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Online since: February 2007
Authors: Hong Jie Wang, Zhi Hao Jin, Peng Zhao Gao
Oxidation Properties of Three Dimensional (3-D) Carbon Fiber
Preform Coated by SiC-SiO2
Pengzhao Gao, Hongjie Wang and Zhihao Jin
State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049,
P.R.
And also the oxidation properties of ceramic coating/ preform have not been studied carefully, which could help to develop more effective oxidation protection for preform.
The oxidation properties experiments.
Oxidation properties of coated perform in isothermal condition.
Oxidation properties of CP in non-isothermal condition.
And also the oxidation properties of ceramic coating/ preform have not been studied carefully, which could help to develop more effective oxidation protection for preform.
The oxidation properties experiments.
Oxidation properties of coated perform in isothermal condition.
Oxidation properties of CP in non-isothermal condition.
Online since: September 2013
Authors: Jian Zhang, Yue Jun Zhu, Bo Jing, Ye Bang Tan
The measurement of rheological properties was carried out with changing sample properties such as shear stress, shear rate and storage time.
This degradation may lead to loss in viscosity and viscoelasticity, which affects the oil recovery factor. [17-19] After highly mechanical shear which simulating the irreversibly degradation encountered in pumps and near the well bore area, ageing effect on rheological behaviour in Bohai oilfield water with semidilute WSHAP was investigated by rheological technologies at reservoir temperature in our research.
The aim of the highly mechanical shearing was to simulate the irreversibly degradation encountered in pumps and near the well bore area.
Results and Discussion The effect of ageing time on the viscoelastic properties.
The rheological properties of the polymer solutions were evaluated by fitting the data to a power law model.
This degradation may lead to loss in viscosity and viscoelasticity, which affects the oil recovery factor. [17-19] After highly mechanical shear which simulating the irreversibly degradation encountered in pumps and near the well bore area, ageing effect on rheological behaviour in Bohai oilfield water with semidilute WSHAP was investigated by rheological technologies at reservoir temperature in our research.
The aim of the highly mechanical shearing was to simulate the irreversibly degradation encountered in pumps and near the well bore area.
Results and Discussion The effect of ageing time on the viscoelastic properties.
The rheological properties of the polymer solutions were evaluated by fitting the data to a power law model.
Online since: October 2012
Authors: Zhi Hai Tan, Zheng Ping Zhao, Wen Kai Zhai, Qiang Guo
Introduction
Nickel-aluminium bronze was developed in the early 20th century and has been widely used in the industry for its excellent mechanical properties and high corrosion resistance [1].
Nickel-aluminium bronze CuAl10Ni5Fe4 was developed on the basis of aluminium bronze [4] and showed higher strength, wear resistance and excellent anti-friction properties.
However, there are few reports on the tribological properties of CuAl10Ni5Fe4 so far, so it has great significance to study its tribological properties, wear resistant mechanism and the influencing factors.
The M2000A wear tester was used to investigate the tribological properties of CuAl10Ni5Fe4 cubical specimens under the sliding condition.
The content of Cu is low on the worn surface after prior corrosion that maybe one of the factors to reduce the wear resistances.
Nickel-aluminium bronze CuAl10Ni5Fe4 was developed on the basis of aluminium bronze [4] and showed higher strength, wear resistance and excellent anti-friction properties.
However, there are few reports on the tribological properties of CuAl10Ni5Fe4 so far, so it has great significance to study its tribological properties, wear resistant mechanism and the influencing factors.
The M2000A wear tester was used to investigate the tribological properties of CuAl10Ni5Fe4 cubical specimens under the sliding condition.
The content of Cu is low on the worn surface after prior corrosion that maybe one of the factors to reduce the wear resistances.
Online since: July 2021
Authors: Zaid G.A. Al-Jlaihawi, Muhsin Jaber Jweeg
In this work, the mechanical properties of three types of dough rubber NR, NR/BR, and NR/SBR have been investigated using five percentages of materials fill (30, 40, 50, 60, and 70) pphr.
Experimental Work The experimental work included multi-steps in calculating the mechanical properties for rubber materials with various additive effects.
A judgment depending on the discrepancies will indicate the experimental program’s effectiveness for predicting the effect for (pphr) on the mechanical properties for rubber materials.
