Browsing Research Units by Title
Now showing items 2686-2705 of 4822
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Microstructural, mechanical and corrosion behaviour of Al–Si alloy reinforced with SiC metal matrix composite
( SAGE Publications Ltd , 2019 , Article)The aim of the present study is to investigate the effect of Si and SiC addition on the microstructure, mechanical, and corrosion properties of Al matrix-based composites. Al–Si (2 wt% fixed) alloy reinforced SiC composites ... -
Microstructural, tribological and compression behaviour of Copper matrix reinforced with Graphite-SiC hybrid composites
( Elsevier Ltd , 2020 , Article)Metal Matrix Composites (MMCs) are generating a wide and varied range of interest in the recently developed materials because of their high applicability in the industries. Copper matrix composites have rich properties ... -
Microstructure and compressive behavior of Al-Y2O3 nanocomposites prepared by microwave-assisted mechanical alloying
( MDPI AG , 2019 , Article)In this study, Al–Y2O3 nanocomposites were synthesized via mechanical alloying and microwave-assisted sintering. The effect of different levels of yttrium oxide on the microstructural and mechanical properties of the Al–Y2O3 ... -
Microstructure and mechanical behavior of cementitious composites with multi-scale additives
( Techno Press , 2021 , Article)This paper studies the effect of using multi-scale reinforcement additives on mechanical strengths, damage performance, microstructure, and water absorption of cementitious composites. Small dosages of carbon nanotubes ... -
Microstructure and mechanical behavior of hot extruded aluminum/tin-bismuth composites produced by powder metallurgy
( MDPI AG , 2020 , Article)In this study, Al-BiSn composites were synthesized by a combination of microwave sintering and hot extrusion processes. The structural, morphological, mechanical, and thermal properties were investigated to elucidate the ... -
Microstructure and Mechanical Behavior of Microwave Sintered Cu50Ti50 Amorphous Alloy Reinforced Al Metal Matrix Composites
( Minerals, Metals and Materials Society , 2018 , Article)In the present work, Al metal matrix composites reinforced with Cu-based (Cu50Ti50) amorphous alloy particles synthesized by ball milling followed by a microwave sintering process were studied. The amorphous powders of ... -
Microstructure and mechanical properties of aluminum matrix composites with bimodal-sized hybrid NbC-B4C reinforcements
( Elsevier , 2022 , Article)Aluminum (Al) is an earth-abundant metal recognized with superior properties for vital applications in the aerospace and transportation industries. Structural components of Al exhibit poor performance due to its inherent ... -
Microstructure evolution and mechanical properties of twinned AZ31 alloy plates at lower elevated temperature
( Elsevier Ltd , 2014 , Article)The AZ31 alloy plates were pre-rolled at room temperature along the transverse direction to introduce extension twinning. The effect of pre-existing twins on the mechanical properties of AZ31 alloy plates at lower elevated ... -
Microstructure, wear and corrosion characteristics of Cu matrix reinforced SiC–graphite hybrid composites
( SAGE Publications Ltd , 2019 , Article)The aim of the present study is to investigate the effect of SiC-graphite reinforcement on the properties of pure copper. Copper matrix composites with SiC-graphite reinforcement (0, 2.5,5, 7.5 and 10 wt.%) were prepared ... -
Microton irradiation induced tuning of dielectric properties of nano ZnO-natural rubber disks
( Springer Verlag , 2017 , Article)The effect of electron beam irradiation of dielectric and conductivity properties of nano ZnO-natural rubber (NR) disks was investigated here. It is revealed that electric properties such as AC conductivity, dielectric ... -
Microtron Irradiation Induced Tuning of Band Gap and Photoresponse of Al-ZnO Thin Films Synthesized by mSILAR
( Springer New York LLC , 2016 , Article)Al-doped polycrystalline nano ZnO (Al-ZnO) thin films with different doping concentrations were successfully prepared by the microwave-assisted successive ionic layer adsorption and reaction (mSILAR) technique. The structural ... -
Microwave rapid sintering of al-metal matrix composites: A review on the effect of reinforcements, microstructure and mechanical properties
( MDPI AG , 2016 , Article Review)Aluminum metal matrix composites (AMMCs) are light-weight materials having wide-spread use in the automobile and aerospace industries due to their attractive physical and mechanical properties. The promising mechanical ... -
Microwave-assisted conversion of palm kernel shell biomass waste to photoluminescent carbon dots
( scientific reports , 2020 , Article)In the present work, palm kernel shell (PKS) biomass waste has been used as a low-cost and easily available precursor to prepare carbon dots (CDs) via microwave irradiation method. The impacts of the reacting medium: water ... -
Migrant Domestic Workers and Gulf Families: A Case of Saudi Arabia
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2023 , Conference Paper)Domestic workers comprise 10% of Arabian Gulf immigration. Gulf families rely on domestic staff for children and elderly care. National women's employment has increased Gulf households' demand for domestic workers. Saudi ... -
Migrant wives: dynamics of the empowerment process
( Taylor & Francis (Routledge) , 2018 , Article)An increasing number of male migrants are taking part in intra- and inter-regional migration in Asia, leaving their wives behind at home. Their wives, whom we call emigrant wives, often adapt to new roles and responsibilities ... -
Migrant Worker Well-Being and Its Determinants: The Case of Qatar
( Springer , 2020 , Article)Despite significant media attention and criticism, we know very little about the living and working conditions of low-income migrants in the Arab Gulf states, how migrants themselves view these conditions, or what factors ... -
Migrant Workers Impact on Social life of the Gulf Countries During COVID 19
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2020 , Conference Paper)Six GCC countries are the home of the global migrant workers. As at present estimated that about 56 million population of collectively of GCC among 30 million populations are not nationals.Huge migrants population and ... -
Migrants, Refugees, and Displaced Persons in the Middle East and North Africa: An approach from the Global South.
( Scalabriniano Center for Migratory Studies , 2021 , Article)This article aims to introduce aspects involved in studies on migratory dynamics in the Middle East and North Africa (MENA). In this sense, we present some historical dynamics for defining the territories of what is ... -
Migration and Social Change in the Gulf: A Comparative Study in the Six Gulf States
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2020 , Conference Paper)Migration and flow of people across the world is rapidly growing today. It was estimated that there were about 272 million migrants globally in 2019 which roughly constitutes of 3.2% of the world population. The Gulf ... -
Migration Policies across the GCC: Challenges in Reforming the Kafala
( Gulf Research Center Cambridge , 2018 , Book chapter)Much of the debate over immigration policy in the states of the Gulf Cooperation Council (Bahrain, United Arab Emirates, Kingdom of Saudi Arabia, Kuwait, Oman, and Qatar) revolves around the kafala, or sponsorship system. In ...