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However, preferable mechanical properties are in sore need to achieve better adaption to harsh environment and widen the usage of the material.
In order to further up the mechanical properties of the final product, SiCw was added as reinforcement and the strengthening mechanism was investigated.
Some of the important high-temperature properties are analyzed in the following parts.
The superiority of reinforcement in mechanical properties pulls up the average appearance, so as to enhance the composite material [10].
High-temperature properties of porous SiCw/SiC ceramics.

Introduction Using nano-indentation to test material properties has become an important means of researching mechanical properties of material in nano-scale.
Thus, we decide to introduce correction factor to characterize pile-up.
The indentation energy method improved considers the affect of pile-up, and the hardness are more closer to actual hardness.
But they don’t consider the affect of pile-up, and the hardness calculated are higher than normal, which should be improved.

Aggregate accounts for a larger proportion, as the object of binder cementation, and its physical and mechanical properties have an important effect on the properties of similar material.
Excavation and filling drawing pace is 10m, mining thickness 3.5m, by changing the material properties,that the goaf was filled, after every excavation step in the model it may calculate the subsidence maximum,which determine next filling body height, Then Stepwise excavating, filling and excavating, iterative calculation .
After filling in goaf, the stress of the roof, the front and rear wall of goaf maintain the initial stress state of which the coal has been excavated.Along with the advancing of mining excavation to the right, the second excavate step, new goaf on the right side of the coal wall vertical stress concentration is 7.21MPa, the concentration factor is 1.68, while the left side filling regional stress is 3.72MPa, that it is shows the face is affected by the mining , stress of surrounding rock has advance.
To finish excavation, the pressure of the front coal wall of goaf is 7.63MPa, the concentration factor was 1.78.
Preliminary test on mechanical properties of paste filling material［J］.

The following experimental factors were researched:(1) Thickness of Ni plating layer, (2) Bonding temperature, (3) Bonding pressure and (4) Heat treatment after plating.
In the high temperature diffusion bonding of copper and tungsten, the active solder method was used normally because of the much difference of mechanical and physical properties such as melting point, thermal expansion coefficient, Young' modulus and no solidification occurred between W-Cu.
The mechanical properties of the used material are shown in Table 1.
It was assumed that the interface strength decreased and thermal affect zone spread to the W side with increasing the interface thickness.

Insulation quality, electric and mechanical properties considerably define equipment and apparatus design and characteristics.
Insulation quality, electric and mechanical properties considerably define equipment and apparatus design and characteristics.
PI core is an internal insulating element which provides desired mechanical properties of the insulator.
Silicon appeared to be the most reliable polymeric material in operation, it provides PI surface electric strength and glass fiber core protection against environmental factors.
Minimum mass-dimensional properties.

The photoinduced changes in static mechanical properties such as nanohardness and elastic (Young's) modulus have been determined.
Introduction Recently, the research activities have been focused on photo-induced modifications of mechanical properties of chalcogenide glasses.
Furthermore, it will be shown that opposite changes in local mechanical properties (Young's modulus and nanohardness) take place due to the band-gap light illumination.
The results show that at the initial stage of irradiation this ability decreases by a factor of 20 in comparison with a dark sample.
Dub, Mechanical Properties of Thin Films in Depth-Sensing Indentation, Thin Films in Optics and Electronics, Proc.

Study on the Methods Evaluating the Burning Temperature of Gunpowder CHANG Wen-ping1,a, DU Shi-guo1,a, LU gui-e2,b, JIANG Jin-yong2,b 1 ShiJiaZhuang Mechanical Engineering College, Shijiazhuang 050003, China 2 Ordnance Technical Research Institute, Shijiazhuang 050003, China anuanyangqing@163.com, bjxslge@qq.com Key words: burning temperature; approximate equation; REAL software; infrared thermometer Abstract.
At the same time, thermodynamics and thermophysical properties can be calculated by this software.
These phenomenons indicate that this test method is easily affected by other factors, such as environmental factors.

In this paper, the damage forms of high-speed railway wheels in China are introduced, and the main influencing factors of wheel failure are discussed in combination with wheel damage characteristics.
But research into high speed railway wheel damage still focuses on single wheel failure analysis, and a systematic study in application failure, influencing factors and failure mechanisms of high speed railway wheels is lacking [9-12].
Influencing factors and various types of injuries are also investigated by failure analysis methods.
Research shows that there is a significant difference between the elastic properties of brittle inclusions and the matrix [17,18].
But once there are foreign metal particles, especially with the greater hardness remaining on the rail, both wheel and rail damage will be caused, thereby affecting the running of trains, increasing maintenance workload and the cost of wheels and rail in high-speed railways.

Jiang et al.[3] set up a one-dimensional multi-layer model with burn damage, which showed that the thick of epidermis and dermis affect the temperature and burn injury. 2004, Y.
Finally, find out the factors that influent the effectiveness of freezing, and provide a reference for the follow-up work.
The thermal physical properties of the pork tissue are showed in table 1[12].
Meanwhile, there is phase change in the process of liquid nitrogen freezing the pork tissue, and the thermal physical properties of biological tissue and the state of it are related [13], so we should consider the change of the thermal physical properties in simulation.
Since there are not clearly thermal physical properties of the pork tissue, we use the thermal physical properties of soft tissue, refer to the thermal physical properties in the literature [13].

The analysis of the scientific literature was made at the base of theoretical considerations about the problems that have been encountered with hip resurfacing prosthesis and the factors that could affect the clinical performance of the hip resurfacing prosthesis.
These problems will be discussed below in details after a concise analysis of the factors that could affect the clinical performance and the risk of fracture in the case of hip resurfacing arthroplasty.
These factors could be classified in: patient, surgical, and postoperative factors.
Patient factors included sex and proximal femoral bone quality.
The manufacturing processes will modify not just the alloys structure and consequently the properties (like influence on the incidence of hypersensitivity responses), but also the surface.