نتایج جستجو برای: precipitation composites were

تعداد نتایج: 3566916  

Journal: :نشریه دانشکده فنی 0
آرمان زارع بیدکی دانشگاه تهران farshad akhlaghi دانشگاه تهران

in this study, al/gr composites with 5,10,15,20 weight percent of graphite were produced by in-situ powder metallurgy method. the produced powder mixtures were consolidated and sintered at optimum conditions. the resultant composites were solution treated at 495?c and aged at 170?c. the influence of graphite content on the bending strength of composites was studied. the distribution of graphite...

Journal: :international journal of advanced design and manufacturing technology 0
s. mohammad reza khalili k.n. toosi university of technology south tehran branch, islamic azad university r. eslami farsani k.n. toosi university of technology v. daghigh islamic azad university

changes in moisture content and temperature can perturb both stiffness and strength and as such the impact resistance of composite structures. in this paper, the pre-notched basalt fibre reinforced epoxy (bfre) composite specimens are studied under charpy impact loads in order to investigate the changes in impact energy absorption (fracture toughness) with different kinds of aging conditions. t...

2016
Ander Orue Arantxa Eceiza Cristina Peña-Rodriguez Aitor Arbelaiz

The main aim of this work was to study the effect of sisal fiber surface treatments on water uptake behavior of composites based on untreated and treated fibers. For this purpose, sisal fibers were treated with different chemical treatments. All surface treatments delayed the water absorption of fibers only for a short time of period. No significant differences were observed in water uptake pro...

2012
Lu Shang Guangping Han Fangzheng Zhu Jiansheng Ding Todd Shupe Qingwen Wang Qinglin Wu

High-Density Polyethylene (HDPE)-based composites with alkaline copper quaternary (ACQ)and micronized copper quaternary (MCQ)treated wood fibers were manufactured through injection molding. The mechanical properties, water absorption, and biological resistance properties of the fabricated composites with different coupling treatments were investigated. Composites with ACQand MCQ-treated wood ha...

Journal: :IJCAET 2017
G. Kalusuraman I. Siva J. T. Winowlin Jappes Sandro Campos Amico

In this investigation, studies are carried out on the mechanical properties of hybrid polymer composites. Hybrid composites can reach a better combination of both artificial and natural fibre properties. Different weight percentages of jute fibres were hybridised with coconut sheath to produce the composites through compression moulding. Composites were produced using untreated and treated fibr...

2016
Shulin Xiang Xiaojun Wang Manoj Gupta Kun Wu Xiaoshi Hu Mingyi Zheng

In this work, graphene nanoplatelets (GNPs) reinforced magnesium (Mg) matrix composites were synthesised using the multi-step dispersion route. Well-dispersed but inhomogeneously distributed GNPs were obtained in the matrix. Compared with the monolithic alloy, the nanocomposites exhibited dramatically enhanced Young's modulus, yield strength and ultimate tensile strength and relatively high pla...

Journal: :Journal of Materials Science: Materials in Electronics 2021

Li4Ti5O12/V2O5 nanocomposites were synthesized by one-pot co-precipitation method. The structure and morphology of the as-prepared materials analyzed X-ray diffraction transmission electron microscopy. results show that composites with different nano size successfully synthesized. sample (2 wt% V2O5 addition Li4Ti5O12) keep at a high discharge capacity 169.9 mAh g− 1 after 150 cycles C. existen...

Journal: :Journal of physics 2023

Abstract Mn-Zn ferrite has been widely used in cancer therapy. In this paper, CNTs/Mn-Zn composites with different CNT contents were synthesized using the co-precipitation process and then sintered into bulk materials by SPS. The nanoparticles have good heating temperature control effects under an alternating magnetic field. Furthermore, thermoelectric properties. correlation between mechanism ...

A. Saeedi M. Chitsazzadeh M. Mehrdad Shokrieh

Excellent mechanical properties of carbon nanotubes (CNTs) make them outstanding candidate reinforcements to enhance mechanical properties of conventional composites. The glass/polyester composites are widely used in many industries and applications. Improving the mechanical properties of such composites with addition of CNTs can increase their applications. In this research, multi-walled carbo...

2013
ASHOK K. SHARMA YASHPAL SHARMA

Composites of polyaniline and carbon nanotube (CNT) were prepared by in-situ chemical polymerization method using various aniline concentrations in the initial polymerization solution with p-toluene sulfonic acid (PTS) as secondary dopant and mechanical mixing of the PANI and CNT using different weight ratios of PANI and CNTs. The structural characterizations of the composites were done by Four...

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