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Online since: July 2016
Authors: Chang An Wang, Xin Chun Luo
China
a568661351@qq.com, b*wangca@mail.tsinghua.edu.cn
Keywords: geopolymer, polyacrylonitrile fibers, mechanical properties
Abstract: This paper investigated mechanical properties and microstructure of metakaolin/slag based geopolymers reinforced by short polyacrylonitrile (PAN) fibers.
Mechanical properties of the geopolymers.
This agrees well with the mechanical properties tested in the above text.
Rubina,Mechanism of geopolymerization and factors influencing its development: A review, J.
Preparation and mechanical properties of polypropylene fiber reinforced calcined kaolin-fly ash based geopolymer, J.
Mechanical properties of the geopolymers.
This agrees well with the mechanical properties tested in the above text.
Rubina,Mechanism of geopolymerization and factors influencing its development: A review, J.
Preparation and mechanical properties of polypropylene fiber reinforced calcined kaolin-fly ash based geopolymer, J.
Online since: October 2014
Authors: Yong Dong Wang, Xing Liu, Bai Ru Li
After hot pressed, A2B2C1 combination obtained the highest mechanical properties.
The studied results show that the powders fabricated by mechanical alloying can improve sintering character of powders and affected the properties of mechanically alloyed materials [7, 8], which was significantly influenced by milling variables [9-13].
Microstructure and mechanical properties of hot-pressing materials.
The reason and mechanism of change of room temperature mechanical properties were perhaps caused by the increasing of Fe content, or also by other factors, which need to be further investigated.
After hot pressed, the Fe atoms dissolved into Nb lattices decreased the mechanical properties of Nb-30W alloy.
The studied results show that the powders fabricated by mechanical alloying can improve sintering character of powders and affected the properties of mechanically alloyed materials [7, 8], which was significantly influenced by milling variables [9-13].
Microstructure and mechanical properties of hot-pressing materials.
The reason and mechanism of change of room temperature mechanical properties were perhaps caused by the increasing of Fe content, or also by other factors, which need to be further investigated.
After hot pressed, the Fe atoms dissolved into Nb lattices decreased the mechanical properties of Nb-30W alloy.
Online since: May 2011
Authors: Jian Bin Hao, Yu Ming Men
Gradually, anchor is in the working state of tension, but its stress becomes rather complicated when influenced by some external factors such as water, ground loads, etc.
Among all the influencing factors, ground additional loads and water are much more common.
Physical & mechanical properties of the model clay are given in Table 1.
The upper row anchor is greatly affected by the bending moment, especially near the slide face where the bending moment is maximal
References [1] Phillips S.H.E: Factors affecting the design of anchorages in rock (Cementation Research Ltd., London 1970)
Among all the influencing factors, ground additional loads and water are much more common.
Physical & mechanical properties of the model clay are given in Table 1.
The upper row anchor is greatly affected by the bending moment, especially near the slide face where the bending moment is maximal
References [1] Phillips S.H.E: Factors affecting the design of anchorages in rock (Cementation Research Ltd., London 1970)
Online since: September 2013
Authors: Guo Min Lin, Wen Guang Zhang, Jiao Jiao Ye, Miao Shang
The functional relationship is analyzed between three-phase asynchronous motor electromagnetic torque and some factors; Mechanical characteristic curve of motor performance is drawn; The inherent mechanical properties and human mechanical properties are explored in a specific application.
The torque of three-phase asynchronous motor effects on mechanical properties The rated torque.
Classification of mechanical characteristics of three-phase asynchronous motor Inherent mechanical properties.
The mechanical properties determined by the inherent parameters of the motor.
Artificial mechanical properties is the result of artificially change the motor or power parameter.
The torque of three-phase asynchronous motor effects on mechanical properties The rated torque.
Classification of mechanical characteristics of three-phase asynchronous motor Inherent mechanical properties.
The mechanical properties determined by the inherent parameters of the motor.
Artificial mechanical properties is the result of artificially change the motor or power parameter.
Online since: April 2007
Authors: Lei Yang, Xiao Shan Ning, He Ping Zhou, Ke Xin Chen, Jie Zhang, Qun Fang Xiao
Factors Affecting the Pore Size in Porous Hydroxyapatite Produced
by Stir-Froth-Polymerization Method
Zhang Jie, Ning Xiaoshan∗, Xiao Qunfang, Yandg Lei, Chen Ke-Xin and
Zhou He-ping
State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and
Engineering, Tsinghua University, Beijing 100084, China
Keywords: stir-froth-polymerization, porous ceramics, pore size, Reynolds number
Abstract.
This paper focuses on the mechanism of frothing, and the influence of parameters in the mechanical frothing.
Comparing with other methods, such process is more competent due to the simpler equipments, wider range of adjustable pore size, spherical shaped cells, relatively better mechanical properties, and low content of organics.
This indicates that the formation of pores is affected by the intensity of disturbing flows caused during the foaming process.
The Reynolds number Re (=ρvD/η) reflects the disorder of the slurry, which affects the distribution of the pore size.
This paper focuses on the mechanism of frothing, and the influence of parameters in the mechanical frothing.
Comparing with other methods, such process is more competent due to the simpler equipments, wider range of adjustable pore size, spherical shaped cells, relatively better mechanical properties, and low content of organics.
This indicates that the formation of pores is affected by the intensity of disturbing flows caused during the foaming process.
The Reynolds number Re (=ρvD/η) reflects the disorder of the slurry, which affects the distribution of the pore size.
