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Online since: July 2006
Authors: Bo Zhao, Y.P. Ma, Ming Chen, Dao Hui Xiang
Ultrasonic vibration will change ductile domain removal mode of hard brittle
material, and enlarge machining range of ductile domain which makes high efficient ultraprecise
machining of nano ceramics material simple and feasible.
The material of the workpiece is nano ZrO2 ceramics.
Acknowledgments Supported by the National Natural Science Foundation of China (No. 50475026, and No.50275095).
Li and et al: Journal of Materials Processing Technology, Vol.116 (2001), pp.165
Hollstein: Machining of Advanced Materials, Vol.847 (1993), pp.235
The material of the workpiece is nano ZrO2 ceramics.
Acknowledgments Supported by the National Natural Science Foundation of China (No. 50475026, and No.50275095).
Li and et al: Journal of Materials Processing Technology, Vol.116 (2001), pp.165
Hollstein: Machining of Advanced Materials, Vol.847 (1993), pp.235
Online since: August 2006
Authors: Mauricio J. Monteiro, F.C. Rizzo
Rizzo
Department of Materials Science and Metallurgy, PUC-Rio, Rua Marquês de São Vicente
225, Gávea, Rio de Janeiro, CEP: 22453-900, Brasil
mauricio@dcmm.puc-rio.br, rizzo@dcmm.puc-rio.br
Keywords: Oxidation; high-speed steel; thermobalance; dry and moist environments.
In general, HSS shell materials are based on combinations of carbon, chromium, vanadium, molybdenum, tungsten and sometimes niobium and cobalt.
It is well known that the oxidation behavior of the metallic materials depends on the chemical composition and the microstructure.
Kofstad: Corrosion science, Vol. 17 (1997), p.237
Meussner: Journal of Electrochemical Society, Vol.12 (1963), p.1195
In general, HSS shell materials are based on combinations of carbon, chromium, vanadium, molybdenum, tungsten and sometimes niobium and cobalt.
It is well known that the oxidation behavior of the metallic materials depends on the chemical composition and the microstructure.
Kofstad: Corrosion science, Vol. 17 (1997), p.237
Meussner: Journal of Electrochemical Society, Vol.12 (1963), p.1195
Online since: April 2020
Authors: Ragil Widyorini, Tibertius Agus Prayitno, Tamaryska Setyayunita, Erlina Nurul Aini
When used two different materials as adhesive for particleboard, composition ratio and press temperature are an important factor in board production [4, 14].
Experimental Section Materials.
The materials were then dried at 60 °C overnight and powdered using a mill machine.
Prayitno, Manufacture and properties of citric acid bonded particleboard made from bamboo materials, Eur.
Ragadhita, How to read and interpret FTIR spectroscope of organic material, Indonesian Journal of Science & Technology 4 (2019) 97-118
Experimental Section Materials.
The materials were then dried at 60 °C overnight and powdered using a mill machine.
Prayitno, Manufacture and properties of citric acid bonded particleboard made from bamboo materials, Eur.
Ragadhita, How to read and interpret FTIR spectroscope of organic material, Indonesian Journal of Science & Technology 4 (2019) 97-118
Online since: March 2007
Authors: Masao Takeyama
NOVEL CONCEPT OF AUSTENITIC HEAT RESISTANT STEELS
STRENGTHENED BY INTERMETALLICS
Masao Takeyama
Department of Metallurgy and Ceramics Science
Tokyo Institute of Technology
S8-8, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552
e-mail: takeyama@mtl.titech.ac.jp
Keywords: Fe2Nb Laves phase, Fe-Ni-M ternary phase equilibria, Lattice parameters, Axial ratio,
Precipitation morphology
Abstract.
Masuyama: Report of JSPS 123rd Committee on Heat-Resisting Materials and Alloys, 38 (1997), p.211 [2] M.
Matsuo: Journal of Materials Processing Technology (Proceedings of THERMEC'2000) 117, 3 (2001).
Takeyama: Report of JSPS 123rd Committee on Heat-Resisting Materials and Alloys, 46 (2005), p.25 [10] B.
Abe: Report of JSPS 123rd Committee on Heat-Resisting Materials and Alloys, 47 (2006), p.31 [13] H.
Masuyama: Report of JSPS 123rd Committee on Heat-Resisting Materials and Alloys, 38 (1997), p.211 [2] M.
Matsuo: Journal of Materials Processing Technology (Proceedings of THERMEC'2000) 117, 3 (2001).
Takeyama: Report of JSPS 123rd Committee on Heat-Resisting Materials and Alloys, 46 (2005), p.25 [10] B.
