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Finally ,Diamond abrasive which is considered was the most suitable for chemical mechanical polishing(CMP) abrasive of SiC Crystal Substrate.
Based on the problem in the free abrasive chemical mechanical polishing, based on the consolidation of chemical mechanical polishing abrasive for 6H-SiC single chip for processing.
It is very important to choose suitable abrasive material in CMP because the property of abrasive materials can directly affect the efficiency of polishing.
In addition, thinking of other influence factors of CMP, suitable removal rate is obviously helpful to judge the influences from other experiments. 2.2 Contrast tests between fixed abrasive CMP and free abrasive CMP 1) Analysis of results of free abrasive CMP The single factor experiments were done by changing the diameter of abrasives.
Study on Fixed-abrasive Chemical-mechanical Polishing Technology of Wafer in Integrate Circuit Manufacturing[J].

In fluid drive system, instability will happen in the influence of load when fluid drive clinder runs in low velocity, which will affect the system’s stability and reliability.
Simulation model of hydraulic clinder performance Fig8. curve of hydraulic clinder As shown in Fig.8, we can easily figure out the factors such as friction, Viscous damping coefficient, compressibility coefficient, leakage coefficient ,which can effect features of curve of hydraulic clinders.
In order to verify the mechanism of vibration caused by the coupling force, and investigate the law of influence on low speed characteristics of hydraulic cylinder affected by different essential factors, a variety of dynamic testing for hydraulic cylinders have been conducted including displacement, velocity, acceleration tests based on Hydraulic Test Stand shown as fig.9.
Results and Discussion From the perspective of nonlinear dynamicsandnonlinear dynamic test, the reasons why hydraulic clinder creeps in low velocity are verified that is the combined result caused by many factors in specific working state such as jump phenomenon, self - excited vibration, etc.
China's mechanical engineering ,19(24):2930-2933.Vol.19(2008),p.2930

The numerical factors are calculated from single crystal elastic constants.
Other materials properties can affect the sound velocity.
Usually, for a specific metallic alloy, texture is the main factor affecting velocity.
The numerical factors are calculated from single crystal elastic third order elastic constants in the case of isotropic texture symmetry.
On-line Nondestructive Mechanical Properties Measurements Using Laser-Ultrasound - Final Report American Iron and Steel Institute, 2001 (unpublished)

Design and Application of High-Speed Variable Pitch End Mill based on Milling Stability SONG Qinghuaa, AI Xingb Key Laboratory of High Efficiency and Clean Mechanical Manufacture, School of Mechanical Engineering, Shandong University, Ji’nan 250061 P.R.
Tooth Engagement Factor and Milling Stability for End Mills Tooth Engagement factor.
Table 2 Modal parameters of end mill systems Mass M (kg) Damping C (Ns/m) Stiffness K (N/m) x 0.0609 0 7.990 0 1.820×106 0 y 0 0.0609 0 7.990 0 1.820×106 Analysis of Tooth Engagement Factors.
The workpiece material is made of aeronautic aluminum alloy with physical properties, Young’s modulus of elasticity E=70.3GPa and density ρ=2820kg/m3, and is clamped on the three-force component Kistler (Model 9275A) dynamometer, which is fixed on the table of the machining center.
In higher rotating speed regions, unbalance of the cutter system makes the spindle system yield an additional radial load, which is proportional to the square of rotating speed and affects the security and surface quality in high-speed milling process.

And further, independent sealing pores, high mechanical strength of pore wall, pore structure approximate to sphere and pore diameter with similar and small size were all favorable factors for higher strength of foam concrete.
Because chemical foaming has huge advantage in strength , water absorption properties and low density, the method of chemical foaming is selected in test andf foaming agent is hydrogen peroxide.
Experimental study on the effect of foaming agent on the mechanical and thermal properties of chemical foaming foam concrete.
Various factors affect the composition of the cell wall and cell type affect the foam concrete strength
Approximates the spherical cell structure and uniform size and smaller pore size are favorable factors of foam concrete strength.

