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Online since: January 2011
Authors: Jie Zhang, Ai Hua Sun, Le Zhu, Xiang Gu
Laser shock processing (LSP) is a new technology to improve the performance of metallic materials.
As the volume content of SiCp is only 2.5%, the macro model of composite materials is selected.
By defining the enthalpy of the materials which changes with temperature, the melting latent heat is taken into.
Zhang: Journal of Jiangsu University (Natural Science), Vol. 23 (1) (2002), pp.1-4
Cheng: Journal of Tongji University Vol. 36(5) (2008), pp.640-645.
As the volume content of SiCp is only 2.5%, the macro model of composite materials is selected.
By defining the enthalpy of the materials which changes with temperature, the melting latent heat is taken into.
Zhang: Journal of Jiangsu University (Natural Science), Vol. 23 (1) (2002), pp.1-4
Cheng: Journal of Tongji University Vol. 36(5) (2008), pp.640-645.
Online since: February 2017
Authors: Gábor Buza, Miklós Berczeli
Not enough to concentrate to the laser welding technology parameters, also need to be specified the surface and it’s properties of the connected materials [1-2].
Materials and Methods To ensure reproducibility of experimental conditions 80 different laser welding joints had been created on a 30 x 100 mm S235 steel.
Kókai, Wetting properties of silver based alloys, World Academy of Science Engineering and Technology 9 (2015) 402-405
Liao, Optimization of deep penetration laser welding of thick stainless steel with a 10 kW fiber laser, Materials & Design 53 (2014) 568-576
Lin, Influence of Processing parameters on the characteristics of stainless steel/copper laser welding, Journal of Materials Processing Technology 222 (2015) 43-51
Materials and Methods To ensure reproducibility of experimental conditions 80 different laser welding joints had been created on a 30 x 100 mm S235 steel.
Kókai, Wetting properties of silver based alloys, World Academy of Science Engineering and Technology 9 (2015) 402-405
Liao, Optimization of deep penetration laser welding of thick stainless steel with a 10 kW fiber laser, Materials & Design 53 (2014) 568-576
Lin, Influence of Processing parameters on the characteristics of stainless steel/copper laser welding, Journal of Materials Processing Technology 222 (2015) 43-51
Online since: August 2010
Authors: Jun Feng Wang, Sui Huai Yu, Jan Jie Chu, Bin Qi
The research
result just dwell on concepts such as using recyclable materials in product development process, enact
laws about sustainable development process.
Table 1 Relationship Between Customer's Requirement- "Safe To Use" and SPD Criteria CR SPD criteria Strength of relations quantification Safe to use Reduce hazardous substance Strong 3 Less emissions Strong 3 High durability Medium 2 Use cleaner materials Weak 1 … … … 3)Development of SPD-CR matrix: We show how to interpret relationships between customer requirements which are identified in presented in Step 1 and SPD guidelines such as less material, less energy, easy disassembly etc.
Table 3 Relationship Between Customer's Requirement- "Safe To Use" and SPD Criteria CR SPD criteria Strength of relations quantification Safe to use #3 Easy to transport Weak 1 #6 high durability Medium 2 #8 Reduce hazardous substance Strong 3 #5 Less emissions Strong 3 #1 Consume less materials Weak 1 #9 Ergonomically safe Strong 3 #10 Easy to operate Strong 3 Table 4 SPD Criteria-CR Relational Matrix for Hair Dryer SPD criteria CR Lsp dc Lspdc -CR RLsp dc-C R Easy to grip (1) Less material usage (1) Quick drying(1) Safe to use (2) Low noise (1) Easy to operate (1) Extendable functionality (1) Less energy (3) #1 Less materials 1 3 1 1 2 8 9 8% #2 Less energy 3 2 1 3 9 15 13% #3 Easy to transport 1 3 1 1 1 7 10 9% #4 Easy disassembly 2 1 3 3 3% #5 Less emissions 2 3 2 7 10 9% #6 High durability 1 2 3 3 9 11 1/% #7 Less hazardous substance
Acknowledgement This work is partially supported by the National Support science and technology Program of China (Grant No. 2006BAF01A02) References [1] Walker, S., A journey in design: an exploration of perspectives for sustainability, The Journal of Sustainable Product Design, Vol. 2, pp. 3-10(2008)
[7] Vollenbroek, F.A., Sustainable development and the challenge of innovation, Journal of Cleaner Production, Vol. 10, pp. 215-223,(2002)
Table 1 Relationship Between Customer's Requirement- "Safe To Use" and SPD Criteria CR SPD criteria Strength of relations quantification Safe to use Reduce hazardous substance Strong 3 Less emissions Strong 3 High durability Medium 2 Use cleaner materials Weak 1 … … … 3)Development of SPD-CR matrix: We show how to interpret relationships between customer requirements which are identified in presented in Step 1 and SPD guidelines such as less material, less energy, easy disassembly etc.
