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Online since: May 2007
Authors: Jiu Peng Zhao, Deng Teng Ge, Sai Lei Zhang, Xi Long Wei
Studies on Thermal Property of Silica Aerogel/epoxy Composite
Jiupeng Zhao 1, a
, Dengteng Ge 2, b, Sailei Zhang2 , Xilong Wei 3
1
Department of Applied Chemistry, Harbin Institute of Technology, Harbin, China
2
Center for Composite Materials and Structure, Harbin Institute of Technology, Harbin, China
3
National Engineering Research Center for Polymer Matrix Composites, Harbin, China
a
jpzhao@hit.edu.cn, bge12341234@sohu.com
Keywords: Silica aerogel, Epoxy, Thermal insulation, Composite.
Silica aerogel/epoxy composite, a kind of efficient thermal insulation material, was prepared by doping silica aerogel of different sizes into epoxy resin through thermocuring process.
In this paper, we choose silica aerogel as the additive particle which is a kind of nanoporous materials with high specific, low density, low refractive index and the lowest thermal conductivity.
[2] Soo-Jin Park and Fan-Long: Materials Science and Engineering A402 (2005) 335-340
[5] G.S.KIM and S.H.HYUN: Journal of Materials Science 38 (2003) 1961-1966.
Silica aerogel/epoxy composite, a kind of efficient thermal insulation material, was prepared by doping silica aerogel of different sizes into epoxy resin through thermocuring process.
In this paper, we choose silica aerogel as the additive particle which is a kind of nanoporous materials with high specific, low density, low refractive index and the lowest thermal conductivity.
[2] Soo-Jin Park and Fan-Long: Materials Science and Engineering A402 (2005) 335-340
[5] G.S.KIM and S.H.HYUN: Journal of Materials Science 38 (2003) 1961-1966.
Online since: November 2012
Authors: Jian Qun Jiang, Xiao Wen Yao
However, dynamic contact force model is developed on the basis of ideal joint interface and there are several factors neglected, such as the materials in the joints and initial tensile strength.
Hence, the continuum damage mechanics is employed to establish the damage mechanical equations for describing the evolution of the internal variables and the mechanical behavior of damaged materials [7].
Previous studies showed that the varying characteristics of dam material and local response will finally be reflected in the displacement field.
Chen: Science in China Series E: Technological Sciences, Vol. 50 (2007), p.11-19
Tinawi: Journal of Engineering Mechanics, Vol. 121 (1995) No.4, p.513-527.
Hence, the continuum damage mechanics is employed to establish the damage mechanical equations for describing the evolution of the internal variables and the mechanical behavior of damaged materials [7].
Previous studies showed that the varying characteristics of dam material and local response will finally be reflected in the displacement field.
Chen: Science in China Series E: Technological Sciences, Vol. 50 (2007), p.11-19
Tinawi: Journal of Engineering Mechanics, Vol. 121 (1995) No.4, p.513-527.
Online since: March 2015
Authors: Xiao Yan Niu, Gui Xiang Wang, Wei Li
Steering knuckle materials is 40Cr.
Because 40Cr belongs to plastic materials, so the strength calculation, with the yield limit as the limit stress.
Even plastic materials, good, no obvious plastic deformation before fracture, this phenomenon is known as fatigue failure.
Acknowledgment This work was supported by the Natural Science Foundation of Hebei Province (No.
Auto Mobile Science & Technology.
Because 40Cr belongs to plastic materials, so the strength calculation, with the yield limit as the limit stress.
Even plastic materials, good, no obvious plastic deformation before fracture, this phenomenon is known as fatigue failure.
Acknowledgment This work was supported by the Natural Science Foundation of Hebei Province (No.
Auto Mobile Science & Technology.
Online since: November 2012
Authors: Jing Zhong Gong, Bao Zhong Wu, Guo Xi Li, Jing Qiu, Xin Yin
Introduction
The lightweight, thin wall and complex parts that are made of the new, composite materials are adopted in the modern aerospace product.
,Stream of Variation Theory for Automotive Body Assembly,Annals Of The Cirp, 1997, Vol.46/1,pl-6 [2] Liu S.Charles,Hu S.Jack,An Offset Finite Element Model and Its Applications in Predicting Sheet Metal Assembly Variation,International Journal of Machine Tools and Manufacturing, 1995, Vol.35,No.11,p1545-1557 [3] Liu S.Charles,Hu S.Jack,Variation Simulation for deformable Sheet Metal Assemblies Using Finite Element Methods,Journal of Manufacturing Science and Engineering, 1997, Vol.119, p368-374 [4] Cai W, Hu S.J. and Yuan J.X: Deformable Sheet Metal Fixturing:Principles,Algorithms,and Simulations,Journal of Manufacturing Science and Engineering,1999,Vol.121,p771-777 [5] Liu S.Charles,Hu S.Jack,Sheet Metal Joint Configurations and Their Variation Characteristics, Journal of Manufacturing Science and Engineering,1998,Vol.120,p461-467 [6] Mantripragada Ramakrishna,Whitney Daniel E.Modeling and Controlling Variation Propagation in Mechanical Assemblies Using State Transition Models,IEEE
,Variation Risk Management Using Modeling and Sinulation,Journal of Mechanical Design,1999,Vol.121,p297-303 [11] Thornton Anna C.
