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Online since: November 2012
Authors: Ferenc Ronkay, Anett Király
Materials and methods
Materials
Tipplen H949A polypropylene (TVK, Hungary) with an MFR value of 45g/10 min was used as a matrix material in the experiments.
From the melt-mixed materials 2 mm thick plates were compression molded at 250°C and 160 bar using a Collin P 200E mold.
It can be seen that the conductivity of the hybrid filled materials is considerably higher than that of the samples containing only one kind of filler.
Ett, Carbon materials in composite bipolar plates for polymer electrolyte membrane fuel cells: A review of the main challenges to improve electrical performance, Journal of Power Sources, 196 (2011) 2945-2961
Pekcan, Electrical and optical percolations of polystyrene latex-multiwalled carbon nanotube composites, Journal of Colloid and Interfae Science, 344 (2010) 395-401
From the melt-mixed materials 2 mm thick plates were compression molded at 250°C and 160 bar using a Collin P 200E mold.
It can be seen that the conductivity of the hybrid filled materials is considerably higher than that of the samples containing only one kind of filler.
Ett, Carbon materials in composite bipolar plates for polymer electrolyte membrane fuel cells: A review of the main challenges to improve electrical performance, Journal of Power Sources, 196 (2011) 2945-2961
Pekcan, Electrical and optical percolations of polystyrene latex-multiwalled carbon nanotube composites, Journal of Colloid and Interfae Science, 344 (2010) 395-401
Online since: August 2016
Authors: Tomasz Sadowski, Przemysław Golewski, Viorel Radoiu
The important example of the modern composite materials are functionally graded materials, (e.g. [1-6]) or polycrystalline materials having thin metallic layers between material components (e.g. [7-10]).
Therefore, the present analysis will be developed for more complex geometries and structural parts made of different materials.
References [1] V.Birman, L.V.Bryd, Modelling and Analysis of Functionally Graded Materials and Structures.
[8] L.A.Gömze, L.N.Gömze, Alumina-based hetero-modulus ceramic composites with extreme dynamic strength – phase transformation of Si3N4 during high speed collision with metallic bodies, Ĕpitöanyag – Journal of Silicate Based and Composite Materials 61 (2009) 38-42
Sadowski, S.D.Dimitrova, Computational simulations of thermal shock cracking by the virtual crack closure technique in a functionally graded plate, Computational Materials Science 116 (2016) 11-21
Therefore, the present analysis will be developed for more complex geometries and structural parts made of different materials.
References [1] V.Birman, L.V.Bryd, Modelling and Analysis of Functionally Graded Materials and Structures.
[8] L.A.Gömze, L.N.Gömze, Alumina-based hetero-modulus ceramic composites with extreme dynamic strength – phase transformation of Si3N4 during high speed collision with metallic bodies, Ĕpitöanyag – Journal of Silicate Based and Composite Materials 61 (2009) 38-42
Sadowski, S.D.Dimitrova, Computational simulations of thermal shock cracking by the virtual crack closure technique in a functionally graded plate, Computational Materials Science 116 (2016) 11-21
Online since: June 2013
Authors: Pan Chu
The inverse heat conduction problems (IHCP) analysis method provides a promising approach for acquiring the thermal physical properties of materials, the boundary conditions and the initial conditions from the known temperature measurement data, where the efficiency of the inversion algorithms plays a crucial role in real applications.
Introduction Efficiently estimating the thermal physical parameters of materials, the boundary conditions and the initial conditions plays a crucial role in the field of the thermal engineering.
Radhouani, Versión étendue du filtre de Kalman discret appliquée à un problème inverse de conduction de chaleur non linéaire, International Journal of Thermal Sciences 39 (2000) 191-212
Rodríguez, Two-dimensional non-linear inverse problem heat conduction problem based on the singular value decomposition, International Journal of Thermal Sciences 48 (2009) 1081-1093
Lee, Solution of inverse heat conduction problems using maximum entropy method, International Journal of Heat and Mass Transfer 45 (2002) 381-391
Introduction Efficiently estimating the thermal physical parameters of materials, the boundary conditions and the initial conditions plays a crucial role in the field of the thermal engineering.
