2059, ICMEE Hefei, China; 23-25 Code 87364. (2012)
Wang: Near-infrared spectrometer optical sensor driving and peripheral circuit design, Applied Mechanics and Materials, 2nd International Conference on Industrial Design and Mechanics Power, ICIDMP 2013, Vol. 437 pp. 674-677 (2013)
Fang: Design of a High-Speed Image Data Real-Time Storage and Display Circuit, Advanced Materials Research, 912-914, 1222. http://dx.doi.org/10.4028/www.scientific.net/AMR.912-914.1222 (2014)
Yang: Design of spectral acquisition system based on the linear array CCD ILX554B, Applied Mechanics and Materials, 2014 International Conference on Mechatronics Engineering and Computing Technology, ICMECT 2014, Vol. 556-562, pp. 1926-1931 Code 105616. (2014)
Xu: Data acquisition for output signal of linear CCD, Applied Mechanics and Materials, 2011 - 3rd International Conference on Mechanical and Electronics Engineering, Vol. 130-134 pp. 2056-2059, ICMEE Hefei, China; 23-25 Code 87364. (2012)
Online since: October 2015
Authors: Eva Rykalová, Radek Fabian, Zdeněk Peřina, Petr Jonšta
Ladle consists of steel shell and is lined by refractory material which must to resist very high temperature.
In the case of the long-term local overheating of certain place and the cooling is not sufficient with the regard to the material properties of the used material and it may result in its damage and destruction.
Material of the ingot mold affects the rate of solidification of steel ingot and thus its final quality [5].
International Journal of Civil and Environmental Engineering, 2013, roč. 35, č. 2, s. 1181-1191
In Archives of Materials Science and Engineering, 2012, Volume 58, Issue 1, p. 22-27, ISSN 1897-2764 [6] SMETANA B., ŽALUDOVÁ M., TKADLEČKOVÁ M., DOBROVSKÁ J., ZLÁ S., GRYC K., KLUS P., MICHALEK K., MACHOVČÁK P., ŘEHÁČKOVÁ L.: Experimental verification of hematite ingot mould heat capacity and its direct utilisation in simulation of casting proces.In Journal of Thermal Analysis and Calorimetry, 2013, Vol. 111, ISSN: 1388-6150 (Print), ISSN: 1572-8943 (online).
In the case of the long-term local overheating of certain place and the cooling is not sufficient with the regard to the material properties of the used material and it may result in its damage and destruction.
Material of the ingot mold affects the rate of solidification of steel ingot and thus its final quality [5].
International Journal of Civil and Environmental Engineering, 2013, roč. 35, č. 2, s. 1181-1191
In Archives of Materials Science and Engineering, 2012, Volume 58, Issue 1, p. 22-27, ISSN 1897-2764 [6] SMETANA B., ŽALUDOVÁ M., TKADLEČKOVÁ M., DOBROVSKÁ J., ZLÁ S., GRYC K., KLUS P., MICHALEK K., MACHOVČÁK P., ŘEHÁČKOVÁ L.: Experimental verification of hematite ingot mould heat capacity and its direct utilisation in simulation of casting proces.In Journal of Thermal Analysis and Calorimetry, 2013, Vol. 111, ISSN: 1388-6150 (Print), ISSN: 1572-8943 (online).
Online since: June 2014
Authors: Hai Jun Xie
Although the fertilizer application is indirectly affected by the output of fertilizer raw materials through the fertilizer output, it reflected the importance of productive resources from one side (the factor of raw material price is not considered, because the price fluctuation is reflected by time-point data which is inconvenient for analysis, and it is inconvenient to collect historical data).
The closed condition refers to investigating the influence degree of changes in correlative factors on fertilizer application Y without considering the price fluctuation of raw materials on the international market, the import volume and the price fluctuation of fertilizers on the international market, mainly considering X1: the fertilizer price index, X2: the fertilizer output, and X3: the fertilizer application in the first lag period.
(In Chinese) [2] Chen Tongbin, Chen Shiqing and Xu Hongtao:Geography Journal, Vol53 (1)(1998),p. 32-41.
(In Chinese) [4] Zhang Linxiu and Xu Xiaoming: Journal of Agro-technical Economic, 1996 (4): 27-32.
(In Chinese) [7] Huang Jikun and Zhang Linxiu:Agricultural Science and Technology Investment and Economy in China.
