پديد آورنده :
صادقيان بروجني، سرور
عنوان :
اعمال و مشخصه يابي پوشش هاي چند لايه ي Al2O3-SiO2-YSZ بر روي زير لايه ي آلومينيوم
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مواد
صفحه شمار :
چهارده،[71]ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
رحمت اله عمادي، حميدرضا سليمي جزي
توصيفگر ها :
پوشش هاي سراميكي , فرايند سل-ژل , آندايزينگ سخت , سيليكا , آلومينا , زير كونياي پايدارشده با ايتريا
استاد داور :
مهدي صالحي، محمدرضا سائري
تاريخ ورود اطلاعات :
1395/08/16
چكيده انگليسي :
Deposition and characterization of multilayers Al2O3 SiO2 YSZ coatings on aluminium substrates Soroor Sadeghian Boroujeni s sadeghian@ma iut ac ir Date of submission June 5 2016 Department of Materials Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Persian Supervisors H R Salimijazi Associate Professor hrjazi@cc iut ac ir R Emadi Associate Professor remadi@cc iut ac ir AbstractIn this study the anodized Aluminum 1100 was selected as the substrate The substrateswere coated with some multi layer material with different proportion of the Silica Alumina Zirconia The coating process was carried out by the Sol gel coating process Thethickness morphology and the wearing properties of the obtained coatings were studied atthe room temperature Investigating the cross section of the obtained coatings revealedthat the thickness of the produced Aluminum Oxide layer in the hard anodizing processwas 22 m and the thickness of the coated Sol gel was about 4 m Wear test results shownthat the wear resistance was improved considerably through the hard anodizing Silica Alumina Sol gel coating and adding the YSZ powder The friction coefficient of thesubstrate decreased from 2 04 to 0 68 by the anodizing and coating processes It is worthmentioning that the friction coefficient of the Silica Alumina coating is 0 74 and addingYSZ to the Silica Alumina had no significant effect on decreasing the friction coefficient However adding more YSZ results in more bleach and uniform coating surface This is animportant issue in the kitchen utensils In addition the results of the wearing tests showonthat all coatings improve the wearing properties Moreover the highest value of thewearing resistance index was obtained by Silica Alumina with20 Zirconia wear rate ofthe substrate was measured about 36 g m while hard anodizing reduced the wearing rate to 7 3 g m Keywords Ceramic coatings Sol gel process Hard anodizing Silica Alumina YSZ
استاد راهنما :
رحمت اله عمادي، حميدرضا سليمي جزي
استاد داور :
مهدي صالحي، محمدرضا سائري
