نتایج جستجو برای: infillings and coatings

تعداد نتایج: 16833906  

Journal: :Geosciences 2023

The permanence of a buried body in soil always induces the formation decomposition island that can serve as significant recording location to understand how persistence clandestine grave affects soil. This study aims analyze elemental exchange from bodies soil, with focus on phosphorus content, and determine effects environmental factors its persistency. experiment was carried out using eleven ...

Journal: :علوم و فنون بسته بندی 0
علیرضا سوخته سرایی الهام نوروزی

in this study, the potential use of nano-coatings for food packaging industry has been investigated. therefore, this study has been presented in three sections: the application of nanocoatings in the food industry, natural, edible and biodegradable nano coatings. the use of nanoscale or multiatomic coatings have presented specific features in the packing industry. coatings which have shown thei...

Journal: :dental research journal 0
mehdi mehdikhani-nahrkhalaji mohammad hossein fathi vajihesadat mortazavi sayed behrouz mousavi ali akhavan abbas haghighat

poly (lactide-co-glycolide)/bioactive glass/hydroxyapatite (pbgha) and poly (lactide-co-glycolide)/ bioactive glass (pbg) nanocomposite coatings with bone. materials and methods: sol-gel derived 58s bioactive glass nanoparticles, 50/50 wt% poly (lactic acid)/poly (glycolic acid) and hydroxyapatite nanoparticles were used to prepare the coatings. the nanocomposite coatings were characterized by ...

Journal: :Academic journal of science and technology 2022

In order to reveal the mineral filling sequence and fluid action process in dissolution pores of bedded siliceous rocks Dongrong Formation Sanjiang Basin, petrological characteristics, geochemical analysis testing methods were comprehensively applied research, databases major amount rare earth elements established, sedimentary environment, origin source materials systematically judged again. Th...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

nanoindentation techniques are widely used for the study of nanomechanical properties of thin nanocomposite coatings. theoretical concepts and practical use of nanoindentation method are summarized with reporting the applications of these tests in characterization of some particular thin nanocomposite hybrid coatings prepared by sol-gel process. the better mechanical properties can be obtained ...

Journal: :international journal of iron & steel society of iran 2012
m. alishahi s. m. monirvaghefi a. saatchi

in the present study, ni-p-cnt composite coating was successfully fabricated via electroless plating. scanning electron microscopy (sem) was used to characterize the coatings. the effect of cnts concentration in the bath on its content in the composite coatings was studied. furthermore, the corrosion behaviour of the coatings with different contents of cnts was evaluated using tafel polarizatio...

Journal: :روش های عددی در مهندسی (استقلال) 0
مهدی صالحی m. salehi

in this research, tribological behavior of ti-ni-p intermetallic coatings on titanium substrates have been investigated under dry reciprocating conditions. hardness profile testing results exhibit that high surface hardness has been attained and static indentation result shows that the intermetallic coating has better adhesion strength than the conventional ceramic coatings. in this respect, th...

A. Saatchi F. Tabatabaei M. M. Verdian M. Monirvaghefi M. Salehi M. Tafazoly

Ni-P and Ni layers multilayer coatings were applied to AZ31 magnesium alloy utilizing electroless and electrodeposition procedures. The aim of the project was to decrease cracks and increase corrosion resistance of the coatings. In order to compare the coatings, the effect of single layer electroless Ni-P coatings with different thicknesses was also investigated. The microstructure and phase co...

TiO2 nano-particles were used in electroless plating bath to obtain Ni/P/nano-composite coatings. The coatings were heat treated at 200, 400, 600 and 700 oC and their chemical and physical properties were investigated and it was found that 400 oC was the optimum temperature for the heat treatment of the coatings. The micro-hardness test of coatings showed that t...

Journal: :journal of advanced materials and processing 0
mahdi mirzaaghaei student, department of materials engineering, naghshe jahan university, isfahan, iran mohammad hossein enayati professor, department of materials engineering, isfahan university of technology, isfahan, iran mahdi ahmadi master of science in coverage, iran aircraft company

in industrial applications, most materials are exposed to wear and friction because multiple conditions are used. however, the tribological properties of these materials can be improved with different techniques. one such technique that improves the frictional property of a surface is the use of self-lubricating coatings. in this study, multicomponent coatings of nominal composition cu-ni3al-mo...

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