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Online since: September 2016
Authors: Aleksey N. Shapovalov, S.P. Nefedyev, R.R. Dema
Shapovalov, The production of high quality sinter at the sintering plant JSC Ural Steel, Science and production in the Urals. 2 (2006) 31-34
Nakano, Improvement of granulation of raw materials with water soluble polymer, Zairyo to Prosesu - Current Advances in Materials and Processes. 4 (2003) 911
Bezdeschsky, Agglomeration of ore materials, Scientific edition, Ural State Technical University, Ekaterinburg, 2003
Zavalishchin, Carbide transformations in tempering of complexly alloyed white cast iron, Metal Science and Heat Treatment. 5 (2015)
Pelletizing, Steel mill desulfuration slag, International Journal of Mineral Processing. 3-4 (2002) 165-175.
Online since: December 2010
Authors: Zi Rong Tang, M.Rizwan Malik, Tie Lin Shi, Shi Yuan Liu, M. Haseeb
Buchheit, “Testing of critical features of polysilicon MEMS in de Boer”, Materials Science of Microelectromechanical System (MEMS) Devices II, 19-24 (2000) [4] A.
Breder, "Probabilistic strength of {111} n-type silicon", Journal of Materials Science: Materials in Electronics, 11 (2000) 291-303 [5] K.
Enright, "Probabilistic engineering analysis using the NESSUS software," Structural Dynamics, and Materials Conference and Exhibit, 1-12 (2000) [10] P.
Nix, "Measurement of mechanical properties in small dimensions by microbeam deflection,” Materials Research Society Symposium - Proceedings, 518 (1998) 39-44 [17] N.
Kim, “Measurement of mechanical properties for MEMS materials," Measurement Science & Technology, 10 (1999) 706-16 [20] R.
Online since: February 2011
Authors: Li Feng Qu, Wen Tong Xin, Yong Sheng Wu, Zhi Zun Li
By this technique, metal materials could be welded on the condition of no electricity, no gas and no equipments.
Since the energy for welding comes from SHS reaction, the materials for making the combustion welding rod must be capable of taking part in SHS reaction with abundant heat produced.
Appropriate slagging and alloying elements were added, and the powders through 300 mesh were mixed homogeneously in the three-dimensional materials-mixing machine.
Metal materials can be welded on the condition of no electricity, no gas and no equipments
[3] Li Zhizun, Xin Wentong: Transactions of the China welding institution(In Chinese), Vol. 28 (2007), p. 79 [4] E.A.Levashov, O.V.Malochkin: Journal of Materials Synthesis and Processing, Vol. 10 (2003), p.554~557
Online since: August 2009
Authors: Mahmood Aliofkhazraei, Alireza Sabour Rouhaghdam
Relationship Study among Nanocrystallite Distribution and Roughness of a Nanostructured Hard Layer M.Aliofkhazraei, A.Sabour Rouhaghdam* Department of Materials Engineering, Faculty of Engineering, Tarbiat Modares University, PO Box 14115-143, Tehran, Iran sabour01@gmail.com *corresponding author Keywords: Crystal Structure, Electron Microscopy, Microstructure, Nanostructures, Plasma Deposition Abstract Up to the fourth moment distributions of carbide nanocrystallites, produced by duplex treatments of surface nanocrystallization and pulsed plasma electrolytic carburizing on AISI316 stainless steel, were investigated to high precision by means of figure analysis.
Materials and treatments A set of samples was machined from a Ø20mm rod of AISI316 austenitic stainless steel.
References [1] T.Bacci, F.Borgioli, E.Galvanetto, G.Pradelli: Surface and Coatings Technology, 2001, 139, 251 [2] C.Jiang, E.I.Meletis: Journal of Applied Physics, 2000, 88, 4026 [3] X.Xu, Z.Yu, L.Wang, J.Qiang, Z.Hei: Surface and Coatings Technology, 2003, 162, 242 [4] N.Renevier, P.Collignon, H.Michel, T.Czerwiec: Surface and Coatings Technology, 1999, 111, 128 [5] G.A.Collins, R.Hutchings, K.T.Short, J.Tendys, X.Li, M.Samandi: Surface and Coatings Technology, 1995, 74-75, 417 [6] C.Blawert, B.L.Mordike, Y.Jiraskova, O.Schneeweiss: Surface Engineering, 1999, 6, 469 [7] S.Parascandola, R.Gunzel, R.Grotzschel, E.Richter, W.Moller: Nuclear Instruments and Methods B, 1998, 136-138, 1281 [8] M.Aliofkhazraei, S.H.H.Mofidi, A.Sabour Rouhaghdam, E.Mohsenian: Journal of Thermal Spray Technology, 2008, 17, 323 [9] M.Aliofkhazraei, A.Sabour Rouhaghdam, A.Heydarzadeh: Materials Characterization, 2009, 60, 83 [10] K.Lu, J.Lu: Materials Science and Engineering A, 2004
, 375-377, 38 [11] K.Lu: Materials Science and Engineering R, 1996, 16, 161 [12] M.Aliofkhazraei, A.Sabour Rouhaghdam: Electrochemistry Communications, 2007, 9, 2686
Online since: March 2015
Authors: Li Bin Guo, Meng Guo, Feng Long Yao, Yun Fei Duan
Introduction Laser micromachining is one of the modern precision machining methods, especially in the rapid development in difficult machined materials.
The solid pulsed laser processing can directly machine and mill materials with high hardness, high strength, and high brittleness, which is a promising micro machining method.
In the process, due to thermal effect of the laser beam, the radiation area of the solid material is melted or gotten gasification in a short time, and the material leave the machined surface in the way of gas and liquid.
