Search results

Published literature is rich with investigations of mechanical properties of composites, but fewer publications are focused on thermal properties.
The fibers distribution determines the mechanical properties of the composite materials [4].
Published literature is rich with investigations of mechanical properties of composites, but fewer publications are focused on thermal properties.
It is believed that interfacial regions are formed around the particles and affect to a great extent the dielectric properties of nanocomposites.
Other factors may overshadow the potential advantages that these layers can offer to the thermal conductivity of nanocomposites.

The results demonstrated the surface layer affected by compressive residual stresses is very thin and the peak is located on the surface.
The result of shot peening can be affected by the shot parameters such as shot size, shape, velocity, hardness and material and the component properties such as hardness, strength, coverage and other factors such as temperature, duration of shot peening[7].
Table 1 lists material properties of shot and peened target.
Table 1 Material properties of shot and peened target Materials r[kg/m3] E[Gpa] m Et[Mpa] sy[Mpa] sb[Mpa] Shot ball 20CrMnTi 7800 7800 210 206 0.3 0.27 ---- 2500 ---- 850 ----- 1080 Notes: E represents Young’s modulus. m represents Poisson’s ratio. r represents density.
Stranart, Relaxation of peening residual stresses due to cyclic thermo-mechanical overload, J. of Eng.

Not only do they possess excellent mechanical property, but also ensure excellent heat-insulating property.
Three factors cause the heat-insulating property.
The mechanical properties of samples are shown in Table 2, Table 3 and Table 4.
Due to the porous structure, Al2O3-SiO2 aerogel is a kind of brittle materials and possesses poor mechanical properties which are virtually nil.
Using fibers as reinforcement is an effective method to enhance the mechanical properties.

The microstructure, thermal insulation, temperature resistance and mechanical properties were analyzed respectively, the performance advantages and disadvantages of three kinds of ceramic fiber felt were given, and its internal causes were studied.
Properties testing.
The mechanical properties were tested by microcomputer controlled electronic universal testing machine.
Fig. 5 The Linear shrinkage curves at different temperatures of the fiber felt The Mechanical Properties of Fiber Felt The conformability and good compressibility of ceramic fiber felt is an important factor for its application in the field of thermal protection, therefore, the mechanical properties of the three kinds of fiber felt were studied.
In terms of mechanical properties, quartz fiber felt is softer and easier to compress than mullite fiber felt and high silica fiber felt, so it has more advantages in flexible thermal insulation materials.

Introduction One of the major world tendencies in the development of engineering industry is technological development and creation of high-tech materials that able to have the necessary physical, mechanical and chemical properties and, as a rule, having a certain structure.
The basic properties of the sintered porous slide bearings [9], are determined by their functional qualities: self-lubricity, good running-in ability, wear resistance and strength.
The combined method of the process has the wide range of controllable factors, affecting on the quality level of the formed surface, and therefore, it is convenient and effective to use in the forming process of the hard-to-punch and the heterogeneous materials.
Aluminum alloys (compound, properties, technology, using) Reference book.
Factors influencing in the technological capabilities of metal-ceramic sintered materials, during the finishing process.

Then, HTHP filter press was used to investigate the filtrate properties.
One of the factors that cause the flocculation of solids is temperature.
Furthermore, mud weight may affect the penetration rate.
Hence, the increase in temperature affect the result and has direct relationship with the properties measured.
J., and Members AIME (1965) Factors Involved in High-TemperatureDrilling Fluids

Bone screws which used for interfragmentary bone surgery manufactured by lathe machine with various conditions such as various thread per inch, various cutting tools angle, various cutting tools properties and also various depth of cut.
Based on the result from the different machining parameter, they are affecting to the quality of the cortical screw on the microstructure, and the surface roughness.
Ti based alloy and Co based alloy have demonstrated very good properties for implants which are excellent corrosion resistance and biocompatibility [3].
Many factors influence the outcomes of this bone screw material characteristics.
In the process of making the bone screw head, cutting speed factor was also influential.

Initial pressure drop increase linearly with the increase of flow rate, that is: P kQ∆ = （1） The coefficient k is related to metal rubber filter structure parameters and liquid properties.
Therefore porosity is an important factor affecting filtration performance of MR filters.Fig.4 and Fig.5 show the filtration pressure drop and filtration efficiency of different porosity metal rubber filters, respectively.
This phenomenon due to that filter thickness is one of decisive factors of filtration pressure drop.
On the other hand, filtration efficiency of two kind metal rubber filters (molding thickness L=5mm and L=10mm respectively) are close to each other, so the influence of molding thickness on filtration efficiency is little and can be neglected. 3 Conclusions (1) Line diameter, porosity and molding thickness are major factors affecting initial pressure drop of metal rubber filter under the clean liquid condition.
Chinese Journal of Mechanical Engineering, 2005,(41)6: 50-54 [5] Y.H.

However, little has been studied concerning creep fracture properties of P92 steel weldment.
The creep fracuture behaviour and the factors effecting the type crack were analysed, including hardness, microstructures and creep voids.
Results and discussion Creep rupture properties and failure location of the weld joint specimens.
Typical EDAX analysis of precipitate in creep void for specimen at 923K and 120MPa after rupture time of 1546.5h Previous papers have indicated the metallurgical factors affecting the creep property deterioration in the FGHAZ and the eventual type cracking such as e.g.the fine grain size[8], coarsening of M23C6[9], the low hardness[10] etc.
●Except for coarser M23C6 carbides and an equiaxed fine grains, intermetallic Fe2(Mo,W) Laves phase precipitated on grain boundaries in FGHAZ during creep is probably the significant factors caused the type failure.

properties of rectangular I-beam support, U-steel support, single I-beam arch support and double I-beam arch support.
Luo Yong[5] analyzed wall thickness filling technology and properties of the new wall back filling material, and did experiment on material mechanical properties, which successfully solutes the reducing of support ability in roadway because of the space between U-shaped support and surrounding rock.
Design process of new high strength support Analysis on mechanical properties of high strength support As support resistance is changing continuously with the dynamic pressure, support was simplified for pure bending deformation and force uniform for ease of calculation.
The maximum vertical stress concentration factors of plan A and plan B are 1.33 and 1.32, which are almost the same.
The maximum stress concentration factor of plan C is only 1.28.