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Online since: October 2014
Authors: Yu Qin Li, Wei Feng He, Guang Yu He, Yan Chai
Experiment materials
Samples is cut from the blade made of K403 alloy to be used to carry on experiment studies and the Chemistry composition of K403 alloy is showen in table1.
Chinese Journal of Lasers, 2009, 36(8): 2197-2201(in Chinese) [2] LI Wei, LI Yinghong, HE Weifeng et al.
Laser generation of high-amplitude stress waves in materials [J].
Advanced Materials & Processes, 2003, 161(8): 65-71 [7] Yang J M, Her Y C, Clauer A H.
Material Science Engineer, 2001, A298: 296-299
Chinese Journal of Lasers, 2009, 36(8): 2197-2201(in Chinese) [2] LI Wei, LI Yinghong, HE Weifeng et al.
Laser generation of high-amplitude stress waves in materials [J].
Advanced Materials & Processes, 2003, 161(8): 65-71 [7] Yang J M, Her Y C, Clauer A H.
Material Science Engineer, 2001, A298: 296-299
Establishment of the Prediction Model for Ferrite Surface Roughness in Ultrasonic Vibration Grinding
Online since: September 2013
Authors: Ming Zhou, Guo Jun Dong, Jian Mei Liu, Zhi Qiang Xu
The application of diversified miniature components made of ferrite magnetic materials has become a development trend [3].
Acknowledgments This work is partly supported by the National Natural Science Foundation of China (NSFC) (Grant No. 51175122) References [1] S.Y.Zhang, Q.Lu and Y.W.Du. et al: Magnetic Material Basis (Beijing: Science Press, China 1988).
(In Chinese) [2] Minoru Konuma: Magnetic Materials (Engineering Books Kabuskiki Kaisha, Japan 1996)
Chen: Magnetic Materials and Devices, (2001) No.04. pp.34-36.
Hashmi: Journal of Materials Processing Technology, (1995) No.55, pp.123-127.
Acknowledgments This work is partly supported by the National Natural Science Foundation of China (NSFC) (Grant No. 51175122) References [1] S.Y.Zhang, Q.Lu and Y.W.Du. et al: Magnetic Material Basis (Beijing: Science Press, China 1988).
(In Chinese) [2] Minoru Konuma: Magnetic Materials (Engineering Books Kabuskiki Kaisha, Japan 1996)
Chen: Magnetic Materials and Devices, (2001) No.04. pp.34-36.
Hashmi: Journal of Materials Processing Technology, (1995) No.55, pp.123-127.
Online since: December 2012
Authors: Ke Liang Ren, Song Qing Zhao, Qiao Di Yang, Dong Xu Guo
Introduction
Monocrystalline silicon is the base material of the electronic industry.
Model and material properties In order to understand the fluid characteristics of molten silicon , and get the temperature and velocity value in CZ crystal furnace at different time, in this paper, the model and the parameter of CZ crystal furnace have been selected as in fig.1 ,and the material parameter of CZ crystal furnace as in Table.1.and Table.2.
CZ single crystal furnace two-dimensional model Table.1.Material properties of CZ crystal furnace Radiation coefficient 0. 5 (Crystal) 0. 3 (Melt) 0. 5 (Quartz crucible) 0. 8 (Graphite) 0. 6 (Curing carbon fiber felt) 1. 0 (Soft carbon felt) 0. 3 (Heat shield) Thermal conductivity/ (W·m- 1·K- 1) 66 (Melt) 3. 5 (Quartz crucible) 42 (Graphite) 2. 4 (Curing carbon fiber felt) 0. 45 (Soft carbon felt) 105 (Heat shield) 0.23(Argon) Density/ (kg·m- 3) 2330 (Melt) Heat capacity/ (J·kg - 1·K- 1) 1000 (Melt) 2000 Graphite) 521(Argon) Silicon crystallization temperature/ (K) 1683 Table.2.Silicon enthalpy Temperature/(K) 300 1523 1723 1823 Silicon enthalpy/(J·m-3) 4×109 8.3×109 11×109 11.2×109 Presentation of Result By using FEM and the software of ANSYS, in this paper, the preparation process of Czochralski crystal has been
Acknowledgements This work has been supported by the National Natural Science Foundation of China (No.10962007), and Key Project of Chinese Ministry of Education (No.209136), and Ningxia Natural Science Foundation of China (NZ1027).
Journal of Inorganic Materals. 2, 20 (2005)
Model and material properties In order to understand the fluid characteristics of molten silicon , and get the temperature and velocity value in CZ crystal furnace at different time, in this paper, the model and the parameter of CZ crystal furnace have been selected as in fig.1 ,and the material parameter of CZ crystal furnace as in Table.1.and Table.2.