Equipments and materials The specimen chooses alloy steel (grade: 65Mn) and stainless steel (grade: SUS301), and JQM-1GY-120 laser machine (Nd:YAG) is used, as shown in Fig 3.
Journal of huazhong university of science and technology [J], 2003, 26
Online since: June 2009
Authors: Fu Lei Chu, Zhi Peng Feng, Ru Jiang Hao
Defects Diagnosis of Bearing by Means of Acoustic Emission and Continuous Wavelet Transform Rujiang Hao1,a, Zhipeng Feng2,b , Fulei Chu3,c 1 Department of Mechanical Engineering, Shijiazhuang Railway Institute, Shijiazhuang 050043, China 2 Institute of Vehicular Engineering, University of Science and Technology Beijing, Beijing, 100083, China 3 Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China a h_rujiang@126.com, bzhipeng.feng@yahoo.com, cchufl@mail.tsinghua.edu.cn Keywords: acoustic emission, continuous wavelet transform, signal purification, defect diagnosis Abstract.
Particles inside martial (atoms, molecules and particle swarm) will generate elastic waves from the transient release of strain energy as a result of the relative motion inside the materials.
AE is defined as transient elastic waves generated from a rapid release of strain energy caused by a deformation or damage within or on the surface of a material [1].
Acknowledgments The authors gratefully acknowledge the financial support of Natural Science Foundation of China (50425516, 10732060 and 50705007), Natural Science Foundation of Hebei Province (E2007000649) and Scientific Research Foundation for Returned Overseas Chinese Scholars.
Chen: Mechanical Systems and Signal Processing Vol.16 (2002), p. 447 [5] LIN Jing, QU Liangsheng: Journal of Sound and vibration Vol. 234 (2000), p.135 [6] PENG Zhike: Application of wavelet analysis in diagnostics of rotate machinery, doctor dissertation, Tsinghua University, 2002 [7] CHEN Guoliang, WANG Xufa, ZHUANG Zhenquan: Genetic Algorithm and Its Applications ( People's Post & Telecommunications Publishing House, Beijing,1996) [8] YU Lei, CHEN Xumei, GENG Yanbin et al: Journal of Tsinghua University (Science and Technology) Vol. 44 (2004), p.793 [9] D.L.
Online since: January 2022
Authors: Hongseok Jang, Yongtaek Lim, Seongyoung So, Ji Jon Kang
Advances in technology have made new building materials available, but pollutants from such materials may have more adverse effects on indoor environments with low ventilation [1].
Materials and Methods Degree of Dispersion The loess collected in Hongcheon, South Korea, was used (Fig. 1).
Pye., The nature, origin and accumulation of loess, Quaternary Science Reviews 14(7) 2005 653-667
Yoon., The Evaluation of Durability Performance in Mortar Curbs Containing Activated Hwangtoh, Journal of the Korean Recycled Construction Resources Institute 8(4) 2020 520-527
[17] H. van Olphen., An Introduction to Clay Colloid Chemistry, Soil Science 97(4) (1964) 290
Online since: August 2013
Authors: De Fa Zhang, Yi Cong Gao
Automatic stop and cut bottom, side line), with cutter sewing machine; from the use of, it has a sewing tents, seat cushions, bags, belts and other thick material type, special purpose machine body, thin seam material and material models. 2 The industrial sewing machine structure and characteristics of an AC servo system Industrial sewing machine servo system working principle is through the pedal board to control the motor running, the drive and driven by a belt shaft, crank slide mechanism, make the thread-taking-up mechanism and feeding mechanism, complete the sewing process.
The power conversion efficiency of the system and large torque output enable sewing machine with short-term overload capacity of 3 - 4 times, can penetrate the 4 layers of 0.8mm leather, thin material, thick material is good, it is a multifunctional. 3 Simulation design and development three, industrial sewing machine motion system To meet the servo motor profile and mechanism is connected, the cam follower mechanism, groove follower or a gear pair connection request, simulation of mechanism motion.
Acknowledgments: This work was supported by the Science and Technology Project of Zhejiang Province (approval no. 2012C21045).
Journal of electric machines and control, 2003 02
Huazhong University of Science and Technology, 2011.
Online since: August 2010
Authors: Sheng Li Wang, Hui Lai Mu, Zhen Xia Li, Wen Zhong Xu, Xia Xiang
When the concentration reaches a certain value, it adsorbed the surface of the material, impeded the chemical reaction, and then delayed for polishing.
The higher the concentration of surfactant, the more inadequate the slurry contacts with the material, and the lower the removal rate.
Acknowledgements This work supported by the Natural Science Foundation of Hebei Province, China ( No.
E2010000077)and Science and Research Project for Education Office of Hebei Province, China (No.2007429).
Chinese Journal of Semiconductors. 12(2004), p.1726-1729 [2] Huang Bo: Solid Material and it's Applications.
Online since: February 2006
Authors: Lin Geng, Hong Mei Wei, Xue Xi Zhang
Zhang 1,c 1 School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P.R.
The objective of this paper is to investigate the solidification processing of SiCw/Al-18Si composite, concentrating on the use of SEM and TEM to investigate the nucleation of Si phase, and the use of DSC to compare the processing conditions to characterize the resulting material microstructure.
Surappa: Journal of Materials Processing Technology Vol. 63 (1997), p. 325-333 [4] C.R.
Cantor: Proceedings: Mathematical, Physical and Engineering Science Vol. 452 (1996), p. 2141-2160 Fig.5 SEM photographs of Al-Si eutectic in the SiCw/Al-18Si composites, (a) C1, (b) C2 a) E) Fig.4 SEM photographs of primary Si in the SiCw/Al-18Si composites, (a) C1, (b) C2 a) E)