The shear characterization of the prepreg and the investigation of the factors influencing the representative shear stiffness including sample geometry, strain rate, conditioning and temperature are discussed.
Because the forming temperature will affect several properties of the final composite part including shrinkage, thickness variations, warping tendencies, and residual stresses, it is important to characterize the shear behavior as a function of temperature.
Thus, temperature dependence along with other factors that influence the empirical measurements (e.g., strain rate, sample geometry, and conditioning) will also be investigated in the current research.
Factors that influence the shear stiffness were investigated including strain rate, sample geometry, conditioning and temperature.
Therefore, only primary runs of a specimen should be used to evaluate the shear properties of the textile.

Each existing method has its own advantages and disadvantages, which are characterized by specific technical-and-economic factors determining effective areas of its application [1,2].
The total thickness of the heat-affected zone is 4 microns.
The implemented studies on mechanical properties of the system weld deposit/steel showed that the microhardness of the deposited coating remains unchanged throughout the depth up to (3.7...4.0) mm.
Fourthly, a sufficiently large quantity of g-iron, whose presence in the material reduces its strength properties.
Weld deposit and spraying, Mechanical Engineering, Moscow, 1985

In the constructions of multilayer cylindrical shells in heat-and-power engineering the materials, exhibiting rheological properties, such as concrete, polymers or fiber glass are widely used.
In this connection, the study of temperature stresses in polymers, the analysis of the influence of various factors on the processes course under consideration, is of great importance.
Introduction The mechanical properties of polymers depend strictly on temperature [1].
The temperature is most affected by viscoelastic parameters.

Structure controlling of wrought magnesium alloys Alloy phases.The geometry, size, amount and distribution of alloy phases have obvious effects on the plastic forming property of wrought magnesium alloys, which are also important factors to determine alloying structure, mechanical properties and corrosion resistance.
Zhang and co-workers [4] investigated the effect of Rare Earth Ce on grain size and as-cast mechanical properties of AZ31 alloy, the results showed that the grain size decreased with the increase of Ce content, and the mechanical properties were improved evidently when the Ce addition was less than 1%.
The effects of Ce addition on the microstructure and mechanical properties of AZ61 alloys had been investigated by Zhou et a l[5].
Plastic processing technology.In the past years, the investigations on the plastic deformation process have been focused mainly on the optimization of process parameters and effects of technological factors on structures and properties of the AZ31 wrought magnesium alloys.
Song et al [24] investigated the YAG laser welding process of AZ31B alloy, and indicated that the pulse width was the main parameter affecting properties of the joint.

Study of Slurry Erosive Wear Behavior of Titania-30 Wt% Inconel-718 Plasma Sprayed Mild Steel using Taguchi Technique C S Ramesh1, a, R Suresh Kumar2,b*, G Dilip Maruthi2,c, Rashmi R2,d 1Department of Mechanical Engineering, PESIT, Bengaluru, India 2Department of Mechanical Engineering, BMSCE, Bengaluru, India a csr_gce@yahoo.com, b sureshkumar.rupanagudi@gmail.com, c gdm.mech@bmsce.ac.in, d rashmir.mech@bmsce.ac.in * Corresponding Author Keywords: Plasma spray, Slurry erosive wear, Surface coating, Mild steel, Titania, Inconel-718 Abstract: Surface coating is sharing the responsibility between coating and substrate, which enhances the surface properties such as strength, hot hardness and toughness, wear resistance, antifriction and chemical inertness.
Gaurav Gupta et al. [3] revealed that premixing of Al2O3 with glass microspheres improves the coating adhesion strength without significantly affecting the erosion wear performance of the coatings and among all the control factors impact velocity is the most significant factor affecting the wear rate of these coatings.
The Taguchi approach accommodates the effect of several factors on the target value.
A factor is significant if the P static of the factor is less than 0.05.
In this light, the particle size is the most influential factor and significant factor for uncoated and 200 µm coated specimen while speed is the most influential factor and significant factor for 100 µm coated specimen.