CZ single crystal furnace two-dimensional model Table.1.Material properties of CZ crystal furnace Radiation coefficient 0. 5 (Crystal) 0. 3 (Melt) 0. 5 (Quartz crucible) 0. 8 (Graphite) 0. 6 (Curing carbon fiber felt) 1. 0 (Soft carbon felt) 0. 3 (Heat shield) Thermal conductivity/ (W·m- 1·K- 1) 66 (Melt) 3. 5 (Quartz crucible) 42 (Graphite) 2. 4 (Curing carbon fiber felt) 0. 45 (Soft carbon felt) 105 (Heat shield) 0.23(Argon) Density/ (kg·m- 3) 2330 (Melt) Heat capacity/ (J·kg - 1·K- 1) 1000 (Melt) 2000 Graphite) 521(Argon) Silicon crystallization temperature/ (K) 1683 Table.2.Silicon enthalpy Temperature/(K) 300 1523 1723 1823 Silicon enthalpy/(J·m-3) 4×109 8.3×109 11×109 11.2×109 Presentation of Result By using FEM and the software of ANSYS, in this paper, the preparation process of Czochralski crystal has been
Acknowledgements This work has been supported by the National Natural Science Foundation of China (No.10962007), and Key Project of Chinese Ministry of Education (No.209136), and Ningxia Natural Science Foundation of China (NZ1027).
Journal of Inorganic Materals. 2, 20 (2005)
Online since: February 2016
Authors: Pavel A. Akimov, Alexandr M. Belostosky, Sergey B. Penkovoy, Taymuraz B. Kaytukov, Sergey V. Scherbina
Buildings from prefabricated concrete standard panels, produced at specialized factories reduce construction time, the amount of materials used, and the cost of the entire structure, improving the general quality of concrete panels themselves, compared to monolithic.
Acknowledgements This work was financially supported by the Grants of Russian Academy of Architecture and Construction Sciences (7.1.7, 7.1.8).
Bathe, The Finite Element Method, in Encyclopedia of Computer Science and Engineering, B.
Fialko, Problems of computational mechanics relate to finite-element analysis of structural constructions, International Journal for Computational Civil and Structural Engineering, Vol. 1, No. 2 (2005) 72-86
Akimov, Correct Discrete-Continual Finite Element Method of Structural Analysis Based on Precise Analytical Solutions of Resulting Multipoint Boundary Problems for Systems of Ordinary Differential Equations, Applied Mechanics and Materials. 204-208 (2012) 4502-4505
Acknowledgements This work was financially supported by the Grants of Russian Academy of Architecture and Construction Sciences (7.1.7, 7.1.8).
Bathe, The Finite Element Method, in Encyclopedia of Computer Science and Engineering, B.
Fialko, Problems of computational mechanics relate to finite-element analysis of structural constructions, International Journal for Computational Civil and Structural Engineering, Vol. 1, No. 2 (2005) 72-86
Akimov, Correct Discrete-Continual Finite Element Method of Structural Analysis Based on Precise Analytical Solutions of Resulting Multipoint Boundary Problems for Systems of Ordinary Differential Equations, Applied Mechanics and Materials. 204-208 (2012) 4502-4505
Online since: July 2011
Authors: Yao Dong Gu, Yi Chen Lu
Evaluation of the mechanical performance of woodball mallet: a finite element study
Yichen Lu1, a, Yaodong Gu2
1Department of Physical Education, Zhejiang Wanli University, Ningbo China
2Faculty of Sports Science, Ningbo University, Ningbo China
aluyichen1@sina.com
Keywords: woodball. finite element analysis. stress. contact pressure
Abstract.
Fig. 1 The geometry information of woodball components The material properties of woodball components was listed in table 1.
Table.1 The material properties of woodball components.
For further study, it is important to represent the higher fidelity of the input conditions for the FEA, such as the motion and constraint of the grip, in addition to that of the geometry and material properties of the FE models, and the input conditions were suitable for the constructed model.
Development and use of one-dimensional models of a golf ball, Journal of Sports Sciences 20 (2002) 635-641
Fig. 1 The geometry information of woodball components The material properties of woodball components was listed in table 1.
Table.1 The material properties of woodball components.
For further study, it is important to represent the higher fidelity of the input conditions for the FEA, such as the motion and constraint of the grip, in addition to that of the geometry and material properties of the FE models, and the input conditions were suitable for the constructed model.
Development and use of one-dimensional models of a golf ball, Journal of Sports Sciences 20 (2002) 635-641
Online since: July 2014
Authors: Petr Konvalinka, Pavel Reiterman, Ondřej Holčapek
Introduction
Several research teams from various science research centers and universities from around the world devote their attention to the high-performance concrete area based on the Portland cement.
These high utility materials have also disadvantages for example low fire resistance, especially when silica aggregates is used.
From these reasons is necessary to protect their surface by secondary cladding from refractory materials or other special technology.
Acknowledgement This research work was financially supported by the Czech Science Foundation over the project No.: P104/12/0791 which is gratefully acknowledge.
Konvalinka: Mix design of UHPFRC and its response to projectile impact, International Journal of Impact Engineering, pp. 158-163 (2014) [2] R.
