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Online since: August 2013
Authors: Cong Bo Li, Zhen Feng Zhan
If use low calcium fluidized bed boiler fly ash to produce fried bricks, not only the carbon contains in low calcium fluidized bed boiler fly ash can be used , but also land resources can be saved, It achieves that the effective utilization of industrial waste, new wall materials of environmentally friendly and energy saving can be produced.
Raw materials and test 2.1 Raw materials and experimental design The chemical composition of fly ash and clay as shown in Table1-1 and Table 1-2.
Experimental raw material use after crushing, drying at 105 °Cand screening.
Under the same forming pressure conditions, the dense degree of blank decline as fly ash increasing, The point of contact between the materials inside blank reduces, Thus it is difficult to sinter when the fly ash is added, the water absorption increases, physical properties decline. 4.
Fuel. 1995 [4] LUO Yuping1,2,WANG Lijiu1,SU Liqing3,Ma Liguo2,Wu Guiqin2 Comparison Research on the Performance of Fly Ash and Comprehensive Utilization Discussion [J], Journal of Shenyang Jinzhou University(Natural Science), 2007.3
Raw materials and test 2.1 Raw materials and experimental design The chemical composition of fly ash and clay as shown in Table1-1 and Table 1-2.
Experimental raw material use after crushing, drying at 105 °Cand screening.
Under the same forming pressure conditions, the dense degree of blank decline as fly ash increasing, The point of contact between the materials inside blank reduces, Thus it is difficult to sinter when the fly ash is added, the water absorption increases, physical properties decline. 4.
Fuel. 1995 [4] LUO Yuping1,2,WANG Lijiu1,SU Liqing3,Ma Liguo2,Wu Guiqin2 Comparison Research on the Performance of Fly Ash and Comprehensive Utilization Discussion [J], Journal of Shenyang Jinzhou University(Natural Science), 2007.3
Online since: October 2008
Authors: Antonella M. Rossi, Marize Varella de Oliveira, Ieda Maria V. Caminha, Silvia R. A. Santos, Robson Pacheco Pereira, Magna Monteiro Schaerer
However, the dependence of hardness on grain size does not show a single trend that applies to
every ceramic material [6].
Materials and Methods Stoichiometric synthetic HA powders with 1.66 Ca/P molar ratio was uniaxially compacted into an 8.4 mm diameter cylindrical die at 180 and 250 MPa and sintered in air during 6 hours at 1000 oC with a heating rate of 3 oC/min.
These values are very high considering ceramic materials processing.
Vickers hardness (VH) tests are in course, in order to analyze larger areas, being more representative of the whole material property.
Journal of Materials Science: Materials in Medicine, vol. 6 (1995), p. 8-3
Materials and Methods Stoichiometric synthetic HA powders with 1.66 Ca/P molar ratio was uniaxially compacted into an 8.4 mm diameter cylindrical die at 180 and 250 MPa and sintered in air during 6 hours at 1000 oC with a heating rate of 3 oC/min.
These values are very high considering ceramic materials processing.
Vickers hardness (VH) tests are in course, in order to analyze larger areas, being more representative of the whole material property.
Journal of Materials Science: Materials in Medicine, vol. 6 (1995), p. 8-3
New Technology of Preparation of TiO2/Tourmaline by Dry Coated Method and its Application in Coating
Online since: July 2012
Authors: Ping Wang, Wen Qian Xu, Ting Li Wang, Zhi Feng Li, Chun Xiang Wang, Wei Guo, Su Ying Wu
College of Materials and Science Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, China, 34100
2.
College of Science and Application, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, China, 341000 3.
Most scholars adopt TiO2 chemical coating method, such as Ding Hao[5], who explored the tourmaline/TiO2 composite material composed of microscopic morphology, the results showed that tourmaline / TiO2 composite materials were composed of the packet core tourmaline coated particles and the surface crystalline TiO2, which form uniform and solid coating in the surface of tourmaline.
[5] Hao Ding,Yanpeng Cha,Ruichen Ren.Composition and micro morphology of composite powder of tourmaline/TiO2 [J].Journal of Liaoning Project Technology University,2007, 26:188~190
Academic journal of heat treatment on material,2010,31 (12) :9~13 [10] Zhiguo Li.Research on surface free energy of tourmaline influenced by heat treatment [D]Hebei:Hebei University of Technology,2007
College of Science and Application, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, China, 341000 3.
