DSpace Home
→
Browsing by Author

Browsing by Author "Avcı, Eşref"

Now showing items 1-9 of 9

Comparison of thermal stresses developed in Al2O3-SG, ZrO2-(12% Si+Al) and ZrO2-SG thermal barrier coating systems with NiAl, NiCrAlY and NiCoCrAlY interlayer materials subjected to thermal loading

Taymaz, İmdat; Mimaroğlu, Abdullah; Avcı, Eşref; Uçar, Vahdet; Gür, Mesut (ELSEVIER SCIENCE SA, 1999)

In this investigation, thermal and structural finite element analysis has been employed to analyse the level of stresses developed in Al2O3-spherical cast iron (SG), ZrO2-(12% Si + Al) and ZrO2-SG coatings subjected to ...
Effect of grit blasting of substrate on the corrosion behaviour of plasma-sprayed Al2O3 coatings

Demirkıran, Ayşe Şükran; Avcı, Eşref (ELSEVIER SCIENCE SA, 1999)

In this study, the corrosion behaviour of grit-blasted AISI 304L stainless steel substrates coated with Al2O3 was investigated in 1 N H2SO4 solution. Coatings were produced by employing a plasma-spray process. The phase ...
Effect of natural zeolite addition on sintering kinetics of porcelain bodies

Demirkıran, Ayşe Şükran; Artır, Recep; Avcı, Eşref (ELSEVIER SCIENCE SA, 2008)

The aim of this study was to investigate the effect of natural zeolite addition on the sintering kinetics. Clinoptilolite which is a type of natural zeolite was added partially or fully in replacement of quartz at selected ...
Effects of some parameters on corrosion behaviour of plasma-sprayed coatings

Avcı, Eşref; Şengil, İsmail Ayhan (ELSEVIER SCIENCE SA, 1997)

The corrosion behaviour of ceramics and cermet coatings on AISI 304L steel substrates was investigated in several aqueous solutions. Plasma spray process was employed on substrates with the deposition of ceramic and cermet ...
Electrical resistivity of porcelain bodies with natural zeolite addition

Demirkıran, Ayşe Şükran; Artır, Recep; Avcı, Eşref (ELSEVIER SCI LTD, 2010)

In this study, the effect of natural zeolite addition on the electrical properties of porcelain bodies was investigated. Clinoptilolite, which is a type of natural zeolite, was added partially or fully in replacement of ...
EMK-Messungen zur Bestimmung der Sauerstoffaktivitaet und der Sauerstofflöslichkeit in flüssigem Kupfer zwischen 1065 und 1350 C

Avcı, Eşref; Ostervvalı, Jörg (Sakarya Devlet Mühendislik ve Mimarlık Akademisi, 1981)

115O°C ile 1350°C sıcaklık aralığında sıvı bakır içindeki oksijenin çözünürlüğü ve oksijen aktivitesi Pt/Cr2O3/sıvı bakırda çözünmüş oksijen/stab. ZrO2/hava, Pt galvanik oksijen - konzentrasyon - zinciri yardımıyle tesbil ...
Evaluation of functionally gradient coatings produced by plasma-spray technique

Demirkıran, Ayşe Şükran; Avcı, Eşref (ELSEVIER SCIENCE SA, 1999)

The results showed that there are no certain transition lines between the bond layer, the cermet layer, and the ceramic layer. The SEM results indicated the presence of porosity, oxide, inclusion and unmelted particles. ...
Numerical analysis of fracture in ceramic coatings subjected to thermal loading

Mimaroğlu, Abdullah; Avcı, Eşref (ELSEVIER SCI LTD, 1996)

In this paper the general purpose finite element code ANSYS has been employed to analyse fracture in ceramic coatings subjected to thermal loading. An approach is developed in which hypothetical material properties have ...
Oxidation behaviour of functionally gradient coatings including different composition of cermets

Demirkıran, Ayşe Şükran; Avcı, Eşref (ELSEVIER SCIENCE SA, 2001)

Functionally gradient coatings are coating systems which are used to increase performances of high temperature components in the hot gas turbine section of gas turbine engines, diesel engines, in aerospace and aircraft ...