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To achieve the atomic-level surface，slicing depth of the abrasive into the surface of the workpiece must be reduced under plastic removal mode, which requires submicron and even nanometer abrasives and magnetic particles to be utilized in Magnetorheological finishing (MRF), so that Magnetorheological effect weakens with reduction of particles diameter, which results in polishing efficiency decreasing[13,14] To meet the hard and brittle material such as SiC wafers atomic scale ultra-smooth surface planarization efficient processing requirements, a new method known as the cluster MR-chemical mechanical polishing (MRCMP) has been proposed that combines superior properties of low damage and small surface roughness of chemical mechanical polishing (CMP) and flexibility ,controllability of cluster magneto-rheological finishing (MRF) to obtain stably and high-efficiently the atomic-scale ultra-smooth planarization surface polishing.
Under the same conditions, the change of the rotational velocity of the polishing platen will affect the material removal rate.
Machining gap directly determines the magnetic field intensity and the polishing pressure of the workpiece surface, thus affects the polishing efficiency.
The composition of polishing liquid is an important factor affects the processing effect, since the surface of Si is a layer of Si dangling bonds, which react to form water-soluble salts with the alkali in the polishing solution.
Gutmann, Chemical mechanical planarization of microelectronic materials.

However, the interface joint of double-face locked toolholder-spindle system is affected by many factors (broach force, toolholder structure, geometric tolerance, roughness).
Since we care about the overall properties of BTF toolholder-spindle assembly, rather than the respective properties of each connect surface, and the taper joint is the main load bearing and location joint of BTF toolholder-spindle, we can take the multiple connect surfaces as a whole joint, and simplify the taper sleeve and body as one, not affecting the overall properties of the BTF toolholder-spindle assembly, as shown in Fig. 2(b).
l Material——Define the material properties of the BTF toolholder and spindle.
Fig. 3 BTF Toolholder main menu GUI for Defining the Material Properties.
The broach force, as one of the major factors affecting the contact properties of BTF toolholder-spindle, is the main load of the model, which acts on the thread hole of BTF toolholder end.

At present it is diffcult to set up the dynamic model because of the complicated structure and so many factors affecting the dynamic performance [3,4,5,6].A method of setting up dynamic model and carrying out dynamic simulation to determine the dynamic response is proposed.
Material properties are listed in Table 2.
Table 2 Material properties Part or assembly Material Density(kg/m3) Young's modulus(Pa) Poisson's ratio Globidal cam 20CrMnTi 7.86´103 2.12´1011 0.298 Turret 45 7.89´103 2.09´1011 0.269 Roller GCr15 7.90´103 1.99´1011 0.27 Meshing.
(In Chinese) [2] G.F.Zhang,S.P.Yang,H.Z.Chen: Journal of Mechanical transmission,Vol. 27 (2002) No.3, p.1.
(In Chinese) [7] D.X.Cheng: Mechanical design manual (Chemical Industry Press,P.R.C 2008),p.4-122.

In this paper, the influence factors, such as sputtering power, sputtering oxygen argon ratio and sputtering temperature, are introduced.
It will determine the micro structure of the film, so it has some control on the electrical properties and optical properties of the film, affecting the practical application.
Ion beam sputtering ZnO films along the c axis orientation from the substrate temperature, oxygen partial pressure and sputtering factors.
Optical properties.
Electrical Properties.

Mechanical properties of sheet metals are the most important factors that affect sheet metal formability.
Chemical composition of the material, production methods and various treatments applied to the material during production are among the main factors that create differences in mechanical properties of sheet metals.
Basic mechanical properties of a material are determined by tensile tests.
In addition, mechanical properties of the materials were determined with tensile test.
It can be expected that all of the mechanical properties are close to the each other.

Sample in different temperatures with annealing processing, annealing time is 60min, Observe the change of the alloy microstructure and properties .
Therefore, to improve the uniformity of the magnesium alloy composition and its mechanical properties, the magnesium alloy sheet need annealing treatment.
Annealing treatment can ensure magnesium alloy get enough deformation ability and has the important influence for mechanical properties and organization structure, and annealing temperature is an important factor in the effect of annealing [13].
[9]JANECEK M,POPOV M,KRIEGER M G,HELLMINGAND R J,ESTRIN Y.Mechanical properties and microstructure of a Mg alloy AZ31 prepared by equal-channel angular pressing[J].
The structure and properties of non-ferrous alloys [M].

There are many factors influencing the cutting temperature, such as the properties of workpiece materials, geometric parameters of the tool, the use of cutting fluid and so on.
Introduction Titanium alloy material has excellent mechanical properties, low density and good corrosion resistance, it is the main consumption material of aerospace industry.
In order to reduce the number of experiments, based on the determination of the factors and levels of the experiment, this paper selects four factors and three levels orthogonal table L9(34) for orthogonal test design.
The chemical composition and mechanical properties of TC18 titanium alloy are shown in table 3 and table 4 respectively.
Materials & Design, 2014,63:798-804 [16] Sun SY, Lv WJ (2016) Microstructure and Mechanical Properties of TC18 Titanium Alloy.

The ridge is the watershed of groundwater recharge area, which accepts atmospheric precipitation infiltration recharge in the rainy season, and along the pore of slope, the water is excreted to the lower reaches of low-lying. 2.5 Rock and soil engineering mechanics type and main physical and mechanical indexes The rock and soil physical and mechanical properties are shown in Table.1.
Engineering site earthquake hazard is mainly affected by peripheral earthquake affected.
Rainfall is the main inducing factors to the occurrence of landslide.
The formation and development of landslide is the result of superposition of all kinds of natural factors.
Conclusions The principle of prevention is to decrease the force, improve the sliding resistance of landslide and eliminate or reduce the landslide inducing factors.

The v-K curves showed that the SCG susceptibility significantly affects the crack growth velocity of the different bioceramics.
The subcritical crack growth phenomenon is one of the paramount factors that determine the lifetime of ceramic dental restorations due to the humid oral environment.
Table 1 – Mechanical properties (KIc and Si – inert strength), SCG parameters (n, sf0, A and B) and stress intensity shape factor (Y) of tested dental ceramics.
This result also showed that the mechanical properties related to rapid fracture (KIc and inert strength) have limited effects on the SCG susceptibility, since Empress 2 presented relative high KIc and Si values (Table 1).
Therefore, for the development of new bioceramics for dental restorations, not only mechanical properties must be improved, but also they must have resistance against the strength degradation by SCG phenomenon.

Ibrahim, Isochronal recovery behaviour on electromagnetic properties of polycrystalline nickel zinc ferrite (Ni0.5Zn0.5Fe2O4)prepared via mechanical alloying, Sci.
Khitouni, The magnetic and structural properties of nanostructured (Fe75Al25)100-xBx alloys prepared by mechanical alloying, J.
Microstructure and magnetic properties of nanostructured (Fe0.8Al0.2)100-xSix alloy produced by mechanical alloying, J.
Ahmadian Baghbaderani, The effect of Si addition on the microstructure and magnetic properties of Permalloy prepared by mechanical alloying method, J.
Moradi, Effect of Cu-Substitution on the Microstructure and Magnetic Properties of Fe-15%Ni alloy Prepared by Mechanical Alloying, J.