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Stewart et al reported that the wear resistance of thermal sprayed WC-Co coating obtained from nanopowders was lower than the expected one because of the decarburization of WC nanopowder originating from much higher surface area to volume ratio than conventional powder.[4] Skandan et al. developed a new class of feedstock powder, e.g. multimodal feedstock powder, containing hard aggregates of coarse- and nano-grained WC-Co particles.[5] The nanocrystalline component in multimodal feedstock powder might melt with relative ease, leading to strong binding and hard coating with the coarse particles being partially melted.
Acknowledgement The authors are grateful for the financial support by a grant (code number 04K1501-01210) from 'Center for Nanostructured Materials Technology' under '21st Century Frontier R&D Programs' of the Ministry of Science and Technology, Korea.

These results showed that a large number of TiN grains in the Si3N4 matrix could be connected to each other and formed a thorough electrical conductive network leading to the increase in electrical conductivity.

On the basis of a large number of experiments, It is found that the growth of the sample film of good growth also have good growth curve of voltage time.
For good performance of oxidation film, in the view of technology it needs to meet the followings: Determine the right solution system, rapidly active solution; Sample as possible to reduce the time in the passivation zone; Ensure that sample matrix react adequately in the micro-arc zone, so as to promote the growth of film close-grained and thin; Maintain a reasonable processing time for large arc voltage relationship; Avoid the big spark discharge breakdown.

With the increasing of the period, the number of blood vessels in the holes increased, and more densely distributed ingrown connective tissue was gained.
HA coated titanium showed the best compatibility in the chosen materials, which confirmed that mechanical ingrowth and strong attachment of subcutaneous tissue to HA grains had prevented gap formation or slippage between the implant and the tissue [8].

Mixing Machine When the grain size and shape distribution are affirmed, the particles of different classes can be mixed by mixing machine.
A large number of gases are absorbed by these pores.

A number of key factors contribute to these results including: 15% higher strength of TC11 over TC4, the much higher ductility of TC11, especially TC11 has superior heat intensity properties when below 500℃ [3].
It was found in Fig. 4(b) that a thick disturbed or plastically deformed layer was formed underneath the ground surface, the grains had been elongated along grinding direction.

Though heat-resistant and stainless steels differ from each other, they have a number of common physical and mechanical properties that determine their common technological properties with respect to machinability by cutting.
problems in cutting stainless and heat-resistant steels are determined by the following factors: - high hardening of the material during the cutting force deflection considering specifics of the lattice structure; - low thermal conductivity of the material machined, which causes an elevated temperature in the contact zone and activation of adhesion and diffusion phenomena; - the ability to maintain the initial strength and hardness at elevated temperatures, which leads to high specific loads on the contact surfaces of a part with a cutting tool; - great abrasive capacity of high-temperature and stainless steels induced by the presence of a second phase (except for a solid solution) forming inclusions of intermetallic compounds; - reduced vibration resistance of the cutting motion caused by increased hardening of stainless and heat-resistant materials at uneven flow of their plastic deformation; - low surface quality due to increased plasticity of hard-to-work materials; - considerable grain

Therefore, the peak appeared at this location is deduced source from the Gd2O3 which not entirely solute into the cubic lattice and stay in the grain boundary.
More Gd3+ introducing lead to the local structure of Y3+ changed and the coordination of number is intended to 8.

But the result is diversity, the accuracy is highly dependent on the number of test and related empirical formulas[6-9].
Fig.2 The requirements of size for different shape specimens （3）To describe the rock lithology, we focus on structural characteristics of its structure, such as grain thickness, arrangement and joints, bedding and other developmental characteristic and degree of weathering, etc

When the volume content of SiCp rises from 5% to 15%, the Vickers hardness number rises from 150MPa to 214MPa.
The strength of the SiCp/Cu composite is improved by second phase reinforced dislocation and hindrance to dislocation motion, fine-grain strengthening, internal stress, etc., that resulted from adding the SiC particles.