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Online since: September 2022
Authors: Setyawan Bonifacius, Rasmi Rikmasari, Novi Sagita Rizky
Zirconia is one of the materials used in prosthetic restoration because of its better physical, mechanical, chemical, and biological properties.
Several factors affect sandblasting, namely particle size, pressure, time, and distance used [12,16].
The bonding of zirconia with this resin cement can improve the mechanical properties of zirconia restorations [7,15,16].
Factors that affect surface roughness in sandblasting include particle size, pressure, distance, and duration of spraying [12,16].
An overview of zirconia ceramics: Basic properties and clinical applications.
Online since: December 2012
Authors: Zheng Yuan Wei, Shu Lei Zhao, Xiao Tian Ding, Qiang Lin
In this paper, we investigated the impact of four different drying methods on paper physical properties.
Their physical properties were determined after being balanced for 24 hours.
Factors which affect the tensile strength most are the binding force between the fibers and the strength of the fibers, then the length of the fiber.
Conclusions In this paper, we examined the impact of different drying conditions on the paper physical properties.
Rocha, Drying conditions influence on physical properties of recycled paper, Chem.
Online since: January 2013
Authors: Jun Zhang
Factors such as agent concentration, pH, and curing temperature and time which affect the moisture management property were investigated by virtue of the wicking height and fast drying time, and then the optimum conditions of finishing were determined.
The other physico-mechanical properties of the fabrics finished under the optimum condition were also detected.
Results and Discussion Factors Affecting Wicking Height and Fast Drying Time.
Physico-mechanical properties.
Therefore, the moisture finishing not only meliorates the moisture management property of polyester fabric but also improves the physico-mechanical properties as well as the comfortable performance.
Online since: August 2014
Authors: Xiao Li Chen, Hong Wei Shi, Xiao Guang Song, Hong Chao Wang, Hao Gong
It has high insulating strength, good mechanical properties, fire prevention, moistureproof etc.
The internal structure of transformer is more complex, inserting a large inlay (the body), which demands more anti cracking properties of materials.
The forming process of product would be influenced by external environment and other uncertain factors, which requires the processing properties of materials is good, exhibiting broad applicable scope and reducing the effect of uncertain factors’ degree and range.
The common process parameters were shown as follows: Table 3 Process parameters Process Parameters silica pre-drying process (70~150)℃/(5~20)h,then cooling to(20~70)℃ in the furnace body pre-drying process (100~150)℃/(5~20)h mold heating temperature (100~150)℃ Pouring speed (0.5~3.5)kg/min The quantity and holding time of pressure (0.2~0.6)MPa,keeping time(20~50)min Curing process (100~150)℃/(10~30)h, then cooling to room temperature in the furnace 4 Analysis of the factors affecting partial discharge experiment The biggest quality problem of casting transformer is partial discharge experiment ineligible.
The existence of internal partial discharge may result in the dielectric properties of the insulating medium exacerbation and the insulation breakdown ultimately.
Online since: December 2012
Authors: Yi Ming Wang, Shu Qin Wu, Lei Zhang, Jian Guo Li, Ming Ming Zhao
The stability and performance of the web running is one of the key factors of printing quality.
Sun Yuqiu [6] analysis and research paper tape tension control mechanism, arrive at tension control system that tape the influence factors and the problem need to be solved in control.
There are many factors affecting the changes in tension and is a non-linear change.
After import the paper tape’s solidworks file X_T to the Ansys software, define the material properties and parameters, Elastic modulus of 120GPa, Poisson's ratio of 0.3, a density of 1450, meshing solid 187 units.
(2) Established by theoretical analysis and calculation of the paper roll unwinding kinetics model and post-tension control part of the swing roller mathematical model, get several key factors that affect the tape tension, pointed out the key to ensure high-speed web presses is the stability of paper tape
Online since: April 2015
Authors: Jarosław Konieczny, Krzysztof Labisz, Anna Janina Dolata
Structure and functional properties of surface layer produced on cast aluminium light alloys by appliance of anodisation Jarosław Konieczny 1, a *, Krzysztof Labisz 1, b, Anna J.
Krasińskiego 8, 40-019 Katowice, Poland a jaroslaw.konieczny@polsl.pl, b krzysztof.labisz@polsl.pl, c anna.dolata@polsl.pl Keywords: anodisation, mechanical properties, roughness, surface treatment, aluminium alloys Abstract The aim of the work is presents the influence of casting method and anodic treatment parameters on properties, thickness and structure of an anodic layer formed on aluminium casting alloys.