Most scholars adopt TiO2 chemical coating method, such as Ding Hao[5], who explored the tourmaline/TiO2 composite material composed of microscopic morphology, the results showed that tourmaline / TiO2 composite materials were composed of the packet core tourmaline coated particles and the surface crystalline TiO2, which form uniform and solid coating in the surface of tourmaline.
[5] Hao Ding,Yanpeng Cha,Ruichen Ren.Composition and micro morphology of composite powder of tourmaline/TiO2 [J].Journal of Liaoning Project Technology University,2007, 26:188~190
Academic journal of heat treatment on material,2010,31 (12) :9~13 [10] Zhiguo Li.Research on surface free energy of tourmaline influenced by heat treatment [D]Hebei:Hebei University of Technology,2007
Online since: July 2022
Authors: Artemisia L. Caldas, Monique Caldas Souza, Miguel A. Carvalho
Considering the identified needs, materials and methods were suggested for the development of models with specific particularities, appropriate to the real condition of these elderly women.
Materials and Methods To carry out the validation of the research, materials selected for application in different stages were used.
In this stage of the research, it was possible to test different materials for the production of a button with comfort characteristics, having been produced several prototypes in a 3D printer (model Prusa 13) with the raw material in the format of a flexible filament, called thermoplastic elastomer (TPE) – adherent and elastic material.
This work is supported by FEDER funds through the Competitive Factors Operational Program (COMPETE) POCI-01-0145-FEDER-07136 and by national funds through Portuguese Foundation for Science and Technology (FCT), under the project UID/CTM/00264 financed by Science Without Borders/CAPEs.
International Journal of Industrial Ergonomics, v. 26, n. 3, p.425-435
Materials and Methods To carry out the validation of the research, materials selected for application in different stages were used.
In this stage of the research, it was possible to test different materials for the production of a button with comfort characteristics, having been produced several prototypes in a 3D printer (model Prusa 13) with the raw material in the format of a flexible filament, called thermoplastic elastomer (TPE) – adherent and elastic material.
This work is supported by FEDER funds through the Competitive Factors Operational Program (COMPETE) POCI-01-0145-FEDER-07136 and by national funds through Portuguese Foundation for Science and Technology (FCT), under the project UID/CTM/00264 financed by Science Without Borders/CAPEs.
International Journal of Industrial Ergonomics, v. 26, n. 3, p.425-435
Online since: August 2015
Authors: Khemais Saanouni, Zhi Dan Sun, Mohamed Ali Dhifallah, Yisa Li, Jean Louis Duval, Carl Labergere
Introduction
Since many years, different authors developed fatigue models within the framework of continuum damage mechanics applied to metallic materials “CDM”.
Guo, Numerical modeling of fatigue damage and fissure propagation under cyclic loadings” International Journal of Damage Mechanics, (2008), Vol 17, pp 173-187 [3] J.L.
Fatigue and fracture of engineering materials and structures (1988), vol 11, pp 1-17 [4] Chow C.L. and Wei Y.
Rassineux, “Numerical prediction of thermomechanical field localization in orthogonal cutting”, CIRP Journal of Manufacturing Science and technology, (2012), Vol 3, pp 175-195 [6] C.
Lévëque, A computational damage mechanics approach for laminates : identification and comparison with experimental results, Damage Mechanics in Engineering Materials, (1998) pp 500 [8] J.
Guo, Numerical modeling of fatigue damage and fissure propagation under cyclic loadings” International Journal of Damage Mechanics, (2008), Vol 17, pp 173-187 [3] J.L.
Fatigue and fracture of engineering materials and structures (1988), vol 11, pp 1-17 [4] Chow C.L. and Wei Y.
Rassineux, “Numerical prediction of thermomechanical field localization in orthogonal cutting”, CIRP Journal of Manufacturing Science and technology, (2012), Vol 3, pp 175-195 [6] C.
Lévëque, A computational damage mechanics approach for laminates : identification and comparison with experimental results, Damage Mechanics in Engineering Materials, (1998) pp 500 [8] J.
Online since: May 2012
Authors: Yan Ping Zhang, Shu Hong Huang, Jian Lan Li, Ya Wen Zhang
The static initial investment include thermal energy storage medium, thermal energy storage tank, insulation materials, bearing structure and land expenses, and the dynamic operation costs include energy consumption during operation, heat loss, thermal energy storage medium loss, maintenance costs, etc..
