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Effecting Factors Study for Powder Flow Characteristics Ziming Kou1, a , Rui Li2, b 1 College of Mechanical Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, Shanxi, China 2 College of Mechanical Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, Shanxi, China a zmkou@163.com, bm.m.e.rli@126.com Keywords: Powder; Flow Rate; Effecting Factors; Hopper Abstract.
To understand the influence of external factors on powder flow process from the hopper, and to get the prerequisite to control the flow rate, by doing a lot of experiments.
In this paper, the size distribution regulation was acquired by SCIROCCO 2000 (dry method) laser granulometry, and then the affection on flow rate from many external factors were separate considerations.
Not only many factors can affect the flow from the hopper, but also dynamic and automatic measurement was very difficult.
Silo Discharge Simulations With Different Particulate Properties Using the Distinct Element Method: TRANSACTIONS OF THE CHINESE SOCIETY OF AGRICULTURAL ENGINEERING, 1999, 15(3): 65~69

Mechanical and Friction-Wear Properties of MoS2 Al-matrix Self-lubricating Xiaoqian Qi1,a, Xuping Zhang2,b 1,2College of Material Science and Engineering，China University of Mining and Technology, China aqixiaoqian1987@126.com , bxpzhang@cumt.edu.cn Keywords：Al-matrix self-lubricating materials, MoS2, friction coefficient, wear rate, mechanical properties Abstract.
Addition of MoS2 can reduce friction coefficient, Fe is used to improve the mechanical properties.
Si is an important affecting factor for hardness.This is due to a new solid phases-Al3.21Si0.47.
Si is an important affecting factor for hardness.
Optimization of mechanical and chemical properties of sulphuric anodized aluminium using statistical experimental methods[J].

arolando@cicy.mx, brlaviada@cicy.mx, ceperez@itescam.edu.mx Keywords: Textile architecture; geotubes; mechanical properties; polymers.
There are many environmental factors, which influence aging mechanisms of geotextiles such as UV radiation, temperature, humidity, etc.
Mechanical properties: Figure 6 presents stress-strain curves of the three textiles tested in tensile mode.
All the textiles studied in this work achieved excellent mechanical properties at 90o (transverse).
The effect of artificial environmental photodegradation and humidity affected significantly the mechanical behavior of textiles by gradually diminishing its properties.

Fiber surface treatment plays an important role in the mechanical properties of CFRC and the optimum way is HNO3 treatment.
Previously, many ways have been tried to improve both the electrical and mechanical properties of CFRC.
Results and discussion Factors affecting resistivity, compressive strength, and flexural strength are water-to-cement ratio, silica fume content, and fiber surface treatment, respectively.
The difference value analysis of orthogonal experiment results show that water-to-cement ratio is the most important factor among the three factors in affecting the resistivity of CFRC.
Fiber surface treatment plays an important role in the mechanical properties of CFRC.

One of the factors affecting properties of lightweight concrete (LWC) is the physical and mechanical properties of aggregates used [1].
Specific gravity factor, bulk density, and gradation are among several other properties that can alter expected performance.
In addition, several mechanical and physical properties of the LWA sources were evaluated and summarized in Table 2.
At this stage all mixes achieved the required mechanical properties for structural lightweight concrete.
It was found that exposure to the wet/dry cycles slightly affected the mechanical properties of the mix and the RCPT values.

The paper presents a numerical and experimental approach for the quantification of the thermo-mechanical properties in multi-pass weld’s heat affected zone (HAZ) of low alloy steel “S355J2+N”.
This affects in a complex way the microstructure transformations and thereby the local thermo-mechanical properties.
The aim of the presented work is the experimental determination of the thermo-mechanical material properties during multi weld thermal exposure.
Furthermore, the work identifies the relevant influence factors on the microstructure transformations and thermo-mechanical properties of the HAZ of multi-pass welded joints.
Summary This paper presents some results of an investigation of the thermo-mechanical properties of the HAZ which experienced multi-pass welds.