Abe: Report of JSPS 123rd Committee on Heat-Resisting Materials and Alloys, 47 (2006), p.31 [13] H.
Online since: November 2011
Authors: Gen Yuan Zhang, Dan Xia Lv, Guan Xing Zhao, Fei Zuo
Introduction
Physical and chemical properties of polycrystalline metal materials depend on the materials’ composition as well as the grain’s size and structure in the grain growth process. 2D Monte Carlo (MC) was taken attention to and got application soon after it was taken out.
The MC, CA simulation research are rarely seen now in the process of polycrystalline materials grain nucleation and growth with actual grain degree in solid-state phase transformation.
GA was used in this paper to simulate the process of γFe → αFe grain nucleation and growth in the polycrystalline materials of same-composition non-synergistic growth with actual grain degree at isothermal solid-state transformation.
Liu, et al: Journal of Shandong University: Engineering Science, 2005; 35(6): 24 [3] G.Y.
The MC, CA simulation research are rarely seen now in the process of polycrystalline materials grain nucleation and growth with actual grain degree in solid-state phase transformation.
GA was used in this paper to simulate the process of γFe → αFe grain nucleation and growth in the polycrystalline materials of same-composition non-synergistic growth with actual grain degree at isothermal solid-state transformation.
Liu, et al: Journal of Shandong University: Engineering Science, 2005; 35(6): 24 [3] G.Y.
Online since: August 2013
Authors: Sheng Wu
Non-linear static analysis, including both material and geometric non-linearity, were used to obtain the load carrying capacity.
Material properties: A simplified bilinear stress-strain curve with strain hardening was used.
The ultimate stress of DS-L1500 member always reaches about 220MPa and almost approaches the material yielding stress, in which the load carrying capacity may be controlled by the material yielding strength.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (Grant No.51008054) and the Fundamental Research Funds for the Central Universities (Grant No.
Journal of Structural Engineering. 1997, 123(11):1535~1543 [4] E.M.A.El-Kassas, R.I.Mackie, A.I.El-Sheikh.
Material properties: A simplified bilinear stress-strain curve with strain hardening was used.
The ultimate stress of DS-L1500 member always reaches about 220MPa and almost approaches the material yielding stress, in which the load carrying capacity may be controlled by the material yielding strength.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (Grant No.51008054) and the Fundamental Research Funds for the Central Universities (Grant No.
Journal of Structural Engineering. 1997, 123(11):1535~1543 [4] E.M.A.El-Kassas, R.I.Mackie, A.I.El-Sheikh.
Online since: November 2011
Authors: Xiao Lan Liu, Juan Kun Zhang, Xi Qun Zheng
II.Materials and Methods
A.
Materials and chemicals Bovine fibrinogen, agarose were purchased from Sigma Chemical Co.
The effect of nitrogen source on production of fibrinolytic activity, as shown in Table 1, indicated that soybean cake powder, soybean powder and hydrolysate of soybean by limited hydrolysis were proper materials for production of the enzyme by Coprinus comatus YY-20.
That soybean protein was used as materials for production of fibrinolytic enzymes by microorganism was also reported by several research groups [1,4,5,6,7,8,11,20].
Park, et al, “A fibrinolytic enzyme from the medicinal mushroom Cordyceps militaris,” The Journal of Microbiology, vol. 44, no. 6, pp. 622-631, December 2006
Materials and chemicals Bovine fibrinogen, agarose were purchased from Sigma Chemical Co.
The effect of nitrogen source on production of fibrinolytic activity, as shown in Table 1, indicated that soybean cake powder, soybean powder and hydrolysate of soybean by limited hydrolysis were proper materials for production of the enzyme by Coprinus comatus YY-20.
That soybean protein was used as materials for production of fibrinolytic enzymes by microorganism was also reported by several research groups [1,4,5,6,7,8,11,20].
Park, et al, “A fibrinolytic enzyme from the medicinal mushroom Cordyceps militaris,” The Journal of Microbiology, vol. 44, no. 6, pp. 622-631, December 2006
Online since: October 2014
Authors: Chao Wei Zhang, Ying Xin Xu, Shi Ying Yang, Sa Sa Ma
It is a great conflict. 3) The quick equipment’s renewal speed, insufficient security personnel ability, scarce repair materials and battle damage assessment, all bring difficulties and obstacles for equipment’s repair.
The fifth level of standard solution can also be considered to have strong constraints on introducing and interaction of new material.
Design problems of waveguide connecting element, manufacturing problems of waveguide connection element and the waveguide material; How to make these obstacles disappear?
Improving design, and looking for standard materials; If anyone has solved a similar problem?
Journal of Huaihai Institute of Technology (Natural Science Edition) (2011).