Therefore, insulation material should be set around tank.
Material parameters are shown in table 1- table 3.
Table 1 Performance of Specific heat capacity (J/kg.k) Density (kg/m3) Stable temperature (℃) Thermal conductivity (w/m.k) Unit (¥/kg) 1495 1837 220-600 0.519 4 Table 2 Performance of steal Material Tensile strength (MPa) Yield strength (MPa) Density (g/cm3) Melting point (℃) Unit (¥/kg) #316 stainless steel ≥520 ≥205 7.98 1398~1420 25 #45 steel ≥600 ≥355 7.85 1240~1450 5.2 Table 3 Performance of other material Material Specific heat capacity (J/kg.k) Heat temperature (℃) Density (kg/m3) Unit (¥/m3) non-asbestos calcium silicate 0.062 650 220 600 foam glass 0.048 500 140-200 1600 insulating firebrick 0.035 1650 45 1800 firebrick 0.056 1670 45 1800 According to the materials’ performance, components’ cost and overall cost of thermal energy storage system are shown in Fig.2 and Fig.3.
[4] Yang X P and Yang X X: Journal of engineering for thermal energy and power, Vol. 26(2011), p.1-6 (in Chinese)
Therefore, insulation material should be set around tank.
Material parameters are shown in table 1- table 3.
Table 1 Performance of Specific heat capacity (J/kg.k) Density (kg/m3) Stable temperature (℃) Thermal conductivity (w/m.k) Unit (¥/kg) 1495 1837 220-600 0.519 4 Table 2 Performance of steal Material Tensile strength (MPa) Yield strength (MPa) Density (g/cm3) Melting point (℃) Unit (¥/kg) #316 stainless steel ≥520 ≥205 7.98 1398~1420 25 #45 steel ≥600 ≥355 7.85 1240~1450 5.2 Table 3 Performance of other material Material Specific heat capacity (J/kg.k) Heat temperature (℃) Density (kg/m3) Unit (¥/m3) non-asbestos calcium silicate 0.062 650 220 600 foam glass 0.048 500 140-200 1600 insulating firebrick 0.035 1650 45 1800 firebrick 0.056 1670 45 1800 According to the materials’ performance, components’ cost and overall cost of thermal energy storage system are shown in Fig.2 and Fig.3.
[4] Yang X P and Yang X X: Journal of engineering for thermal energy and power, Vol. 26(2011), p.1-6 (in Chinese)
Online since: December 2024
Authors: Cerdan Solier Miguel Angel, Malena Serrano
As rural areas are increasingly urbanized, reports indicate excessive use of materials for concrete production.
It is necessary to investigate new materials for generating more environmentally friendly concrete.
Materials and Properties In this section, the essential materials for the development of the research are considered, including cement, oat husk ash, coarse aggregate, fine aggregate, and CDW.
Materials, 14(18). doi: https://doi.org/10.3390/ma14185429 [6] L.
Construction and Building Materials, 234. doi: https://doi.org/10.1016/j.conbuildmat.2019.117366 [8] Wagan, I.
It is necessary to investigate new materials for generating more environmentally friendly concrete.
Materials and Properties In this section, the essential materials for the development of the research are considered, including cement, oat husk ash, coarse aggregate, fine aggregate, and CDW.
Materials, 14(18). doi: https://doi.org/10.3390/ma14185429 [6] L.
Construction and Building Materials, 234. doi: https://doi.org/10.1016/j.conbuildmat.2019.117366 [8] Wagan, I.
Online since: October 2014
Authors: Petr Konvalinka, Pavel Reiterman, Ondřej Holčapek
Very discussed topic of modern building materials is issue of high performance or ultra-high performance concrete with compressive strength over 150 MPa, usually reinforce with fibers of various materials [1].