Table 3 Relationship Between Customer's Requirement- "Safe To Use" and SPD Criteria CR SPD criteria Strength of relations quantification Safe to use #3 Easy to transport Weak 1 #6 high durability Medium 2 #8 Reduce hazardous substance Strong 3 #5 Less emissions Strong 3 #1 Consume less materials Weak 1 #9 Ergonomically safe Strong 3 #10 Easy to operate Strong 3 Table 4 SPD Criteria-CR Relational Matrix for Hair Dryer SPD criteria CR Lsp dc Lspdc -CR RLsp dc-C R Easy to grip (1) Less material usage (1) Quick drying(1) Safe to use (2) Low noise (1) Easy to operate (1) Extendable functionality (1) Less energy (3) #1 Less materials 1 3 1 1 2 8 9 8% #2 Less energy 3 2 1 3 9 15 13% #3 Easy to transport 1 3 1 1 1 7 10 9% #4 Easy disassembly 2 1 3 3 3% #5 Less emissions 2 3 2 7 10 9% #6 High durability 1 2 3 3 9 11 1/% #7 Less hazardous substance
Acknowledgement This work is partially supported by the National Support science and technology Program of China (Grant No. 2006BAF01A02) References [1] Walker, S., A journey in design: an exploration of perspectives for sustainability, The Journal of Sustainable Product Design, Vol. 2, pp. 3-10(2008)
[7] Vollenbroek, F.A., Sustainable development and the challenge of innovation, Journal of Cleaner Production, Vol. 10, pp. 215-223,(2002)
Online since: November 2010
Authors: Yoshiharu Mutoh, M. Jayaprakash, K. Asai, Kunihiro Ichikawa, Shigeo Sakurai
Sakurai3,e
1
Department of Materials Science, Nagaoka University of Technology,
Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan.
2
Department of Systems Saftey, Nagaoka University of Technology,
Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan.
3
Hitachi Ltd, Hitachi, Ibaraki 317-8511, Japan.
Since the tangential stress range - compressive stress range diagram is a material property, the above mentioned approach is valid for the particular materials for which the diagrams have been obtained.
Therefore, the generalized diagram, which can be applied to wide range of materials, is strongly required to develop.
Journal of Fatigue, (2010)
Yoshii, Fretting Fatigue Behavior of bolted steel plate, submitted to Journal of Solid Mechanics and Materials Engineering (2010)
Since the tangential stress range - compressive stress range diagram is a material property, the above mentioned approach is valid for the particular materials for which the diagrams have been obtained.
Therefore, the generalized diagram, which can be applied to wide range of materials, is strongly required to develop.
Journal of Fatigue, (2010)
Yoshii, Fretting Fatigue Behavior of bolted steel plate, submitted to Journal of Solid Mechanics and Materials Engineering (2010)
Online since: June 2012
Authors: Jian Ping Lin, Jun Ying Min, Fabien Mace
Materials’ properties.
In our study three materials are used: the tool’s material, the part’s material (Boron steel) and the coolant.
Acknowledgements The authors would like to thank the financial support from the project under grant No.51075307 of the National Natural Science Foundation of China.