These high utility materials have also disadvantages for example low fire resistance, especially when silica aggregates is used.
From these reasons is necessary to protect their surface by secondary cladding from refractory materials or other special technology.
Acknowledgement This research work was financially supported by the Czech Science Foundation over the project No.: P104/12/0791 which is gratefully acknowledge.
Konvalinka: Mix design of UHPFRC and its response to projectile impact, International Journal of Impact Engineering, pp. 158-163 (2014) [2] R.
Online since: October 2013
Authors: Chao Jun Yang, Ke Xin Bi, Yu Han Wang
Studies in Science of Science, 10, 1568-1576(2011) (in Chinese)
[5] Renaud Bellais.
Post Keynesian Theory, Technology Policy, and Long term Growth .J.Journal of Post Keynesian Economies, 26(3), 419-444(2004) [6] Dang Yaru.
Province science and technology resources based on DEA efficiency evaluation of development .J.
Science and Technology Management Research, (16), 66-72(2011) [7] Schoenecker T, Swanson L.
Journal of Interdisciplinary Economies, 20(1-2), 149-166(2009) [9] Wang Jianwu, LuQinghua.Capacityfortechnology0pushspillovereffect of FDI on China.
Post Keynesian Theory, Technology Policy, and Long term Growth .J.Journal of Post Keynesian Economies, 26(3), 419-444(2004) [6] Dang Yaru.
Province science and technology resources based on DEA efficiency evaluation of development .J.
Science and Technology Management Research, (16), 66-72(2011) [7] Schoenecker T, Swanson L.
Journal of Interdisciplinary Economies, 20(1-2), 149-166(2009) [9] Wang Jianwu, LuQinghua.Capacityfortechnology0pushspillovereffect of FDI on China.
Online since: August 2011
Authors: Takao Nishioka, Tomoyuki Ueno, Kenji Matsunuma
As a solution to this problem, we developed an electrolytic re-insulation grinding method that finishes materials while applying a current between the material and the grinding wheel.
Recently, soft magnetic powder cores (SMPCs) have been drawing attention as materials for iron cores mentioned above [1].
Toroidal materials with an outer diameter of 34 mm, an inner diameter of 20 mm, and a thickness of 5 mm were used for the evaluation.
Ishimine et al.: Materials Science Forum Vol.534-536 (2007), p. 1333-1336 [2] K.
Shintani et al.: Journal of the Society for Precision Engineering Vol.76 (2010), No.7 p. 809-813 [3] H.
Recently, soft magnetic powder cores (SMPCs) have been drawing attention as materials for iron cores mentioned above [1].
Toroidal materials with an outer diameter of 34 mm, an inner diameter of 20 mm, and a thickness of 5 mm were used for the evaluation.
Ishimine et al.: Materials Science Forum Vol.534-536 (2007), p. 1333-1336 [2] K.
Shintani et al.: Journal of the Society for Precision Engineering Vol.76 (2010), No.7 p. 809-813 [3] H.
Online since: November 2013
Authors: Ali Habibolahzadeh, Hassan Ghorbani, Arash Kariminejad, Mohammad Azadeh
The concept of design metal matrix composites (MMCs) reinforced with innovative materials such as carbon nanotubes has thrown light on development of new materials with outstanding mechanical properties [8].
The use of these materials in chemical and petrochemical industries is also suitable because of their high corrosion resistance.
Experimental The characteristics of starting materials can be seen in Table (1).
Reference [1] Meyyappan, M , ''Carbon nanotube sciences and application'' ISBN _0-8493-2111-5;(2005)
(Sam) Froes, ''Developments in Titanium P/M'', Institute for Materials & Advanced Processes (IMAP)University of Idaho, Mines Building, ID 83844-3026
The use of these materials in chemical and petrochemical industries is also suitable because of their high corrosion resistance.
Experimental The characteristics of starting materials can be seen in Table (1).
Reference [1] Meyyappan, M , ''Carbon nanotube sciences and application'' ISBN _0-8493-2111-5;(2005)
(Sam) Froes, ''Developments in Titanium P/M'', Institute for Materials & Advanced Processes (IMAP)University of Idaho, Mines Building, ID 83844-3026
Online since: November 2021
Authors: Guang Lei Lv, Xin Mei Liu, Ming Zhao, Yuan Yuan Li
Polyurethane can be prepared by simple addition reaction using polyol, isocyanate, foaming agent and chain extender as raw materials.
The existence of a large number of microporous bubbles makes polyurethane materials have light weight and better elasticity.
Journal of materials research. 201412 (28): 901-908
Polymer materials science and engineering fire science and technology. 2014, 11 (35): 173-178
Chemical propellant and polymer materials. 2016, 1 (14): 16-35.
The existence of a large number of microporous bubbles makes polyurethane materials have light weight and better elasticity.
Journal of materials research. 201412 (28): 901-908
Polymer materials science and engineering fire science and technology. 2014, 11 (35): 173-178
Chemical propellant and polymer materials. 2016, 1 (14): 16-35.