Many studies show that the type and properties of aggregates for concrete mechanical properties of high-temperature research has important significance.
And because the factors that affect the mechanical properties of concrete at high temperatures many, therefore, to understand the high temperature properties of concrete needed to carry out further experimental study.
Taken together these problems still exist for the study of high-temperature mechanical properties of concrete: (1) Affect mechanical properties of concrete by many factors, such as mixing ratio, the level of construction, maintenance conditions, loading methods, even the same batch have considerable differences between the mechanical properties of concrete will be to carry out changes in the mechanical properties after high temperature research needs large quantities of experimental data statistics.
The study considers aggregate internal defects for high temperature mechanical properties of concrete fewer.
The coarse aggregate ofconcrete [J]., affect the heat burst properties of high strength concrete in 2011 April.

The Factors Affecting Colloidal Processing of 8YSCZ Ceramics Süleyman Tekeli1 and Metin Gürü 2 1 Materials Division, Metallurgy Education Department, Faculty of Technical Education Faculty, Gazi University, 06500, Besevler-Ankara/TURKEY 2 Chemical Engineering Department, Engineering and Architectural Faculty, Gazi University, 06570, Maltepe-Ankara/TURKEY Keywords: Colloidal processing, Zirconia Ceramics, Agglomeration, Sintering Abstract.
To achieve improvements in the mechanical properties, fine grain size, homogeneous microstructure and high density are desirable.
The poor dispersion of the powders produce difficulties in the densification and the presence of agglomerates is responsible for poor mechanical properties.
Particle size and particle size distribution are also relevant factors that determine the reological properties of the suspensions and the packing ability of the powders.
There are many factors affecting the casting characteristic of the slurry system and relative densities, namely solid content, slurry viscosity, dispersing agent concentration and milling time.

Valence electron structures analysis on relationship of Cu physical or mechanical properties and vacancy Yun Fei Wang 1, a, Yun Kai Li 1,b and Ming Xia 2,c 1School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China 2China Automobile Industry Enginnering Corportion, Luoyang, 471003, China awa1yun2fei3@163.com, bliyunkai@bit.edu.cn，c14652569@qq.com Keywords: mechanical properties; EET; valence electron structures; signal vacancy Abstract.
For the purpose of studying vacancy effect on physics and mechanics property, authors advance a method of calculating mono-vacancy cell valence construction, and get 5 phase construction factors nA, , , F and α on electron layer.
However, affect about defects on the relationship between physical and mechanical properties and valence electron structure has not been reported.
Contrasting valence electron structure of no vacancy Cu crystal cell and single vacancy Cu crystal cell, analyzing relationship of resistance and electron density , relationship of strength and the strongest bond covalent electronic pairs number , relationship of stability and configuration number as well as assembly key ability F, and relationship of plasticity and homogeneous deformation factor α, try to use EET to explain influence of vacancy defects on the material physical properties and mechanical properties.
The current reduction, manifest as resistance increased on the physical properties.

The variations and developments with the reasons on the mechanical properties of MgO-MgAl2O4 and MgO-ZnO-Al2O3 composite refractories were examined and thermal parameters affecting the durability of composites at high temperatures were investigated.
The relationships between mechanical properties and structural variations for different compositions and the factors affecting this connection were investigated.
With the additions of various amounts of ZnO-Al2O3 to MgO, significant improvements were achieved on both mechanical properties and R-Rst parameters of in-situ formed M-S-ZnAl2O4 composite refractories, compared to MgO-MgAl2O4 materials containing preformed spinel, by factors of up to 3.6 and 2.0, respectively.
In this study, the relationships between the mechanisms causing improvement on the mechanical properties of composite refractories and microstructural changes and parameters affecting these were investigated in detail and explained with the reasons.
These identified microstructural factors are associated with the improvement occurring in the mechanical properties of ZnO-Al2O3 added composite refractories.