The closed condition refers to investigating the influence degree of changes in correlative factors on fertilizer application Y without considering the price fluctuation of raw materials on the international market, the import volume and the price fluctuation of fertilizers on the international market, mainly considering X1: the fertilizer price index, X2: the fertilizer output, and X3: the fertilizer application in the first lag period.
(In Chinese) [2] Chen Tongbin, Chen Shiqing and Xu Hongtao:Geography Journal, Vol53 (1)(1998),p. 32-41.
(In Chinese) [4] Zhang Linxiu and Xu Xiaoming: Journal of Agro-technical Economic, 1996 (4): 27-32.
(In Chinese) [7] Huang Jikun and Zhang Linxiu:Agricultural Science and Technology Investment and Economy in China.
Online since: December 2010
Authors: A. Sheikholeslam, J. Rassizadehghani, Mahmoud Nili-Ahmadabadi
Nili Ahmadabadi, J.Rassizadehghani
Department of Metallurgy and Materials Engineering, University of Tehran
Ata.mat12@yahoo.com, nili@ut.ac.ir, j.ghani@ut.ac.ir
Keywords: Ductile Iron; Segregation; Partial Melting Homogenization; ADI; Mechanical Properties
Abstract.
Materials and Procedure Ductile iron ingots were melted in a medium frequency induction furnace and cast in CO2 sand moulds.
Janowak., "Review of austempered ductile iron metallurgy", Journal of Heat Treating, 1984, Vol. 1, pp 1-12
Mosallaiee-Pour, "Homogenization of ductile iron using partial melting aided by modeling", Materials Science and Engineering A, 2004, Vol. 373, pp. 309- 314 [8] G.R.
Morral,"Transient Liquid-phase Bonding in Two Phase Ternary Systems", Metallorgical and Materials Transactions A, April, 2000, Vol.31A,pp.11871192
Materials and Procedure Ductile iron ingots were melted in a medium frequency induction furnace and cast in CO2 sand moulds.
Janowak., "Review of austempered ductile iron metallurgy", Journal of Heat Treating, 1984, Vol. 1, pp 1-12
Mosallaiee-Pour, "Homogenization of ductile iron using partial melting aided by modeling", Materials Science and Engineering A, 2004, Vol. 373, pp. 309- 314 [8] G.R.
Morral,"Transient Liquid-phase Bonding in Two Phase Ternary Systems", Metallorgical and Materials Transactions A, April, 2000, Vol.31A,pp.11871192
Online since: January 2013
Authors: Wen Da Zhang, Jing Yang, Jing Zhi Dang, Yun Liu, Hong Xu
Effects of Si, Cu and Mg on the high-temperature mechanical properties of Al-Si-Cu-Mg alloy
Zhang Wenda1,a, Yang Jing , Dang Jingzhi, Liu Yun, Xu Hong
1School of Materials Science and Engineering, North University of China, Taiyuan 030051, China.
Materials and Methods An orthogonal L9 (34) table header was used in this study.
Influence of additives on the microstructure and tensile properties of near-eutectic Al–10.8%Si cast alloy, Materials and Design. 30 (2009) 3943–3957
Shabestari, H Moemeni, Effect of copper and solidification conditions on the microstructure and mechanical properties of Al–Si–Mg alloys, Journal of Materials Processing Technology. 153–154 (2004) 193-198
[7] Shengquan Dong, Jingen Zhou, Wen Yan, et al., Effects of Si, RE and Ti on hot cracking tendency of as-cast Al-Cu alloys (in chinese), The Chinese Journal of Nonferrous Metals. 12 (2002 Al Special) 80-84
Materials and Methods An orthogonal L9 (34) table header was used in this study.
Influence of additives on the microstructure and tensile properties of near-eutectic Al–10.8%Si cast alloy, Materials and Design. 30 (2009) 3943–3957
Shabestari, H Moemeni, Effect of copper and solidification conditions on the microstructure and mechanical properties of Al–Si–Mg alloys, Journal of Materials Processing Technology. 153–154 (2004) 193-198
[7] Shengquan Dong, Jingen Zhou, Wen Yan, et al., Effects of Si, RE and Ti on hot cracking tendency of as-cast Al-Cu alloys (in chinese), The Chinese Journal of Nonferrous Metals. 12 (2002 Al Special) 80-84