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Introduction The I-III-VI2 ternary compounds can crystallize in the tetragonal chalcopyrite structure and form a large number of semiconducting materials.
No grain boundary could be visually observed, and Miyake reported the Laue pattern of CuGaSe2 single crystal grown by the identical THM [10].

Based on the conditions, superfine cement which is chosen from a number of different plugging agents is generally regarded as preferred material in deep water plugging.
The median grain diameter of SHD is 10.4μm and SCC is 13.7 μm.

While commercialization of 4H -SiC is aggressively pursued by leading suppliers of SiC substrates, structural defects such as micropipes, low angle grain boundaries, stacking faults, threading edge dislocations, basal plane dislocations and threading screw dislocations limit the device yield and performance.
The top three drivers are the graphite hotzone, number of wafers per boule and boule run yield.

The ground floor is used to deposit agricultural implements, breed fowls and livestock, storage fertilizer or be used as toilet; the second floor is used as living room, bedrooms, kitchen, and people live in this floor; the third floor is used as the place to storage grains.
Acknowledgements This work was financially supported by national science foundation of China 51378365 and 51178313/E0801, and by the National “Twelfth Five-Year” Science & Technology Support Plan: the city high density space efficiency optimization key technology research (Subject Numbers: 2012BAJ15B03).

Most important physical and chemical characteristics of base oil: Kinematic viscosity at 40 °C, 66 mm2/s; Viscosity class: SAE 20; Base number КОН on 1 g of oil 0,01 mg; Sulphur mass fraction, 0,6 %; Flash point, 235 °C; Pour point, -15 °C; Ash content, 0,004 %.
Bai, Tribological behaviors of surface-coated serpentine ultrafine powders as lubricant additive, Tribology International 43 (2010) 667–675 [6] Ting Luo, Xiaowei Wein, Xiong Huang, Ling Huang, Fan Yang Tribological properties of Al2O3 nanoparticles as lubricating oil additives Ceramics International 40 (2014) 7143–7149 [7] Ting Luo, Xiaowei Wein, Haiyan Zhao, Guangyong Cai, Xiaoyu Zheng, Tribology properties of Al2O3/TiO2 nanocomposites as lubricant additives, Ceramics International 40 (2014) 10103–10109 [8] Sheida Shahnazar, Samira Bagheri, Sharifah Bee Abd Hamid, Enhancing lubricant properties by nanoparticle additives, International journal of hydrogenenergy 41 (2016) 3153-3170 [9] Zalite I., Grabis J., Palcevskis E., Herrmann M., Plasma Processed Nanosized-Powders of Refractory Compounds for Obtaining Fine-Grained Advanced Ceramics.

The small punch tests have been successfully applied in a number of recent studies [9-13] covering zirconium alloy, stainless steels, and aluminium alloys.
Primary α grains (dark), acicular α phase (needle-like) and β phase are evident in the microstructures (Fig. 1 (a)).

In a real working process the stress wave may be reflected by grain boundaries and rear surface.
Acknowledgments The present work is supported by the Natural High-tech Project of China under grant number 2006AA03Z110).

Here, io represents the exchange current density; aα , the anodic charge transfer coefficient; z, the charge transfer number; F, Faraday constant; R, the ideal gas constant; T is the temperature.
In our recent work, it is suggested that the ceramic reinforcements prevent the grain growth and the resulting fine microcrystallite enhances the mechanical properties such as yield strength, ultimate tensile strength and elongation.

Table 1 Characteristics of Pb0.97Sr0.03[(Mn1/3Nb2/3)0.07(Zn1/3Nb2/3)0.06(Zr(1-x)Tix)0.87]O3 ceramics with optimized processing conditions Composition x Crystal structure Theoretical Density (%) Grain Size (µm) 0.48 PC 94.05 2.84 0.50 PC+T 94.03 2.72 0.52 PC 95.21 2.94 In the first approximation, it could be said that the composition between x = 0.50 is close to the morphotropic phase boundary (MPB) of this system, where the structure of the Pb0.97Sr0.03[(Mn1/3Nb2/3)0.07(Zn1/3Nb2/3)0.06(Zr(1-x)Tix)0.87]O3 compositions is gradually changing from pseudo-cubic to tetragonal.
This is due to the increased ease of reorientation during poling by the transformation of a number of 180° domains into 90° ones.

The spherical steel powder grains are bonded by polymer, after reaction between the solvent and the metal-polymer granules.
Bronze infiltrated steel is a typical system, which can be used for a large number of applications, including mould inserts for plastic injection.