نتایج جستجو برای: morphological and mechanical properties

تعداد نتایج: 16975017  

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
ساینا شمس زاده sayna shamszadeh وقارالدین اخوان زنجانی vaghareddin akhavan zanjani dental school, shahid beheshti university of medical sciences, tehran-iran، دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی. مریم مفیدی maryam mofidi dental school, shahid beheshti university of medical sciences, tehran-iran، دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی. مریم عبده تبریزی maryam abdo tabrizi dental school, shahid beheshti university of medical sciences, tehran-iran، دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی. صنمبر یزدانی sanambar yazdani

objective: despite great advances made in dental composite resins, their use is associated with some concerns regarding their mechanical properties such as their flexural strength. considering the introduction of different composite resins into the market, there is a need to compare their mechanical properties and particularly flexural strength. this study aimed to compare the flexural strength...

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 nanoscience and nanotechnology 2010
j. davoodi m. ahmadi

the mechanical properties including elastic stiffness constants as well as bulk modulus of palladium (pd) nanowire were calculated in the constant temperature and pressure (npt), ensemble by molecular dynamics (md) simulation technique. the quantum sutton-chen (q-sc) many-body potential was used to calculate the cohesive energy as well as forces experience by every atoms. the temperature and pr...

2014

Investigation of Physical, Mechanical, and Morphological Properties of Acrylonitrile Butadiene Styrene on Unsaturated Polyester Resins a D., Nouzari , b * O., Arjmand , c M., Mouavi a , c Department of Industrial Polymer Engineering, Islamic Azad University, Science and Research Yazd Branch, Yazd, Iran. b Nourabad Mamasani Branch, Islamic Azad University, Nourabad, Iran. _______________________...

2013
Md Nazrul Islam Rudi Dungani HPS Abdul Khalil M Siti Alwani WO Wan Nadirah H Mohammad Fizree

In this study, a green composite was produced from Oil Palm Trunk Lumber (OPTL) by impregnating oil palm shell (OPS) nanoparticles with formaldehyde resin. The changes of physical, mechanical and morphological properties of the OPS nanoparticles impregnated OPTL as a result of natural weathering was investigated. The OPS fibres were ground with a ball-mill for producing nanoparticles before bei...

Journal: : 2021

Evaluating the physical, mechanical and morphological properties of calcium-alginate films coated with sunflower oil or tallow fat

2014
Youngchan Kim Hyoeun Shim Kyoohyun Kim HyunJoo Park Seongsoo Jang YongKeun Park

Due to its strong correlation with the pathophysiology of many diseases, information about human red blood cells (RBCs) has a crucial function in hematology. Therefore, measuring and understanding the morphological, chemical, and mechanical properties of individual RBCs is a key to understanding the pathophysiology of a number of diseases in hematology, as well as to opening up new possibilitie...

In this study, thermo-mechanical stability of two-pass constrained groove pressing (CGP) AA1050 sheets towards friction stir welding (FSW) employing hybrid powder (%50vol. micrometric graphite powder+%50vol. α-Al2O3 nanoparticles) was investigated by examining its microstructural evolutions and mechanical properties. FSW was carried out via different process variables in order to reach the high...

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2012
s. mohammadi* f. abdi

in the presented work, sulfur concrete and rubber were used for producing functionally graded materials (fgm). the physical and mechanical properties of sulfur concrete and rubber were changed continuously across the thickness. on one side, there was just rubber and, on the other, there was pure sulfur; the properties of each substance were moved to reach another. this kind of material was cons...

Journal: :journal of ultrafine grained and nanostructured materials 2014
mona maddah mohammad rajabi seyed mahmood rabiee

storage of hydrogen is one of the key challenges in developing hydrogen economy. magnesium hydride (mgh2) is an attractive candidate for solid-state hydrogen storage for on-board applications. in this study, 10 wt.% zrb2 was co-milled with magnesium hydride at different milling times to produce nanocrystalline composite powder. the effect of milling time and additive on the hydrogen desorption ...

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