In other words the applying of anodic layer does not affect the geometry profile of surface.
Labisz, Microstructure and mechanical properties of HPDL laser treated cast aluminium alloys, Materials Science and Engineering Technology 2014, Mat.
Sieniawski, Effect of morphology of eutectic silicon crystals on mechanical properties and cleavage fracture toughness of AlSi5Cu1 alloy, Journal of Achievements in Materials and Manufacturing Engineering, Volume 14, Issue 1-2, January-February 2006, pp. 31-36
Online since: March 2013
Authors: Yang Liu, Xian De Zhu, Chen Ye Wan
The impacts of mechanical parameters in DEM model on the numerical results were analyzed.
The initial porosity, which directly determines the initial density of the sample, will affect the mechanical properties of the sample.
The impacts of mechanical parameters in DEM model on the numerical results were analyzed.
The parameters of the sand samples are shown in Table 2 0.165 Time step/´104 0.5 1.5 3.5 2.5 Porosity 0.185 0.205 0.195 0.175 (a) (b) Fig. 3 Hierarchical compaction method generates sand samples and porosity changes Table. 2 Gravity descent methods to generate the parameter of the sand samples /m /m /m hf /m /kg/m3 kn /N/m Ks /N/m kw /N/m N0 0.12´0.06 0.001 0.00075 1 2630 5´108 5´108 5´107 0.5 3000 Analysis of influencing factors The discrete element method to simulate the actual sample, the mechanical properties of the soil particles, in the choice of constitutive model parameters we used to be our numerical simulation influential. we mainly change the parameters to prepare sand samples, and study the influence parameters have on the process of generating sand samples.
Different parameters will affect the porosity of the sand samples, and porosity determines the initial sample density, and will affect the mechanical properties of the sample as a results.
Online since: December 2010
Authors: Ming Qing Sun, Zheng Tao Hou, Bin Li, Xie Dong Zhang
Both the mixing time and the curing period can affect the electrical and mechanical properties of CF/CB reinforced concrete.
Both electrical and mechanical properties of CFRC with different contents of CF are studied.
Mechanical Properties and Resistivity Measurement.
These factors cause compressive strength decreasing.
(3) Both the mixing time and the curing period can affect the electrical and mechanical properties of CF/CB reinforced concrete.
Online since: December 2012
Authors: An Pang Chen, Ching Wen Lou, Mei Chen Lin, Jan Yi Lin, Jia Horng Lin, Jin Mao Chen
Manufacturing Techniques and Mechanical Properties of Recycle High-Strength PET Compound Nonwoven Ching-Wen Lou1, b, An-Pang Chen2, Jan-Yi Lin2, Mei-Chen Lin2, Jin-Mao Chen2,c and Jia-Horng Lin2,3,a 1Institute of Biomedical Engineering and Material Science, Central Taiwan University of Science and Technology, Taichung 406, Taiwan, R.O.C. 2Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung City 407, Taiwan, R.O.C. 3School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan, R.O.C.
Afterwards, the mechanical properties of the PET compound nonwoven was measured both at cross direction and machine direction.
Its strength is affected by three influencing factors including the reactive temperature, retention period, nitrogen purity at solid phase polymerization[1-2].
In the experiment, the ratio of high-strength polyester fiber was changed to evaluate the mechanical properties of high-strength PET compound nonwoven fabrics at cross direction (CD) and machine direction (MD).
And recycle high-strength polyester fiber has the benzene molecular chain, high crystallize and high orientation, which is responsible to its high mechanical property.
Online since: November 2010
Authors: Wei Da Xu, Wei Zhou, Jia Yue Sun, Hai Yan Du
The optical, mechanical and thermal properties of the ultraviolet-cured sealant were investigated with ultraviolet-visible spectrometer, tensile machine and differential scanning calorimetry, respectively.
The optical, mechanical and thermal properties of the UV-cured sealant were characterized by ultraviolet-visible spectrometer, tensile machine and differential scanning calorimetry, respectively.
Measurement of luminescent properties.
The factors affected the fluorescent agent's fluorescence intensity can be list as follows: (1) the size of conjugated system.
The optical, mechanical and thermal properties of the UV sealant were investigated with ultraviolet-visible spectrometer, tensile machine and differential scanning calorimetry, respectively.
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