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Rajan Department of Mechanical Engineering, Dr.
Due to small sizes and very large specific surface areas of nano particles, nano fluids have superior properties like high thermal conductivity, more stability which is primary requirement for lubricating oils.
With this experiment, it is proved that Brownian motion is one of the key factors behind the observed high effective thermal conductivity of nanofluids.
The properties of POE oil, MO, TiO2 and Al2O3 nano particles are given in Table 1.
The comparison of properties of various mixed nanolubricant with mineral oil and POE oil are given in Table 1.

Three important parameters were the coefficient of friction between material property, splitting and curling force, material and die.
Scale factor of size effect.
The springback function is a key factor in the micro-stamping process that the behavior of the microtube tube-end nosing forming after unloading should be considered.
Leu, Finite-Element Simulation of Hole-Flanging Process of Circular Sheet of Anisotropic Materials, International Journal of Mechanical Sciences 38 (1996) 917-933
Yu, On the axial splitting and curling of circular metal tubes, International Journal of Mechanical Sciences 44 (2002) 2369-2391

The contact angle is found to be dependable on the surface layer properties of the metals which in turn is affected by the dose time. 1.
Plasmas are largely employed for the modification of surface properties of materials.
The plasma treated metal surfaces were investigated in regard of improved surface properties. 2.
Contact Angle Measurement: Contact angle measurements have been performed to evaluate macroscopic properties of material surface such as surface energy and wettability.
Soliman, Investigating Wettability and Optical Properties of PADC Polymer Irradiated by Low Energy Ar Ions , Surface and Coating Technology Surface 253 (2014) 249-254

Fabrication of Ag Nanoparticles Colloids by Pulsed Laser Ablation in Liquid Bing Xu 1,2, Ren-Guo Song 1* 1 The MOE Key Laboratory of Mechanical Manufacturing and Automation, Zhejiang University of Technology, Hangzhou, 310014, China 2 Taizhou Vocational College of Science and Technology, HuangYan, 318020, China e-mail: xubing198287@msn.com; e-mail: songrg@zjut.edu.cn (*Corresponding author) Key words: Ag Nanoparticles, Colloid, Pulsed Laser Ablation Abstract.
As far as we know, the size controlling of nanoparticles is of extreme importance in metal colloids formation because of the properties of nanoparticles depending on their size.
Kim et al[7] reported the process is effective for preparing nanoparticle suspensions having relatively uniform size distributions, while the laser fluence and the degree of compaction strongly influence the size of the produced nanoparticle in air, the sedimentation time is shown to be the most critical factor to determine the mean size of the suspended particles.
Fig 1 shows the character of Ag nanoparticles is affected by the properties of solutions.

Introduction According to linear fracture mechanics the crack growth rate is controlled by the stress intensity factor (SIF), so the non-singular stress has no effect on the growth rate.
For example, Tanaka et al. and Miller reported that the action of a stress parallel to a crack affects crack progress velocity [3, 4].
As a result, it was suggested that existence of a stress parallel to a crack affects crack progress velocity in AZ31B [5-7].
The mechanical property of AZ31B and 2024T3 are shown in Table 3, and the dimension and form of a specimen are shown in Fig.1.
Table 3 Mechanical properties of magnesium alloy and aluminum alloy.

Analysis equation of phase-change In the phase-change process, the control equation is （1） Where, [K] =conductive matrix, including thermal conductivity, convection coefficient, radiation rate and the shape factor.
Size, element types and material properties of the model The size of the simplified two-dimensional axial symmetry model is shown in Fig.2.
Material properties Graphite crucible and the sleeve are the same material.
Structure improvement of crucible can not change the temperature field but not affect the accuracy that optical pyrometer measure the crucible.
The Thermodynamic Properties of Platinum.Platinum Metals Rev., 2005, 49(3):141-149

The Effect of Equivalent Strain on Punch Load for Cold Backward Extrusion of Copper Cans MIŁEK Tomasz1, a * 1Department of Applied Computer Science and Armament Engineering, Faculty of Mechatronics and Mechanical Engineering, Kielce University of Technology, Al.
Cold extrusion in comparison with other methods use in industrial application has many advantages such as: minimum material waste, high dimensional accuracy, reduction or complete elimination of machining, good surface finish, better mechanical properties of products than those of the original material due to favourable grain flow [3,4].
The factors that affect the zone mentioned above include the can bottom thickness and the reduction in the area [1].
They analyzed the characteristics of metal flow and the effect of different friction factors.
The formula combines the advantages of both models [18,19]: (9) where m is the friction factor, is the normal contact pressure.

Matching the shape and contours to the adjacent central incisor is the crucial factor to achieve an esthetic result.
Maxillary central incisors are the key point of an esthetic smile and should exhibit a high degree of symmetry across the midline[2].Matching the shape and contours the adjacent central incisor is the crucial factor to achieve an esthetic result.Biogeneric reference is a design mode in CEREC 3.0 software that allows the practitioner to fabricate a restoration that is an exact esthetic match of the collateral tooth especially when restoring single central incisor[3].
This was related to the high mechanical properties of the resin cement and the adhesion established at the interfaces between ceramic, resin cement and tooth structure[8].
This can adversely affect the form match between central incisors[9-10].

Among these MMC’s silicon carbide particulate, reinforced aluminium-metal matrix composites (Al/SiCp-MMC’s) are quite promising composite material due to their wear properties, higher modulus of elasticity to density (E/ρ) ratio than the matrix material and comparatively easy manufacturability.
These properties are controlled by the aluminium as matrix material, the SiC as reinforcing material and their interface.
Despite very superior mechanical properties the wide spread engineering application is resisted due to its poor machining characteristics particularly excessive tool wear and poor surface finish.
The weight of an ingredient is evaluated as follows: - Weight of ingredient Weight % of an ingredient = ---------------------------- X 100 (2) Total weight of Media The rheological properties of AFM media constantly present abrasive particles to the work piece surface in a continuous and uniform manner.
Then mixture of AFM media and abrasive particles passed through the work sample. 2.4 Experimental Procedure There are several factors that affect the quality characteristics of the AFM process such as extrusion pressure; abrasive mesh size; number of working cycle; media flow volume; media rheology; jig & fixture; length of restricting passage etc.

The forming of the austenitic interlayer in the welding area leads to the formation of layered composite coating [5] which in its turn contributes to the increase of the structure discreteness and mechanical properties of the welding area.
Surfacing at amperage 180 А with the introduction of forced cooling of weld metal allows to form a welding area with a gradual transition of properties from the metal base to the weld metal due to the formation of crystallized metal base of high alloyed austenite and absence of martensite in the welding area.
Conclusions Surfacing on the current 180 A with the introduction of forced cooling weld metal, fusion zone allows you to create a smooth transition from the properties of the substrate to the weld metal due to the formation of high-alloy austenitic crystal layer, and to prevent the formation of martensite in the weld zone.
Pykin, Comparative analysis of gas-dynamic factors at the noise radiation of plasmatrons, Welding production. 1 (2005) 31-36
Sheksheyev, Investigation of the structure and mechanical properties of welded joints in steels of the K56 strength grade in different welding conditions, Welding International. 1 (2014) 70-74