,Quantitative Selection of Variation Reduction Plans,Journal of Mechanical Design,2000,Vol.122,p185-193 [12] Chase K.W.
,General 2-D tolerance analysis of mechanical assemblies with small kinematic adjustments,Journal of Design and Manufacturing,1995,Vol.5,p263-274 [15] Chase K.W.
,Stream of Variation Theory for Automotive Body Assembly,Annals Of The Cirp, 1997, Vol.46/1,pl-6 [2] Liu S.Charles,Hu S.Jack,An Offset Finite Element Model and Its Applications in Predicting Sheet Metal Assembly Variation,International Journal of Machine Tools and Manufacturing, 1995, Vol.35,No.11,p1545-1557 [3] Liu S.Charles,Hu S.Jack,Variation Simulation for deformable Sheet Metal Assemblies Using Finite Element Methods,Journal of Manufacturing Science and Engineering, 1997, Vol.119, p368-374 [4] Cai W, Hu S.J. and Yuan J.X: Deformable Sheet Metal Fixturing:Principles,Algorithms,and Simulations,Journal of Manufacturing Science and Engineering,1999,Vol.121,p771-777 [5] Liu S.Charles,Hu S.Jack,Sheet Metal Joint Configurations and Their Variation Characteristics, Journal of Manufacturing Science and Engineering,1998,Vol.120,p461-467 [6] Mantripragada Ramakrishna,Whitney Daniel E.Modeling and Controlling Variation Propagation in Mechanical Assemblies Using State Transition Models,IEEE
,Variation Risk Management Using Modeling and Sinulation,Journal of Mechanical Design,1999,Vol.121,p297-303 [11] Thornton Anna C.
,Quantitative Selection of Variation Reduction Plans,Journal of Mechanical Design,2000,Vol.122,p185-193 [12] Chase K.W.
,General 2-D tolerance analysis of mechanical assemblies with small kinematic adjustments,Journal of Design and Manufacturing,1995,Vol.5,p263-274 [15] Chase K.W.
Online since: December 2012
Authors: Bin Li, Qing Song Yong, Gui Ming Liu
Introduction
Dispersion strengthened copper composite materials is a class of new composite materials with excellent physical properties and mechanical properties, the performance of both high strength and high conductivity and softening resistance at high temperature [1].
[2] X C Ma and G Q He: The Chinese Journal of Materials Review.
Vol. 3(2007), p.63 [3] D W Lee, B K Kim: Materials Letters.
Vol. 58(2004), p.378 [4] V Provenzano, R L Holtz: Materials Science and Engineering.
Vol. 38(1998), p.199 [6] M F Ashby, S K Bah, K J Bev: Progress in Materials Science, Vol. 25(1980), p.34
[2] X C Ma and G Q He: The Chinese Journal of Materials Review.
Vol. 3(2007), p.63 [3] D W Lee, B K Kim: Materials Letters.
Vol. 58(2004), p.378 [4] V Provenzano, R L Holtz: Materials Science and Engineering.
Vol. 38(1998), p.199 [6] M F Ashby, S K Bah, K J Bev: Progress in Materials Science, Vol. 25(1980), p.34
Online since: October 2024
Authors: Sia Yee Yang, Mouad A. Tarawneh, Lih Jiun Yu, Nai Yeen Gavin Lai, Ruey Shan Chen
Tarawneh4,d, Yu Lih Jiun1,e*
1Faculty of Engineering, Technoogy & Built Environment (FETBE), UCSI University, 56000 Kuala Lumpur, Malaysia.
2Faculty of Science and Engineering, University of Nottingham Ningbo China, 199 Taikang East Road, Ningbo, 315100, China
3Department of Applied Physics, Faculty of Science and Technology, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
4Department of Physics, College of Science, Al-Hussein Bin Talal University, P.O.
This study investigates the impact of limonene on the degradation of natural rubber, focusing on the material’s physical and chemical properties.
Methodology and Experimental Setup Materials D-limonene 99.5% supplied from Chemsoln, ethanol (R&M), ASTM D412 type c natural rubber samples.
Cacioli, The manufacture of gloves from natural rubber latex, Journal of Allergyand Clinical Immunology 110 (2002), pp.
Crosby, Surface wrinkles for smart adhesion, Advanced Materials 20 (2008), pp. 711–716
This study investigates the impact of limonene on the degradation of natural rubber, focusing on the material’s physical and chemical properties.
Methodology and Experimental Setup Materials D-limonene 99.5% supplied from Chemsoln, ethanol (R&M), ASTM D412 type c natural rubber samples.