The cross-links density of NR/SBR dough improves the mechanical properties compared with that of NR and NR/BR blends.
Hammood and Muhannad Al-Waily, Experimental and Theoretical Studies of Mechanical Properties for Reinforcement Fiber Types of Composite Materials, International Journal of Mechanical & Mechatronics Engineering, 12, 4 (2012)
Experimental Work The experimental work included multi-steps in calculating the mechanical properties for rubber materials with various additive effects.
A judgment depending on the discrepancies will indicate the experimental program’s effectiveness for predicting the effect for (pphr) on the mechanical properties for rubber materials.
The cross-links density of NR/SBR dough improves the mechanical properties compared with that of NR and NR/BR blends.
Hammood and Muhannad Al-Waily, Experimental and Theoretical Studies of Mechanical Properties for Reinforcement Fiber Types of Composite Materials, International Journal of Mechanical & Mechatronics Engineering, 12, 4 (2012)
Online since: November 2025
Authors: Kateryna Tishechkina, Tetiana Hannichenko, Olga Salamatina, Dmytro Beliuchenko
Each type of sand is used in a certain area, in which it will be able to show its properties to the maximum: buoyancy, flowability, porosity and moisture capacity.
In the sand dewatering industry, various mechanical methods and means of sand dewatering have become exceptionally widespread, the use of which is simultaneously considered an integral part of the complex solution to the problem of preventing materials from freezing and preserving their free-flowing properties.
[9] Sand: Sources, Classification, Properties, Tests and Substitutes | Construction.
Kozlovskaya, A study of significant factors affecting the quality of water in the Oskil River (Ukraine).
Mechanical Engineering and Renewable Energy. 58 (2021) 93–100
In the sand dewatering industry, various mechanical methods and means of sand dewatering have become exceptionally widespread, the use of which is simultaneously considered an integral part of the complex solution to the problem of preventing materials from freezing and preserving their free-flowing properties.
[9] Sand: Sources, Classification, Properties, Tests and Substitutes | Construction.
Kozlovskaya, A study of significant factors affecting the quality of water in the Oskil River (Ukraine).
Mechanical Engineering and Renewable Energy. 58 (2021) 93–100
Online since: April 2015
Authors: Tomáš Melichar, Jiří Bydžovský, Miroslav Vacula
Within the research the influence of partial substitution of wood with glass fibres on board properties was monitored.
It is used mainly due to economic reasons, because it is cheaper than cement, it shows hydraulic properties and thus supports the board strength.
This phenomenon can be explained by several factors.
The different properties of glass fibres and wooden chips can be considered as the main reason.
This paper was also elaborated with the financial support from the budget under the project FAST-S-14-2318 „Study of the microstructure and physical-mechanical properties of cement composites with organic filler”.
It is used mainly due to economic reasons, because it is cheaper than cement, it shows hydraulic properties and thus supports the board strength.
This phenomenon can be explained by several factors.
The different properties of glass fibres and wooden chips can be considered as the main reason.
This paper was also elaborated with the financial support from the budget under the project FAST-S-14-2318 „Study of the microstructure and physical-mechanical properties of cement composites with organic filler”.
Online since: October 2006
Authors: Simo Pekka Hannula, Outi Söderberg, V.K. Lindroos, Timo Jämsä
So far, the biomedical properties of the MSM
alloys are less studied.
There are still some problems associated with the NiTi SMAs such as corrosion and fatigue resistance, as well as their high elastic modulus and mechanical properties compared with human bone tissues [21].
Superelastic Ti-Ni alloy exhibits ideal mechanical properties for the orthodontic mechanotherapy [1,4].
In addition to the cycling loading and deformation, several other factors should be taken into account.
The history, properties and characteristics of the archwires are reviewed in [59].
There are still some problems associated with the NiTi SMAs such as corrosion and fatigue resistance, as well as their high elastic modulus and mechanical properties compared with human bone tissues [21].
Superelastic Ti-Ni alloy exhibits ideal mechanical properties for the orthodontic mechanotherapy [1,4].
In addition to the cycling loading and deformation, several other factors should be taken into account.
The history, properties and characteristics of the archwires are reviewed in [59].
