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With a much smaller volume fraction in the composite, nanoparticles are able to provide the composite material with strength enhancements, without affecting other properties.
Mechanical Properties.
In addition to advantages in mechanical properties, PCNC possess improvements in other properties such as gas barrier properties and thermal properties.
Since the filler weight ratio is very small, this occurs without affecting other favorable properties.
These two factors were studied extensively by Xu et al. [15].

Research on properties of materials based on extension evaluation method Yaolin Liu Keywords: Materials, Mechanical Properties, Matter-element Theory, Extension Evaluation Abstract.
It is often used to evaluate things with many affecting factors.
Analysis on factors of properties of materials There are many kinds of factors of properties of materials, including Chemical composition,Heat treatment condition,Physical properties and Mechanical properties etc.
During the selection of materials, the mechanical properties of materials are much analyzed, it has the following factors.
It is suitable for the evaluation with many Influence factors.

Factors Affecting Bond Generally, bond strength between masonry units and mortars is determined by two microstructures that are the amount of hydrate products and bond area between units and mortars.
However, those two factors are determined by mortar and brick mechanical and physical properties, testing methods, curing condition, age and workmanship.
However, those two factors are determined by mortar and brick properties
Materials and Structures (2010) 43:913–922 [5]Venkatarama Sugo, Factors Affecting Bond Strength of Masonry.
I., "Factors Affecting Bond Strength and Resistance to Moisture Penetration of Brick Masonry," Symposium on Masonry Testing, ASTM STP 320, American Society for Testing and Materials, Phila- delphia, 1963, pp. 16-30 [10] Isberner, A.

Hard Thermosetting Polyurethane Plastic Degradable Test and Its Influential Factors Zhifeng LIU 1, a, Jian ZHAO 1,b , Hui XIA1,c, Zhongwei WU 1,d 1 School of Mechanical and Automotive Engineering, Hefei University of Technology, Hefei China 230009 apeak.liu@263.net, b136212178@qq.com, c 872991151@qq.com,d9458319@qq.com Keywords: mechanical and physical methods; hard polyurethane; ATR-FTIR; degradation Abstract.
Finally, the cutting blades of the millstone edge begin to rotate, through collision and impact of the powder particles under the action of centrifugal force, materials are further degradated and softened [2]. 2 3 1 Fig. 1 Three-dimensional structure of shear shredders (1) Central area (2) Millstone area (3) Blade area 1.2 Orthogonal test arrangement To analyze the influence factors of polyurethane degradation, at the early stage of experimental basis, experimental plane parameters, test the inherent properties and external environment is the main reason affecting the degradation speed in which the increase of rotating speed will make the material pressed by shearing, extrusion and friction; extension of time can make material accumulate more mechanical energy, material activity further enhanced; The increase of the feed quantity can reduce the clearance between materials and the cavity wall, meanwhile it can increase the friction; ATR-FTIR test results will be different in
different sizes, so the changes in particle size should be also treated as the factors.
The pulverizer considers three factors and one by one test process is more cumbersome, so in the actual test we base on the orthogonal experiment table to arrange test, without affecting the accuracy of the results.
= （1） is the rate of mass loss, is the increases rate of specific surface. 3.2 The analysis of the degradation factors The machine’s parameters and external environmental factors will affect the degradation effect and rate.

The pore structures on mechanical properties of porous Ti were investigated by 3D finite element models.
Considering the intricate service-environment in-vitro, many factors should be taken into account, e.g. pore shape, pore size, porosity and interconnectivity to appraise the mechanical properties as load-bearing replacements.
Pore Shape Dependence of the Mechanical Properties.
Pore Distribution Dependence of the Mechanical Properties.
Eq. 2 was adopted to evaluate and compare the changes of mechanical properties between S500 and Scp.

Despite that 42CrMo4 steel material properties of are well documented [9,10], there is still an interest in studying the mechanical properties of such material [7,11].
Table 4 – 42CrMo4 mechanical properties Hardness Brinell Yield Strength [MPa] Elastic Modulus [GPa] Tensile Strength [MPa] Poisson’s Ratio 197 415 200 655 0.29 In Table 4 it is shown that in terms of mechanical properties the 42CrMo4 does not meet the same mechanical properties performance as Inconel 713C but it is still a medium performance steel.
An investigation of the factors affecting the design of drum dryers.
Electronic structure and mechanical properties of plasma nitrided ferrous alloys.
Martensitic–austenitic 9–12% Cr steels – alloy design, microstructural stability and mechanical properties.

Welded joint is a mechanical heterogeneous body, which is composed of base metal, weld metal and heat affected zone (HAZ).
The strain rate near crack tip reaches 10 3 under the impact velocity of 5m/s, so dynamic properties under corresponding strain rate should be used in dynamic analysis.
Welded joint is a mechanical heterogeneous body, which is composed of base metal, weld metal and heat affected zone (HAZ).
In this paper, dynamic J-integral is used to characterize the dynamic fracture behaviour of welded joints with mechanical heterogeneity, and the effects of geometry factors on dynamic J-integral is studied.
Base Metal σyd[MPa] n Weld σyd[MPa] n 620 10.32 496 8.09 Table 1 Mechanical properties of the computational model The present 3D FEM computations are performed using a commercial FEM code of MARC.

This work uses nanoindentation and nanoscratch to measure the mechanical properties of evaporation copper thin films.
The mechanical properties are then determined by indentation test and lateral force test produced by nanoindenter and nanoscratch.
The results represent the substrate has a significant effect on the mechanical properties of the thin films.
In engineering applications, one of the basic problems is to determine the mechanical properties of materials.
The aim of this work is to measure the mechanical properties of thin films by using nanoindentation and nanoscratch.

Microstructure and Mechanical Properties of Friction Stir Welds in Aluminium Alloys 2024-T3, 5083-O and 6063-T6 R.
The aim of this research is to study the effect of the welding process on the microstructure and mechanical properties of friction stir welded joints in aluminium alloys 2024T3, 5083-O and 6063-T6.
Some authors account the improvement of mechanical properties in the weld region [3].
The chemical composition and the state of treatment of aluminium alloys are determinant factors of the degradation of mechanical properties that occurs during welding operations. 0 20 40 60 80 100 120 140 160 180-30 -20 -10 0 10 20 30 Distance [mm] Hardness HV1 2024FSW 5083PM 5083FSW 6063PM 6063FSW 2024PM Fig. 3 - Hardness evolution in friction stir welds (FSW) on aluminium alloys 2024-T3, 5083-O and 6063-T6; PM - parent material; TMAZ - thermal and mechanically affected zone; AS - advancing side; RS - retreating side.
Therefore the change in mechanical properties of the welded joint is function not only of the welding technology but depends also of the chemical composition and of the thermal and mechanical treatments of the aluminium alloys.

Previous research showed that mechanical properties of coals are affected by petrographical composition, micro-and macro-fractures and anisotropy etc. [7].
In this paper, the influencing factors of the mechanical property (Young’s modulus) of anthracite coals were studied comprehensively including confining stress condition, water ratio, coal properties and compositions.
Research showed that moisture content is a significant factor influencing the mechanical property of coals [9].
Coal properties.
Coal properties including ash yield and fixed carbon content also affect the Young’s modulus of coals.