[2] Vogel, F., Sovják, R., Jogl, M., 2013, Experimental tests of UHPC in triaxial compression, Applied Mechanics and Materials, Vol. 486, pp. 78-83, ISBN 978-3-03785-977-3
[3] Koňáková, D., Vejmelková, E., Špedlová, V., Polozhiy, K., Černý, R., 2014, Cement Composites for High Temperature Applications, Mechanical, Advanced Materials Research, Vol. 982, pp. 154-158
Xu, Dynamic Compressive Behavior of Ceramic Fiber Reinforced Concrete Under Impact Load, Construction and Building Materials Volume 45, (2013), pp. 475-488
Czigány, Effect of Fiber Surface Treatment on the Mechanical Response of Ceramic Fiber Material-Reinforced Interpenetrationg Vinyslester/Epoxy Resin, Composites Science and Technology, (2004), pp. 1717-1723
[2] Vogel, F., Sovják, R., Jogl, M., 2013, Experimental tests of UHPC in triaxial compression, Applied Mechanics and Materials, Vol. 486, pp. 78-83, ISBN 978-3-03785-977-3
[3] Koňáková, D., Vejmelková, E., Špedlová, V., Polozhiy, K., Černý, R., 2014, Cement Composites for High Temperature Applications, Mechanical, Advanced Materials Research, Vol. 982, pp. 154-158
Xu, Dynamic Compressive Behavior of Ceramic Fiber Reinforced Concrete Under Impact Load, Construction and Building Materials Volume 45, (2013), pp. 475-488
Czigány, Effect of Fiber Surface Treatment on the Mechanical Response of Ceramic Fiber Material-Reinforced Interpenetrationg Vinyslester/Epoxy Resin, Composites Science and Technology, (2004), pp. 1717-1723
Online since: August 2014
Authors: Anton Panda, Eva Vitikáč Batešková
Bičejová, Water jet technology head vibration generation due to selected technology parameters fluctuation effect during alloy cutting, Applied Mechanics and Materials 308 2013 81-86
Bičejová, Abrasive kind and granularity changes affects to water jet technology head vibration during cutting HARDOX material thickness alternation process, Applied Mechanics and Materials 308 (2013) 75-79
Haľko, Design strength calculation of cycloidal lantern gear, (2013), BarSU Herald Scientific and practical journal: Physical and Mathematical Sciences: Engineering Sciences, p. 58-65
Dubayová, Natural and modified clinoptilolite testing for reduction of harmful substance in manufacturing exploitation, Advanced Materials Research 518-523 (2012) 1757-1760
Michal, The Influence of Sodium Chloride on the Resulting AAO Film Thickness, Advanced Materials Research 816-817 (2013) 18-22.
Bičejová, Abrasive kind and granularity changes affects to water jet technology head vibration during cutting HARDOX material thickness alternation process, Applied Mechanics and Materials 308 (2013) 75-79
Haľko, Design strength calculation of cycloidal lantern gear, (2013), BarSU Herald Scientific and practical journal: Physical and Mathematical Sciences: Engineering Sciences, p. 58-65
Dubayová, Natural and modified clinoptilolite testing for reduction of harmful substance in manufacturing exploitation, Advanced Materials Research 518-523 (2012) 1757-1760
Michal, The Influence of Sodium Chloride on the Resulting AAO Film Thickness, Advanced Materials Research 816-817 (2013) 18-22.
Online since: June 2013
Authors: Bai Lin Zha, Su Lei Qiao, Ding Yuan Huang, Wei He, Zhi Hong Zha, Xiang Bin Li
Introduction
In materials science, the research of nanometer materials shows that the nano material has higher hardness and strength, better toughness and plastic compared with the traditional materials.
Coating material and craft. 45 # steel is used in test for substrate materials, and WC-12Co nano powder is provided by inframat corporation, its commercial grades is S7412, crystallite size of powder is about 50 ~ 500 nm, powder particle size after reuniting is 1~ 45m.
Journal of Thermal Spray Technology, 2010, 19(1-2):358-366
High Velocity Oxygen/Air Fuel Spray, Thermal Spray 2003: Advancing the Science & Applying the Technology, Published by ASM International, Materials Park, Ohio, USA, 2003 789~791
[J].Materials for Mechanical Engineering,2007,31(4):17-24.
Coating material and craft. 45 # steel is used in test for substrate materials, and WC-12Co nano powder is provided by inframat corporation, its commercial grades is S7412, crystallite size of powder is about 50 ~ 500 nm, powder particle size after reuniting is 1~ 45m.
Journal of Thermal Spray Technology, 2010, 19(1-2):358-366
High Velocity Oxygen/Air Fuel Spray, Thermal Spray 2003: Advancing the Science & Applying the Technology, Published by ASM International, Materials Park, Ohio, USA, 2003 789~791
[J].Materials for Mechanical Engineering,2007,31(4):17-24.