Microstructural and thermal properties of piston aluminum alloy reinforced by nano-particles

2018 ◽  
Author(s):  
Mohammad Azadi ◽  
Sama Safarloo ◽  
Fatemeh Loghman ◽  
Roham Rasouli
Keyword(s):  
Aluminum Alloy ◽  
Thermal Properties ◽  
Nano Particles

Particle properties for suspension plasma spray

2014 ◽  
Vol 24 (6) ◽  
pp. 1378-1388 ◽  
Author(s):  
Qian Lijuan ◽  
Xianyu Chu
Keyword(s):  
Thermal Properties ◽  
Physical Properties ◽  
Solid Particle ◽  
Plasma Spray ◽  
Operating Conditions ◽  
Solid Particles ◽  
Suspension Plasma Spray ◽  
Nano Particles ◽  
Final Particle ◽  
Content Type

Purpose – The purpose of this paper is to use comprehensive model to investigate the effects of particle physical properties on in-flight nano-particles behavior for the radio frequency suspension plasma spray. Design/methodology/approach – In this paper, both the effects thermal properties of solvent and solid particle on the evolution of particle size, velocity and temperature are discussed. Besides, the numerical analysis is also conducted to investigate the influences of particle physical properties on the characteristic distributions of particles for poly-disperse cases. Findings – Results show the thermal properties of solvent have critical effects on the discharged point of the solid particles, but little influence on the final particle velocity and size, as well as their distributions. The final state of particle temperature is mainly determined by the solid particle thermal properties, especially depending on the boiling point. Originality/value – Most of the former studies took the experimental approaches and mainly focussed on the operating conditions effects. While beyond the operating conditions, the variety of particle physical and thermal properties also has strong effect on particle heating performance.

scholarly journals ENHANCING HEAT TRANSFER COEFFICIENT AND BREAKDOWN STRENGTH OF MINERAL OIL BY (AL2O3 AND TIO2) NANOPARTICLES

2021 ◽  
Vol 25 (Special) ◽  
pp. 2-33-2-38
Author(s):  
Mohammad M. Ali ◽  
◽  
Amer H. Majeed ◽  
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Thermal Properties ◽  
Transfer Coefficient ◽  
Breakdown Strength ◽  
Dielectric Strength ◽  
Mineral Oil ◽  
Nano Particles ◽  
Paper Study ◽  
Enhancing Heat Transfer

The aims of this paper study the effects of two types of nanoparticle on dielectric strength and heat transfer coefficient within mineral oil used in an electrical transformer. These nanoparticles (NPs) including (semi conductive TiO2 and insulating Al2O3), have been prepared with the same size and surface modification, it is shown that nano-particles enhance insulating and thermal properties of mineral oil as well as the degree of enhancement is dependent on the NPs concentration.

Study on Bearing Dynamic Properties of Nano-Particle Reinforced ZA27 Alloy Composite Material

2011 ◽  
Vol 328-330 ◽  
pp. 1467-1470
Author(s):  
Zhou Qin ◽  
Kun Peng Ma
Keyword(s):  
Aluminum Alloy ◽  
Dynamic Properties ◽  
Dynamic Performance ◽  
Nano Particles ◽  
Zinc Alloy ◽  
Element Analysis ◽  
Application Range ◽  
Za27 Alloy ◽  
Frictional Characteristic ◽  
The Finite Element Analysis

Although the zinc-aluminum alloy has gotten substantial increase in terms of strength and friction characteristics than the traditional zinc alloy, it has limitation in the operating temperature and speed. In order to further improve the frictional characteristic and expand its application range, we adopted the inexpensive zinc-aluminum alloy of ZA27 reinforced by TiC nano-particles to replace the traditional bronze alloys (ZQSn6-6-3) to produce bearing bush. And through its dynamic performance of the finite element analysis to prove particle reinforced ZA27 bearing bush has good dynamic performance.

scholarly journals Research on the Compound Optimization Method of the Electrical and Thermal Properties of SiC/EP Composite Insulating Material

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3369
Author(s):  
Xupeng Song ◽  
Xiaofeng Xue ◽  
Wen Qi ◽  
Jin Zhang ◽  
Yang Zhou ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Composite Material ◽  
Thermal Properties ◽  
Heat Conduction ◽  
Composite Materials ◽  
Breakdown Strength ◽  
Optimization Method ◽  
Nano Particles ◽  
Electrical Performance ◽  
Conduction Channel

In this paper, in order to improve the electrical and thermal properties of SiC/EP composites, the methods of compounding different crystalline SiC and micro-nano SiC particles are used to optimize them. Under different compound ratios, the thermal conductivity and breakdown voltage parameters of the composite material were investigated. It was found that for the SiC/EP composite materials of different crystal types of SiC, when the ratio of α and β silicon carbide is 1:1, the electrical performance of the composite material is the best, and the breakdown strength can be increased by more than 10% compared with the composite material filled with single crystal particles. For micro-nano compound SiC/EP composites, different total filling amounts of SiC correspond to different optimal ratios of micro/nano particles. At the optimal ratio, the introduction of nanoparticles can increase the breakdown strength of the composite material by more than 10%. Compared with the compound of different crystalline SiC, the advantage is that the introduction of a small amount of nanoparticles can play a strong role in enhancing the break-down field strength. For the filled composite materials, the thermal conductivity mainly depends on whether an effective heat conduction channel can be constructed. Through experiments and finite element simulation calculations, it is found that the filler shape and particle size have a greater impact on the thermal conductivity of the composite material, when the filler shape is rounder, the composite material can more effectively construct the heat conduction channel.

scholarly journals Design and Analysis of a Rectangular Fin with Comparing by Varying Its Geometry and Material, With Perforation and Extension

2021 ◽  
Vol 12 (2) ◽  
pp. 3039-3050
Author(s):  
Kota Leela Sai Bharath , Et. al.
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Thermal Analysis ◽  
Aluminum Alloy ◽  
Thermal Properties ◽  
Heat Exchanger ◽  
Case Studies ◽  
Surface Area ◽  
Heat Transmission ◽  
Conducting Coating

Extending fins improve the rate of heat transfer or decrease convection. A fin is only for the reason of increasing the surface area in order to maximize heat transmission like a motor, heat exchanger, CPU, or to a heat-generating surface area. The benefit of performing thermal analysis on a flat fin is that it will tell how far heat is dissipated. This paper's primary purpose is to design and evaluate the thermal properties of rectanglular fin with varying geometry and content, and to expand the rectangular fin plate with Catia5R tools. Catia and Ansys are used to construct the geometries, and analyses of thermal properties are applied to them The tip is 5mm wide at present, decreased to 4mm. The aluminum alloy used in the manufacture of the rectangular fin body has thermal conductivity of 110-160 mK. The conducting coating on this paper is replaced with Aluminum Alloy 1100, which has a thermal conductivity of 210 to the mW/mk for the substrate and many unusual and prolonged margins. Case studies are used and graphed as well as total conclusions are drawn.

scholarly journals Dynamic and Thermal Properties of Aluminum Alloy A356/Silicon Carbide Hollow Particle Syntactic Foams

Metals ◽  
2014 ◽  
Vol 4 (4) ◽  
pp. 530-548 ◽  
Author(s):  
James Cox ◽  
Dung Luong ◽  
Vasanth Shunmugasamy ◽  
Nikhil Gupta ◽  
Oliver Strbik ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Aluminum Alloy ◽  
Thermal Properties ◽  
Hollow Particle ◽  
Syntactic Foams
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