Serkan Özel and Hüseyin Turhan (2010). The Microstructure and Hardness Properties of ZrO2+Y2O3/Al2O3 Layers Coated by Using Plasma Spray Process on Al Bronze Surface. Practical Metallography: Vol. 47, No. 10, pp. 560-570. doi: 10.3139/147.110095 © Carl Hanser Verlag GmbH & Co. KG ISSN 0032-678X