The fifth level of standard solution can also be considered to have strong constraints on introducing and interaction of new material.
Design problems of waveguide connecting element, manufacturing problems of waveguide connection element and the waveguide material; How to make these obstacles disappear?
Improving design, and looking for standard materials; If anyone has solved a similar problem?
Journal of Huaihai Institute of Technology (Natural Science Edition) (2011).
Online since: June 2006
Authors: S. Balevičius, M.J. Löffler, N. Žurauskienė, A. Kačeniauskas, R. Kačianauskas, E. Stupak, J. Novickij, V. Stankevič, P. Cimmperman
Goštauto 11, Vilnius, Lithuania
3
Dep. of Physics, Vilnius Gediminas Technical University, Saul÷tekio 11, Vilnius, Lithuania
4
Dep. of Strength of Materials, Vilnius Gediminas Technical University, Saul÷tekio 11 Vilnius,
Lithuania
5
Parallel Computing Lab, Vilnius Gediminas Technical University, Saul÷tekio 11, Vilnius, Lithuania
6
University of Applied Sciences Gelsenkirchen, Energy Institute, Gelsenkirchen,
Neidenburger Strasse 10, D-45897, Germany
a
jurij.novickij@el.vtu.lt, bwstan@pfi.lt, csbal@pfi.lt, dzurausk@pfi.lt, epetrasc@ pfi.lt,
f
rimantas.kacianauskas@fm.vtu.lt, garnka@fm.vtu.lt, hm.j.loeffler@onlinehome.de
Keywords: electromagnetic launcher, actuator, manganite sensor, magnetic field measurements
Abstract.
Secondly, the force which is the result of magnetization of ferromagnetic material propels it to the center of the coil.
In order to perform numerical calculations in the case of ferromagnetic cylinder the non-linear magnetic properties of materials have to be considered as well 0.0 0.2 0.4 0.6 0.8 0 2 4 6 8 10 12 a With cylinder Magnetic field (T) Time (ms) v=0 Fe Without cylinder 0.0 0.2 0.4 0.6 0.8 0 2 4 6 8 10 12 b Without cylinder Fixed cylinder Moving cylinder Magnetic field (T) Time (ms) 5 mm v Fe Fig.3.
Support by the EC project "The Center in Processing, Research and Application of Advanced Materials (PRAMA)", contract Nr.
Stupak: Journal of Information Technology and Control V. 3 (2003), p. 54.
Secondly, the force which is the result of magnetization of ferromagnetic material propels it to the center of the coil.
In order to perform numerical calculations in the case of ferromagnetic cylinder the non-linear magnetic properties of materials have to be considered as well 0.0 0.2 0.4 0.6 0.8 0 2 4 6 8 10 12 a With cylinder Magnetic field (T) Time (ms) v=0 Fe Without cylinder 0.0 0.2 0.4 0.6 0.8 0 2 4 6 8 10 12 b Without cylinder Fixed cylinder Moving cylinder Magnetic field (T) Time (ms) 5 mm v Fe Fig.3.
Support by the EC project "The Center in Processing, Research and Application of Advanced Materials (PRAMA)", contract Nr.
Stupak: Journal of Information Technology and Control V. 3 (2003), p. 54.
Online since: November 2014
Authors: D. Izzo, F. Scalera, A.N. Cancelli, F. Gervaso, B. Palazzo
Due to the significant role of bone in humans, most of the synthetic hybrid materials that are currently used for biomedical applications, such as regeneration of injured bone, attempt to mimic its structure and composition.
Materials and Methods Synthesis of the nano-hydroxyapatite/chitosan composites Nano-hydroxyapatite/chitosan (nHAp/Ch) composites with different weight percentage of inorganic phase have been obtained combining a freeze-drying technique with an original in situ biomineralization method.
XRD patterns of the inorganic materials crystallized into the biopolymer (Fig.1) showed characteristic diffraction maxima of an apatite single phase (JCPDS 9-432).
McIntire (Eds), Elsevier Science Ltd, Oxford, 1998
International Journal of Applied Ceramic Technology, 9(3), 507-516
Materials and Methods Synthesis of the nano-hydroxyapatite/chitosan composites Nano-hydroxyapatite/chitosan (nHAp/Ch) composites with different weight percentage of inorganic phase have been obtained combining a freeze-drying technique with an original in situ biomineralization method.
XRD patterns of the inorganic materials crystallized into the biopolymer (Fig.1) showed characteristic diffraction maxima of an apatite single phase (JCPDS 9-432).
McIntire (Eds), Elsevier Science Ltd, Oxford, 1998
International Journal of Applied Ceramic Technology, 9(3), 507-516