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Materials and Testing program Materials Cement is P·Ⅱ52.5 Portland Cement, the basic properties are listed in Table 1.
The chemical analysis and physical properties of the above-mentioned materials are listed in Table 2.
(2) Mechanical property and workability of concrete are tested in accordance with GB/T 50081-2002 methods
In concrete, the exit organic carbons will absorb concrete admixtures and water, affecting the performance of concrete[4].
By integrating work performance and mechanical properties of ultra high strength concrete, the optimal dosage of RHA is 10%.

A typical processing route includes the PVD deposition of a barrier layer and copper seed layer, followed by copper electroplate (EP), anneal, and chemical-mechanical planarization (CMP).
All the processing steps affect the texture of annealed copper, and therefore affect directly the performance of interconnects.
Texture in copper interconnects has been recognized as an important factor affecting the electromigration resistance [1-4], stress-migration [5-7], and electrical resistance [8].
The selection of the materials for the barrier layer affects the texture of the copper seed as well.
Statistically vast experimental data allows one to construct phenomenological relationships between texture and other physical properties of metallic films that are technologically important.

Introduction In general, fine-grained steels are expected to have higher mechanical properties than conventional steels according to Hall-Petch relation.
Accordingly, mechanical properties of NFG600 were different from SM490 as expected by Hall-Petch relation.
Mechanical properties obtained by tensile test and micro Vickers hardness test are summarized in table 2.
Mechanical properties by tensile and hardness test.
Therefore, it would be difficult to distinguish the effect of grain size from the effect of mechanical properties such as hardness for the fundamental of occurrence of σ33.

Firstly, based on researched mechanical properties of discontinuity, the laws how asperity inclination angles and asperity heights of discontinuity and the mechanical behavior of discontinuity are studied.
The roughness degree is a key factor to affect shear behaviour of discontinuity.
Research on deformation and strength properties of discontinuity has important significant in specific project.
In order to analyze mechanical properties and deformation under condition of different zig-zag shape of discontinuity, the discontinuities with asperity height being 10cm and asperity inclination angle being 10°, 20°, 30° and 45° separately are constituted.
R., Investigation of some rock joint properties: roughness angle determination and joint closure[C].

Parameters of Laser Welding and Their Influence of Weld Seam BALOG Peter1, a, BREZINOVÁ Janette1, b * and PASTOREK Peter2, c 1Technical University of Košice, Faculty of Mechanical Engineering, Košice, Slovakia 2Univerzity of Žilina, Faculty of Mechanical Engineering, Žilina, Slovakia apeter.balog@tuke.sk, bjanette.brezinova@tuke.sk, cpeter.pastorek@fstroj.uniza.sk Keywords: laser, welding, penetration, power, impurities.
The next important factor is focus position against a surface [1,2,3].
The quality of laser welding joints is affected by a number of factors, but primarily can be designated welding power, laser beam diameter, beam focus position, roughness and cleanliness of welded materials, the design of the weld joint, as well as used shielding gases and welding speed.
Sharef, Effect of Laser Beam Welding Parameters on Microstructure and Properties of Duplex Stainless Steel, Mater.

The standardization processes of these research factors are developed and the typified examples are ISO2631 and BS6841 [1,2].
These systems are composed of springs and dampers with fixed properties.
By adopting the formulation of the control system, both road holding capability and comfort are affected.
References [1] Mechanical vibration and shock – Evaluation of human exposure to whole-body vibration, Part 1:General requirements, ISO 2631-1, 2nd ed.
[2] British Standard Guide to measurement and evaluation of human exposure to whole body mechanical vibration and repeated shock, BS 6841.

Mechanical properties of friction pairs (made by 45# steel) see Tab 1.
After the test, surface profile, SEM and XPS of wear scar are researched, respectively. ２ １ Location of mear lubricants Fig 1 Fretting wear equipment Fig 3 Fretting wear volume of urea grease Fig 6 Fretting wear volume of schematic diagram containing nanoparticles containing some additives Tab 1 Mechanical properties of friction pairs Tab 2 Bond energy of some chemical bonds[4] chemical bonds bonds energy (KJ/mol) Cu-S 276 Zn-S 205±13 Ni-S 344.3 Fe-S 322 E(GMPa) Rs(MPa) Rb(MPa) HRC ball 210 1600 800 61～63 plane 74 600 800 29～33 3.
This is indicate that during fretting wear test chemical reaction types and degree are different on friction surfaces, so the formed chemical reaction films on friction surfaces are different, this affect the size of friction coefficient and wear volume.
The property of reducing friction and wear, Oiliness additive stearic acid is better than that of stearyl alcohol.
Because of weak acidity, stearyl alcohol is uneasy to ionize, its property of reducing friction and wear is less relatively. 4.

Microstructures, Properties and Fracture Behavior of Solidified TiC-TiB2 Composites with increasing content of TiB2 Xuegang Huanga, Long Zhang, Zhongmin Zhaob and Chuanzeng Pan Mechanical Engineering College, Shijiazhuang 050003, China aemei127@126.com, bzhaozm2007@yahoo.cn Keywords: TiC-TiB2 composite; rapid solidification; fine-grained microstructure; fracture behavior Abstract.
Introduction TiC-TiB2 composites are considered potential candidates for engineering applications under extreme conditions due to their excellent combination of mechanical and electrical properties as well as their good corrosion and oxidation resistance at high temperatures [1].
Because combustion characteristic in high-gravity field similar to thermal explosive not only makes the gas escape rapidly, but also forms the thermal vacuum around the liquid products, the key factor affecting the densification of the ceramic is considered the shrinkage cavities due to rapid solidification of TiC and TiB2 crystal.
Adrian, TiC-TiB2 composites: a review of phase relationships, processing and properties, J.
Song, Microstructures and properties of large bulk solidified TiC-TiB2 composites prepared by combustion synthesis under high gravity, Scripta Mater. 61 (2009) 281-284

In this study three variables, i.e. the space between channel and internal wall of the insert, channel diameter and fluid temperature, have been tested with design of experiments (DoE) to study the significance of the factors and interactions between them on cutting temperature.
A 3-D finite element (FE) model has been developed to observe the effects of these factors on heat transfer rate.
The simulation results show the most dominant factor to affect the cutting temperature is the temperature of the cooling fluid followed by the space between channel and tool insert internal wall.
(5) The thermo-physical properties of the tool are constant through-out the machining process
International Journal of Mechanical Sciences, 43(1), 2001, pp. 57-88

The raw material used as the metal powder, the selection of the binders, particle size and shape of the metal powder, the novel formulation and the mixing method are the factors that determine the success of the MIM process [5].
The powder loading of the feedstock is the most critical factor that determines the novel formulation which might affect the metal injection moulding processes [7].
Feedstocks with different binder formulations were established and their mixing properties, flow behaviour and microstructures at three different temperatures were examined.
The quantity of palm stearin proven to be greatly affected by the feedstocks viscosity and provides varying degree of viscosity at the different temperature.
Fig.5: SEM Micrograph of feedstock (a) 60 % PS 40 % PE and (b) 70 % PS 30 % PE Summary The content of the palm stearin has a great effect on the rheological properties of copper feerdstocks.