We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Katkılı La<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> Esaslı Seramiklerin Termal Bariyer Kaplama Olarak Kaplanabilirliğinin Araştırılması.
- Authors
GÖK, Mustafa Güven; CİHAN, Ömer; KARABAŞ, Muhammet; TEMİZER, İlker
- Abstract
Nowadays, higher performance expectations from turbines and internal combustion engines, rapid extinction of fossil fuels, global warming and increasingly tighter emission standards worldwide are the biggest problem of engine manufacturers. The most important solution approach for this problem is the coating of metallic parts of turbine blades and/or combustion chamber with a thermal barrier coating material having low thermal conductivity. This solution leads to significant improvements in engine performance and efficiency. On the other hand, rare element doped new generation ceramic thermal barrier coating material materials having low thermal conductivity have attracted considerable attention in recent years. In this study, the metallic bond layers have coated on the metallic substrates by using high-speed oxy-fuel spraying method and then La2Zr2O7 based ceramic top layers have coated as double layered by using atmospheric plasma spraying method. In the scanning electron microscope analyses, it was found that the thicknesses of the ceramic top layers ranging from 375 to 480 μm and the porosity values were among 10.2 and 12.5%. Moreover, the interfaces between the layers were continuous and there was no metallographically problem. Therefore, it is understood that, La2Zr2O7 based ceramics were successfully coated. In addition, X-ray diffraction analysis revealed that there was no phase transformation or chemical degradation after atmospheric plasma spray process.
- Subjects
METALLIC bonds; PLASMA spraying; METAL coating; THERMAL barrier coatings; INTERNAL combustion engines; COMBUSTION chambers; TURBOCHARGERS; SCANNING electron microscopes
- Publication
Journal of the Institute of Science & Technology / Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020, Vol 10, Issue 1, p456
- ISSN
2146-0574
- Publication type
Article
- DOI
10.21597/jist.568929