Radhouani, Versión étendue du filtre de Kalman discret appliquée à un problème inverse de conduction de chaleur non linéaire, International Journal of Thermal Sciences 39 (2000) 191-212
Rodríguez, Two-dimensional non-linear inverse problem heat conduction problem based on the singular value decomposition, International Journal of Thermal Sciences 48 (2009) 1081-1093
Lee, Solution of inverse heat conduction problems using maximum entropy method, International Journal of Heat and Mass Transfer 45 (2002) 381-391
Online since: November 2011
Authors: Hong Gao, Shu Hong Liu, Xi Jie Lan
Materials and methods
Materials
The coal gangue without burning was exploited from Fengmei coal mine, Dandong city, Liaoning province in China, and its chemical compositions are listed in table 1.
Journal of Liaoning Technical University (Natural Science Edition) (in Chinese) Vol. 21 (2002), p. 824-826 [2] Jianmei Sui.
Journal of East China University of Science and Technology (in Chinese) Vol. 33 (2007), p. 765-768 [6] Yongfeng Li.
Journal of Wuhan University of Technology (Materials Science Edition) Vol. 2 (2009), p. 326-9 [8] Chenshen Gong.
Journal of Wuhan University of Technology (Materials Science Edition) Vol. 4 (2007), p. 749-53
Journal of Liaoning Technical University (Natural Science Edition) (in Chinese) Vol. 21 (2002), p. 824-826 [2] Jianmei Sui.
Journal of East China University of Science and Technology (in Chinese) Vol. 33 (2007), p. 765-768 [6] Yongfeng Li.
Journal of Wuhan University of Technology (Materials Science Edition) Vol. 2 (2009), p. 326-9 [8] Chenshen Gong.
Journal of Wuhan University of Technology (Materials Science Edition) Vol. 4 (2007), p. 749-53
Online since: December 2024
Authors: Eka Safitri, Nasrullah Idris, Faridah Hanum, Rinaldi Idroes
The process of synthesizing polyurethane (PU) membranes typically involves linking together networks of polymers using organic materials like polyols and isocyanates.
The choice between organic and inorganic materials is contingent upon the specific requirements of the application and the intended characteristics of the PU membrane [2].
The composition of the materials employed in the synthesis procedure of the PU membrane plays a crucial role in governing the production of the hard and soft segments within the membrane structure.
Experimental The materials used were ĸ-carrageenan powder, di(2-ethylhexyl)phosphoric acid (D2EHPA) (Merck), acetone, and toluene diisocyanate (TDI) as a reagent in pro's quality analysis from Merck (Darmstadt, Germany).
Cardenas-Lopez, J.Lopez-Elias et al, Saudi Journal of Biological Sciences 28, 1401-1416 (2021)
The choice between organic and inorganic materials is contingent upon the specific requirements of the application and the intended characteristics of the PU membrane [2].
The composition of the materials employed in the synthesis procedure of the PU membrane plays a crucial role in governing the production of the hard and soft segments within the membrane structure.
Experimental The materials used were ĸ-carrageenan powder, di(2-ethylhexyl)phosphoric acid (D2EHPA) (Merck), acetone, and toluene diisocyanate (TDI) as a reagent in pro's quality analysis from Merck (Darmstadt, Germany).
Cardenas-Lopez, J.Lopez-Elias et al, Saudi Journal of Biological Sciences 28, 1401-1416 (2021)
Online since: October 2022
Authors: Zi Xuan You, Lin Wang, De Bao Fang, Shi Qiao Liu, Jing Bo Li, Hai Bo Jin
Yuan, Ultrathin graphene: electrical properties and highly efficient electromagnetic interference shielding, Journal of materials chemistry C. 3(26) (2015) 6589-6599
Luo, Flexible thin microwave absorbing patch: flake carbonyl iron and chopped carbon fibers oriented in resin matrix, Journal of Materials Science: Materials in Electronics. 31(2) (2020) 1442-1450
Duan, Wave-transmitting material to optimize impedance matching and enhance microwave absorption properties of flaky carbonyl iron coating, Journal of Materials Science: Materials in Electronics. 31(11) (2020) 8627-8636
Jian, Electromagnetic and microwave absorption properties of coatings based on spherical and flaky carbonyl iron, Journal of Materials Science: Materials in Electronics. 30(19) (2019) 18123-18134
Chen, Preparation of rGO/PVA/CIP composites and their microwave absorption properties, Journal of Magnetism and Magnetic Materials. 479 (2019) 337-343
Luo, Flexible thin microwave absorbing patch: flake carbonyl iron and chopped carbon fibers oriented in resin matrix, Journal of Materials Science: Materials in Electronics. 31(2) (2020) 1442-1450
Duan, Wave-transmitting material to optimize impedance matching and enhance microwave absorption properties of flaky carbonyl iron coating, Journal of Materials Science: Materials in Electronics. 31(11) (2020) 8627-8636
Jian, Electromagnetic and microwave absorption properties of coatings based on spherical and flaky carbonyl iron, Journal of Materials Science: Materials in Electronics. 30(19) (2019) 18123-18134
Chen, Preparation of rGO/PVA/CIP composites and their microwave absorption properties, Journal of Magnetism and Magnetic Materials. 479 (2019) 337-343
Online since: September 2016
Authors: Hai Yan Xing, Guan Ga Dai, Hua Ge, Xiao Jun Sun, Zheng Shuai Yu
The experimental materials are Q235B welded plate specimens.