Tekkaya,A review on hot stamping, Journal of Materials Processing Technology ,Institute of Forming Technology and Lightweight Construction, Dortmund University of Technology, Baroper Str. 301, D-44227 Dortmund, Germany (2010) [2] M.
Journal of Materials Processing Technology 177, 452–455. (2006) [3] M.C.
In our study three materials are used: the tool’s material, the part’s material (Boron steel) and the coolant.
Acknowledgements The authors would like to thank the financial support from the project under grant No.51075307 of the National Natural Science Foundation of China.
Tekkaya,A review on hot stamping, Journal of Materials Processing Technology ,Institute of Forming Technology and Lightweight Construction, Dortmund University of Technology, Baroper Str. 301, D-44227 Dortmund, Germany (2010) [2] M.
Journal of Materials Processing Technology 177, 452–455. (2006) [3] M.C.
Online since: September 2011
Authors: Guo Ning Tang, Wei Liu, Dan Ren, Meng Peng
Kinematic Characteristics Research of the Superfine Particles in the Superfine Vibration Mill
Tang Guoning 1, Peng Meng 2, Liu Wei 1, Ren Dan 1
1Hunan University of Science and Technology(411201)
2Hunan Institute of the First Industrial Design(410011)
Keywords: vibration mill, motion of discrete body,Moore stress round
Abstract.
When the mill vibrated frequency is fixed, if filling rate of mill is bigger, and the velocity of material particle in the roller is smaller, then grinding rate is reduced; on the contrary, if filling rate of mill is smaller, and the velocity of material particle in the roller is bigger, but grinding rate is low.
In the figure, sphere represents grinding medium, powder-like small square particles (including the flocci covered on sphere) represent materials remain to be grinded.
Journal of Tianjin University, 2000,33(1):59-61 [4]Kiangi K.
Journal of Vibration and Shock [8] G.N.Tang, A.H.Chen, Orthogonal test of grinding of grind medium about wave grinding mill, J.XIANGTAN MIN.INST. 2002,17(3):27~29 [9] Timothy Stranex , Spencer Wheaton.
When the mill vibrated frequency is fixed, if filling rate of mill is bigger, and the velocity of material particle in the roller is smaller, then grinding rate is reduced; on the contrary, if filling rate of mill is smaller, and the velocity of material particle in the roller is bigger, but grinding rate is low.
In the figure, sphere represents grinding medium, powder-like small square particles (including the flocci covered on sphere) represent materials remain to be grinded.
Journal of Tianjin University, 2000,33(1):59-61 [4]Kiangi K.
Journal of Vibration and Shock [8] G.N.Tang, A.H.Chen, Orthogonal test of grinding of grind medium about wave grinding mill, J.XIANGTAN MIN.INST. 2002,17(3):27~29 [9] Timothy Stranex , Spencer Wheaton.
Online since: September 2018
Authors: Nelly Skripnikova, Pavel Balobanov, Andreas Pfuch, Gennadii G. Volokitin, Oleg Volokitin, Valentin Shekhovtsov
Introduction
Wood is material of plant origin, and this makes impact on all its properties and largely determines both strengths and weaknesses of this specific material that markedly differs from all other materials (stone, metal).
In the markets of finishing materials, more and more customers prefer wood products rather than artificial.
Plasma Treatment System With a view to create a protective-decorative coating on the wood surface, researchers of the Applied Mechanics and Materials Science Department at Tomsk State University of Architecture and Building (TSUAB), designed the experimental plasma treatment system, the cross-sectional view of which is shown in Figure 1 [9, 10].
Water absorption tests are conducted using the methodology designed at the Research Institute of Building Materials, TSUAB.
Kashapov, Plasma technologies application for building materials surface modification, J.
In the markets of finishing materials, more and more customers prefer wood products rather than artificial.
Plasma Treatment System With a view to create a protective-decorative coating on the wood surface, researchers of the Applied Mechanics and Materials Science Department at Tomsk State University of Architecture and Building (TSUAB), designed the experimental plasma treatment system, the cross-sectional view of which is shown in Figure 1 [9, 10].
Water absorption tests are conducted using the methodology designed at the Research Institute of Building Materials, TSUAB.