Online since: August 2004
Authors: Yong Rae Roh, Young Shin Kim
In a micro-machined ultrasonic array transducer, cross talk between array elements is one
of the most important factors affecting the performance of the transducer, and there is strong need to
identify the sources of the problem and to find the means to reduce the cross talk level.
Considering that cross coupling between elements is one of the most important factors affecting the performance of an array transducer [2], there is a strong need to develop a multi-dimensional analysis technique to identify the sources of the problem and the means to reduce its effect.
The results in Fig. 7 say that the damping properties of the filler do not help in reducing the cross talk.
The basic wall model has the same material properties as the acoustic lens, and has the damping ratio of 0.1.
Increasing the damping properties was not beneficial overall for both cases in reducing the cross talk.
Considering that cross coupling between elements is one of the most important factors affecting the performance of an array transducer [2], there is a strong need to develop a multi-dimensional analysis technique to identify the sources of the problem and the means to reduce its effect.
The results in Fig. 7 say that the damping properties of the filler do not help in reducing the cross talk.
The basic wall model has the same material properties as the acoustic lens, and has the damping ratio of 0.1.
Increasing the damping properties was not beneficial overall for both cases in reducing the cross talk.
Online since: April 2019
Authors: Inga Dabolina, Liene Siliņa, Eva Lapkovska
No less important factor is the feeling of comfort, for example, by evaluating the fabric properties by hand touch and body feelings while trying on for mechanical effects (size unconformity, irritations), warm/cool feelings, and comfort during everyday movements.
Manufacturers and retailers should take these factors into account because ultimately consumer becomes the final judge of whether the product has the desired quality and if quality characteristics are defined as product characteristics related to requirements [1,2].
Drapability covers a variety of fabric factors: stiffness, flexural rigidity, weight, thickness etc., which in turn depend on the geometric parameters of the fabric, finishing agents, yarn, yarn interaction, a method of construction etc. [5].
Designers, developers and manufacturers are challenged to make various decisions about the preparation of wear test plans, such as the purpose of the wear test, the properties to be evaluated, the performance of the evaluation, the number of included samples and time period of testing trials [1,7].
Appearance evaluation of ready-made garments is done visually by photography under set conditions so that the assessment is not affected by the environment – lights, shadows etc.
Manufacturers and retailers should take these factors into account because ultimately consumer becomes the final judge of whether the product has the desired quality and if quality characteristics are defined as product characteristics related to requirements [1,2].
Drapability covers a variety of fabric factors: stiffness, flexural rigidity, weight, thickness etc., which in turn depend on the geometric parameters of the fabric, finishing agents, yarn, yarn interaction, a method of construction etc. [5].
Designers, developers and manufacturers are challenged to make various decisions about the preparation of wear test plans, such as the purpose of the wear test, the properties to be evaluated, the performance of the evaluation, the number of included samples and time period of testing trials [1,7].
Appearance evaluation of ready-made garments is done visually by photography under set conditions so that the assessment is not affected by the environment – lights, shadows etc.
Online since: September 2020
Authors: Ahmad Syahmi Zamzuri, Nur Idayu Ayob, Nur Ubaidah Saidin, Cik Rohaida Che Hak, Yusof Abdullah
Graphene is presented to be the prominent candidate to be used as channel material in FET which widely known as Graphene Field Effect Transistor (GFET), due to the remarkable electrical, physical and mechanical properties of graphene [4-7].
Damage in materials is caused by the interaction of the energy with the nuclei and orbiting electrons, thus should also expect changes that will occur in physical, mechanical and electrical properties of materials [13].
In the previous work, the electrical properties of irradiated graphene was discussed only at voltage of 1.0 V and 2.0 V.
This situations happens due to the high dose of the irradiation that alter the uniformity of the electrical properties.
Balandin, Modification of Graphene Properties due to Electron-Beam Irradiation, Applied Physics Letters 94 (2008), 013101
Damage in materials is caused by the interaction of the energy with the nuclei and orbiting electrons, thus should also expect changes that will occur in physical, mechanical and electrical properties of materials [13].
In the previous work, the electrical properties of irradiated graphene was discussed only at voltage of 1.0 V and 2.0 V.
This situations happens due to the high dose of the irradiation that alter the uniformity of the electrical properties.
Balandin, Modification of Graphene Properties due to Electron-Beam Irradiation, Applied Physics Letters 94 (2008), 013101