Experiments The tabular welded specimens are made of steel Q235B for the base material and H08Mn2SiA for the welding wire.
Acknowledgment This work is supported by National Natural Science Foundation of China (No.11272084), PetroChina Innovation Foundation (No.2015D-5006-0602), and Postdoctoral Science Research Developmental Foundation of Chinese Heilongjiang Province (No.LBH-Q13035).
[4] M X Xu, Z H Chen, M Q Xu, J M Fan, Mechanism of Magnetic Memory Signal Variation in the Process of Fatigue, J.Journal of Mechanical Engineering. 50 (2014) 53-58
Materials Science&Technology. 23 (2015) 33-38
Experiments The tabular welded specimens are made of steel Q235B for the base material and H08Mn2SiA for the welding wire.
Acknowledgment This work is supported by National Natural Science Foundation of China (No.11272084), PetroChina Innovation Foundation (No.2015D-5006-0602), and Postdoctoral Science Research Developmental Foundation of Chinese Heilongjiang Province (No.LBH-Q13035).
[4] M X Xu, Z H Chen, M Q Xu, J M Fan, Mechanism of Magnetic Memory Signal Variation in the Process of Fatigue, J.Journal of Mechanical Engineering. 50 (2014) 53-58
Materials Science&Technology. 23 (2015) 33-38
Online since: September 2019
Authors: Mourad Zaabat, Khaoula DERRAR, Imededdine Zerrouk, Nouhad Rouabah, Brahim Gasmi, Abdelkader Hafdallah
Loudusamy, International Journal of Physical Sciences. 9 (2009) 261-266
Vickraman, Journal of Materials Science: Materials in Electronics. 21 (2010) 578-583
Attaf, Afrique Science. 12 (2016) 26–33
Zeggar, L.Chabane, Materials Science in Semiconductor Processing. 30 (2015) 645–650
Jeyadheepan, Asian journal of applied science. 8 (2015) 259-268
Vickraman, Journal of Materials Science: Materials in Electronics. 21 (2010) 578-583
Attaf, Afrique Science. 12 (2016) 26–33
Zeggar, L.Chabane, Materials Science in Semiconductor Processing. 30 (2015) 645–650
Jeyadheepan, Asian journal of applied science. 8 (2015) 259-268
Online since: January 2013
Authors: Hong Tao Jiang, Wei Hua, Hui Quan Li, Yong Chuan Dai
Recent Progresses on Some Coke Resistant Ni-based Catalysts for Carbon Dioxide Reforming of Methane
Hongtao JIang*1, a, Wei Hua1, 2, b, Huiquan Li3, c and Yongchuan Dai2, d
1 College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou, China
2 School of Petrochemical Engineering, Liaoning Shihua University, Fushun, China
3 Institute of Process and Engineering, Chinese Academy of Sciences, Beijing, China
ajht@zjut.edu.cn, bhuawei_1204@126.com, chqli@ipe.ac.cn, dych_dasic@yahoo.com.cn
Keywords: Methane; Reforming; Coke Resistant; Ni catalysts
Abstract.
The progresses in the use of promoters, in the effect of supporting materials and in the preparation methods have been discussed.
Hexaaluminate or substituted hexaaluminate Hexaaluminates materials have defined structures, they contain alkali or rare earth oxides and a-alumina which were indicated as preventing coke formation [26].
Zeolites and Related Materials: Trends, Targets and Challenges, Proceedings of the 4th International Feza Conference.
Journal of Power Sources.
The progresses in the use of promoters, in the effect of supporting materials and in the preparation methods have been discussed.
Hexaaluminate or substituted hexaaluminate Hexaaluminates materials have defined structures, they contain alkali or rare earth oxides and a-alumina which were indicated as preventing coke formation [26].
Zeolites and Related Materials: Trends, Targets and Challenges, Proceedings of the 4th International Feza Conference.
Journal of Power Sources.