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Introduction Titanium carbide (TiC) is a material with a number of unique properties: high melting point (about 3000 degrees), high hardness (9-9.5 on the Mohs scale), low electrical resistance, high thermal conductivity, chemical inertness, resistance to aggressive media and abrasive wear, bio- and hemocompatibility of the material [1-3].
This method significantly surpasses traditional approaches in terms of the resulting coating quality, an absence of the need for lengthy preparatory work and a large number of technological operations.
As seen from Fig. 6 and Fig. 7, the surface structure may differ in the grain size of the coating.

Commercially available polishing pads with grits number atop #4000 are very rare as the finer the grits the harder to spread them evenly on pad surface.
Kim [2] tackled the problem of high production costs of CMP pad with hydrophilic polymer grains.
The Taguchi method is not only able to get the desired results with least cost and number of experiment runs but also able to find out relative importance among all the factors.

Further aging resulted in coarsening of the grain structure in the solder matrix.
Due to the Journal Title and Volume Number (to be inserted by the publisher) Solder (Cu,Ni)6Sn5 Ni-P deposit Cu (a) (b) (c) P-rich Ni layer Solder (Cu,Ni)6Sn5 Ni-P deposit Cu (a) (b) (c) P-rich Ni layer Fig. 1 SEM micrographs of the interface between Sn-Ag-Cu solder and electroless Ni-P/Cu substrate; (a) as-reflowed, (b) after aging at 150 � for 30days and (c) 100days.
Vol. 31 (2002), p. 584 Journal Title and Volume Number (to be inserted by the publisher) [7] J.W.

Problem statement There are quantitative differences in the experimental data presented by a number of authors [2, 4, 6, 8, 11, 15, 19] as to the effect of elevated temperatures on the characteristics of the mechanical properties of heavy concrete.
The results of the research during short-term heating up to +200°C show quite a significant difference in determining concrete strength characteristics by a number of authors.
Physical-mechanical properties of the modified fine-grained concrete subjected to thermal effects up to 200°С (2014) Applied Mechanics and Materials, 633-634, pp. 1013-1017

.), and biomass particle (such as spore, pollen, grain and phytoclasts); in artificial sources, there are mainly such black carbon particles as exhaust gas from the burning of fossil oil and smog from the burning of biomass.
Usually, primary aerosol particle has a large particle size and high mass concentration, but its number concentration is low, so it can only make little contribution to haze, and it’s mainly is under the control of emission intensity.
According to data, the number of the outpatients with respiratory disease was increased by about 20% in Beijing’s major hospitals; coincidentally, that was increased by 30% in Shanghai’s hospitals, and most of the patients suffered from chronic obstructive pulmonary disease and asthma.

E aN an p 2 2 δ σ −= (1) where σp is compressive stress, n the number of unit cell layer which perform surface bond contraction (n<=3), N the total number of unit cell layers along the radius direction of a spherical grain, a the lattice constant, δa/a (10% in present study) the ratio of surface bond contraction, and E the Young's module (the values reported by Yan et al [14]).

Table 1 The physical indexes of pumice aggregate Grain size（mm） Bulk density (kg/m3) Apparent density (kg/m3) Density (g/cm3) Voidage （%） Porosity (%) Cylinder pressure strength(MPa) 5-15 342 660 2.5 44.8 73.6 0.8 2.2 Sample preparation Mixed by hand, the cement mixed with the absorbent, then added into concrete.
Tab 2 Concrete mix and test results number Concrete mix 28d compression strength（MPa） Apparent density（kg/m3） cement water sand pumice Crashed stone CB EP Water reducing agent 42# 468 220 616 1096- - -- - 34.6 2460 43# 380 162 609 374 -- - -- 3.8 16.2 1470 44# 380 162 609 374 -- 3.8 -- 3.8 15.6 1460 47# 380 162 609 382 -- -- -- 3.8 6.1 1500 2.3 Performence test The reflectance value R was taken as the evaluation indexes of the absorbing properties of the material[16], namely, R=, where Er and Ei mean the electric field strength of the reflection wave and incident wave, respectively.
The incorporation of pumice introduced a large number of bubbles in concrete, which reduced the effective permittivity of concrete materials, so as to improve the resistance matching performance between material and free space, and achieve the purpose of the electromagnetic wave absorption.

The test solution of the filter paper immerse was posted at room temperature for 10 min, then check the blue brown spots number of the filter per unit area.
H=n/s Where H-coating porosity, n-the pore spots number, s-measured coating area, cm2 Results and discussions The influence of the amount of PTFE oh the coating porosity Fig. 1 The deposits porosity with different adding amount of PTFE Whole (n/cm2) Figure 1 shows the porosity changes with different PTFE content in composite coating process.
At the same time, the coating surface grind grain amount decrease, and the surface become smooth.

High-density nanostructured CuO samples were prepared from coarse-grain powder of CuO by two methods: shock wave loading (SWL) – (S1) and (S2) samples and high pressure torsion (HPT) – (S3) and (S4) samples [12].
Here, the optical functions spectra also shown for the nanostructured CuO sample (S1) prepared by SWL method (figures above the curves indicate the number of samples).
Spectra of the (a) real e1(E) and (b) imaginary e2(E) parts of e(E) for nanostructured CuO samples; the inset shows the absorption coefficient K; number 2, 3, and 4 correspond to samples (S2), (S3), and (S4).

Table 1 Two kinds of insert types Insert number Insert type and grade For short 1 SNMG120408-MF1 CP200 CP200 2 SNMG120408-NM YBG102 YBG102 Fixed feed rate f=0.1mm/r; cutting speed v=80m/min, 100m/min, 130m/min, 170m/min, 210m/min; at each cutting speed, select cutting depth of 0.1mm, 0.2mm, 0.3mm for turning high temperature alloy GH2132 cutting temperature and tool wear test.
Fig. 5 and Fig. 6 show respectively the two inserts wear SEM when cutting speed is 170m/min cutting depth is 0.1mm.As the iron-based superalloy is very sticky, in the cutting process, the tool rake face and flank bonded a large number of GH2132 adhesive material Fig. 1 Cutting temperature curve when ap=0.1mm Fig. 2 Cutting temperature curve when ap=0.2mm Fig. 3 Cutting temperature curve when ap=0.3mm Fig. 4 Two inserts wear cure (a) ×200 (b) ×500 (a) ×100 (b) ×2000 Fig. 5 CP200 wear SEM Fig. 6 YBG102 wear SEM (see Fig. 5(a), Fig. 6(a)) .with the constant relative motion of chip, workpiece material and the cutting tool, some of the grain of cutting tool materials will be bonded to the chip and workpiece material, and be taken away leading to rake face and flank severe adhesive wear.