Online since: April 2014
Authors: Yong Hong Liu, Jie Li, Wei Shao
Influence of heat-treatment on mechanical properties and wear resistance of ultra-high Mn steel
Yong-hong Liua, Jie Lia, Wei Shaoa
Central Institute of R&D, SANY Group, Changsha, China, 410100
alij73@sany.com.cn
Keywords: ultra-high Mn steel; heat-treatment; mechanical properties;
Abstract: The influence of heat-treatment on mechanical properties and wear resistance of ultra-high Mn steel was studied, micro-structure and fracture surface were analyzed by optical microscope(OM) and selected electron microscope(SEM).
According to the results, optimized heat-treatment makes improvement in mechanical properties, and dispersed tiny carbides precipitate on Austenite matrix instead of grain boundary contributes to the excellent mechanical properties and wear resistance.
Table 1 shows the mechanical properties at different heat-treatment.
According to the results, better mechanical properties, i.e., higher strength and higher impact toughness, could be reached by optimized heat-treatment III.
References [1] ZHOU Ting-dong, WEI Cheng-fu, LUAN Dao-cheng, The factors of influencing super high Manganese steel’s properties, Foundry, 50(2001) 632-633.
According to the results, optimized heat-treatment makes improvement in mechanical properties, and dispersed tiny carbides precipitate on Austenite matrix instead of grain boundary contributes to the excellent mechanical properties and wear resistance.
Table 1 shows the mechanical properties at different heat-treatment.
According to the results, better mechanical properties, i.e., higher strength and higher impact toughness, could be reached by optimized heat-treatment III.
References [1] ZHOU Ting-dong, WEI Cheng-fu, LUAN Dao-cheng, The factors of influencing super high Manganese steel’s properties, Foundry, 50(2001) 632-633.
Online since: February 2017
Authors: Mohd Amri Lajis, Syaiful Nizam Ab Rahim
Effects on Mechanical Properties of Solid State Recycled Aluminium 6061 by Extrusion Material Processing
S.N.
The effects of extrusion parameters on the mechanical properties of the produced recycled 6061 aluminium alloy were investigated.
Using a maximum extrusion speed will definitely affect the more significant factors, influencing the cost and efficiency of the extrusion process.
Mabuchi, Mechanical and Corrosion Properties of AZ31 Magnesium Alloy Repeatedly Recycled by Hot Extrusion, Mater.
Wu, Effect of extrusion ratio on mechanical and corrosion properties of AZ31B alloys prepared by a solid recycling process, J.
The effects of extrusion parameters on the mechanical properties of the produced recycled 6061 aluminium alloy were investigated.
Using a maximum extrusion speed will definitely affect the more significant factors, influencing the cost and efficiency of the extrusion process.
Mabuchi, Mechanical and Corrosion Properties of AZ31 Magnesium Alloy Repeatedly Recycled by Hot Extrusion, Mater.
Wu, Effect of extrusion ratio on mechanical and corrosion properties of AZ31B alloys prepared by a solid recycling process, J.
Online since: August 2011
Authors: Xin Wei, Xiang Dong Yang, Zhuo Chen, Wei Bo Zou, Xiao Zhu Xie
Currently, CMP has too many influencing factors which lead the process to be more complex.
The wafer speed will affect the speed of the abrasives through the wafer.
(5) Where, k is the adsorption coefficient which is relative to the the abrasive material's properties, surface morphology and surface free energy and its work environments.
As Preston’s equation, the models that have been published in the last decades, still cannot quantitatively explained how the polishing pads' material properties and its surface morphological features, polishing slurries' chemical characteristics, the abrasives' size and concentration’s influence on the CMP process.
In CMP process, the appropriate balance between chemical and mechanical factors can reduce the wafer's roughness so as to obtain higher surface shape precision and ensure the surface quality [11,12].
The wafer speed will affect the speed of the abrasives through the wafer.
(5) Where, k is the adsorption coefficient which is relative to the the abrasive material's properties, surface morphology and surface free energy and its work environments.
As Preston’s equation, the models that have been published in the last decades, still cannot quantitatively explained how the polishing pads' material properties and its surface morphological features, polishing slurries' chemical characteristics, the abrasives' size and concentration’s influence on the CMP process.
In CMP process, the appropriate balance between chemical and mechanical factors can reduce the wafer's roughness so as to obtain higher surface shape precision and ensure the surface quality [11,12].
Online since: May 2011
Authors: Li Zheng, Zhi Ge, Ren Juan Sun
This paper studied the mechanical properties of concrete with cement partially replaced by recycled clay-brick-powder.
The analysis was to compare the significance level of different factors’ effect on concrete properties.
The sum of squares (SS), degree of freedom (DF), F value (F) and mean squared (MS) of different factors on concrete mechanical properties were summarized in Table 5.
(2) W/C is the most important factors affecting concrete mechanical properties.
“Mechanical properties of brick aggregate concrete .”
The analysis was to compare the significance level of different factors’ effect on concrete properties.
The sum of squares (SS), degree of freedom (DF), F value (F) and mean squared (MS) of different factors on concrete mechanical properties were summarized in Table 5.
(2) W/C is the most important factors affecting concrete mechanical properties.
“Mechanical properties of brick aggregate concrete .”
Online since: November 2019
Authors: S.P. Shivakumar, A.S. Sharan, K. Sadashivappa
Generally pure metals and its alloys may have fairly good mechanical properties but falls short in damping properties.
Introduction Damping properties of the material aids in absorbing and dissipation of mechanical vibrations during cyclic loading.
Recently, it has been reported that the damping capacity of AMCs is influenced by several factors [7, 8].
Smaller the size of the particle greater will be the damping properties.
Factors affecting the damping capacity of cast aluminum-matrix composites.
Introduction Damping properties of the material aids in absorbing and dissipation of mechanical vibrations during cyclic loading.
Recently, it has been reported that the damping capacity of AMCs is influenced by several factors [7, 8].
Smaller the size of the particle greater will be the damping properties.
Factors affecting the damping capacity of cast aluminum-matrix composites.