Cacioli, The manufacture of gloves from natural rubber latex, Journal of Allergyand Clinical Immunology 110 (2002), pp.
Crosby, Surface wrinkles for smart adhesion, Advanced Materials 20 (2008), pp. 711–716
Online since: October 2021
Authors: Pavel Reiterman, Martin Keppert, Pavla Bauerová, Magdalena Kracík Štorkánová
Mechanical Properties of Reproduced Historic Mosaic Mortar
Pavla BAUEROVÁ1,2a, Pavel REITERMAN3,b*,
Magdalena KRACÍK ŠTORKÁNOVÁ4,c and Martin KEPPERT1,d
1Czech Technical University in Prague, Faculty of Civil Engineering, Department of Materials Engineering and Chemistry, Thákurova 7, 166 29 Praha, Czech Republic
2Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, Prosecká 809/76, 190 00 Prague, Czech Republic
3Czech Technical University in Prague, Faculty of Civil Engineering, Experimental Centre, Thákurova 7, 166 29 Praha, Czech Republic
4Art & Craft Mozaika, z.s., Kapitulní 103/19, 252 62 Únětice, Czech Republic
apavlabau@centrum.cz, bpavel.reiterman@fsv.cvut.cz, cmozaikart.cz@gmail.com, dmartin.keppert@fsv.cvut.cz
Keywords: Linseed oil; mechanical properties; historic mortars.
Thus, application of the original technology and materials is highly required.
Acknowledgement The work has been supported by the Czech Science Foundation project No. 18-13525S “Modern mosaic mortars in a microscope – methods for their materials characterization and degradation studies”.
Merino, Traditional organic additives improve lime mortars: New old materials for restoration and building natural stone fabrics, Con.
Keppert, Lime mortars with linseed oil: engineering properties and durability, Revista Romana de Materiale / Romanian Journal of Materials 51(2) (2021) 239-246.
Thus, application of the original technology and materials is highly required.
Acknowledgement The work has been supported by the Czech Science Foundation project No. 18-13525S “Modern mosaic mortars in a microscope – methods for their materials characterization and degradation studies”.
Merino, Traditional organic additives improve lime mortars: New old materials for restoration and building natural stone fabrics, Con.
Keppert, Lime mortars with linseed oil: engineering properties and durability, Revista Romana de Materiale / Romanian Journal of Materials 51(2) (2021) 239-246.
Online since: January 2011
Authors: Ya Nan Zhang, Hai Qing Hu, Long Sun
Material and method
TM images.
References [1] L.H.Liu, S.H.Xing:The Research Progress, Problems and Prospects of Soil Carbon Storage at Home and Aboard .Chinese Journal of Soil Science.Vol.40 (2009),p.697-701 [2] R.Lal:Forest Soils and Carbon Sequestration.
Journal of Soil and Water Conservation.
Science.
Science of Soil and Water Conservation.
References [1] L.H.Liu, S.H.Xing:The Research Progress, Problems and Prospects of Soil Carbon Storage at Home and Aboard .Chinese Journal of Soil Science.Vol.40 (2009),p.697-701 [2] R.Lal:Forest Soils and Carbon Sequestration.
Journal of Soil and Water Conservation.
Science.
Science of Soil and Water Conservation.
Online since: August 2013
Authors: Wojciech Bujalski, Jarosław Milewski, Marcin Wołowicz, Kamil Futyma, Rafał Bernat
Kotowicz, “Experimental stand for co2 membrane separation,” Journal of Power Technologies 91(4), pp. 171–178, 2011
Campanari, “Carbon dioxide separation from high temperature fuel cell power plants,” Journal of Power Sources 112(1), pp. 273 – 289, 2002
Miyazaki, “The carbon dioxide concentrator by using mcfc,” Journal of Power Sources 118(1-2), pp. 218 – 227, 2003
Huang, “Silver-molten carbonate composite as a new high-flux membrane for electrochemical separation of co2 from flue gas,” Journal of Membrane Science , pp. –, 2012
Bernat, “Experimental investigation of co2 separation from hard coal flue gases by 100 cm2 molten carbonate fuel cell,” Applied Mechanics and Materials 302, pp. 97–103, 2013.
Campanari, “Carbon dioxide separation from high temperature fuel cell power plants,” Journal of Power Sources 112(1), pp. 273 – 289, 2002
Miyazaki, “The carbon dioxide concentrator by using mcfc,” Journal of Power Sources 118(1-2), pp. 218 – 227, 2003
Huang, “Silver-molten carbonate composite as a new high-flux membrane for electrochemical separation of co2 from flue gas,” Journal of Membrane Science , pp. –, 2012
Bernat, “Experimental investigation of co2 separation from hard coal flue gases by 100 cm2 molten carbonate fuel cell,” Applied Mechanics and Materials 302, pp. 97–103, 2013.