Kashapov, Plasma technologies application for building materials surface modification, J.
Online since: December 2011
Authors: Wei Zhu, Hong Zhen Li, Shi Rang Ma, Da Bin Liu
The selection idea is based on the characteristics of raw materials.
The compact mixture material skeleton structure is designed through the volume trial of the original aggregate.
Journal of Chang’an University(Natural Science Edition), 2004,24(6):1-6
Journal of the Association of Asphalt PavingTechnologists, 2001,70: 1-5
Journal of Chang’an University(Natural Science Edition), 2005,25(4):1-4.
The compact mixture material skeleton structure is designed through the volume trial of the original aggregate.
Journal of Chang’an University(Natural Science Edition), 2004,24(6):1-6
Journal of the Association of Asphalt PavingTechnologists, 2001,70: 1-5
Journal of Chang’an University(Natural Science Edition), 2005,25(4):1-4.
Online since: March 2011
Authors: Aleš Petek, Karl Kuzman, Renato Fijavž
Johnson et al. [1] investigated the influence of the materials’ plastic characteristic and performed an experimental study on the deformation of circular plates.
Due to its frequent use in the automotive sheet metal forming industry, DC05 steel of 1.2 mm in thickness was used as specimen material.
Chien: Journal of Materials Processing Technology, 117, 43–51, (2001)
Gao: CIRP Journal of Manufacturing Science and Technology 2, 124–128, (2010)
Vižintin: Journal of Mechanical Engineering, vol. 54/4, (2008), p. 266-273
Due to its frequent use in the automotive sheet metal forming industry, DC05 steel of 1.2 mm in thickness was used as specimen material.
Chien: Journal of Materials Processing Technology, 117, 43–51, (2001)
Gao: CIRP Journal of Manufacturing Science and Technology 2, 124–128, (2010)
Vižintin: Journal of Mechanical Engineering, vol. 54/4, (2008), p. 266-273
Online since: October 2013
Authors: Peter R. Wilshaw, Christian Reichel, Ruy S. Bonilla, Martin Hermle
Electric field effect surface passivation for silicon solar cells
Ruy S Bonilla1,a, Christian Reichel2, Martin Hermle2 and Peter Wilshaw1
1 Department of Materials, University of Oxford, Parks Rd, Oxford, United Kingdom, OX1 3PH, UK
2 Fraunhofer Institute for Solar Energy Systems ISE, Heidenhofstr 2, Freiburg, Germany, 79110
a sebastian.bonilla@materials.ox.ac.uk (corresponding author)
Keywords: Surface passivation, effective lifetime, field effect, dielectric, electret.
Cuevas, “Very low bulk and surface recombination in oxidized silicon wafers,” Semiconductor Science and Technology, vol. 17, no. 1, pp. 35–38, Jan. 2002
Cuevas, “Recombination at the interface between silicon and stoichiometric plasma silicon nitride,” Semiconductor Science and Technology, vol. 17, no. 2, pp. 166–172, Feb. 2002
Xia, “Transport of detrapped charges in thermally wet grown SiO2 electrets,” Journal of Applied Physics, vol. 74, no. 12, pp. 7269–7274, 1993
Cuevas, “General parameterization of Auger recombination in crystalline silicon,” Journal of Applied Physics, vol. 91, no. 4, p. 2473, Feb. 2002
Cuevas, “Very low bulk and surface recombination in oxidized silicon wafers,” Semiconductor Science and Technology, vol. 17, no. 1, pp. 35–38, Jan. 2002
Cuevas, “Recombination at the interface between silicon and stoichiometric plasma silicon nitride,” Semiconductor Science and Technology, vol. 17, no. 2, pp. 166–172, Feb. 2002
Xia, “Transport of detrapped charges in thermally wet grown SiO2 electrets,” Journal of Applied Physics, vol. 74, no. 12, pp. 7269–7274, 1993
Cuevas, “General parameterization of Auger recombination in crystalline silicon,” Journal of Applied Physics, vol. 91, no. 4, p. 2473, Feb. 2002