𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Indentation properties of plasma sprayed Al2O3–13% TiO2 nanocoatings

✍ Scribed by J. Rodriguez; A. Rico; E. Otero; W.M. Rainforth

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
919 KB
Volume
57
Category
Article
ISSN
1359-6454

No coin nor oath required. For personal study only.

✦ Synopsis

Young's modulus and hardness were determined by depth sensing indentation in plasma sprayed Al 2 O 3 -13% TiO 2 nanocoatings. Results were compared to conventional coatings and the relevance of the nanostructure was analyzed. An indentation size effect was observed. Data provided by indentation tests at different maximum loads were used to estimate size-independent hardness and elastic modulus. Enhanced properties were observed in the nanostructured coating compared to the conventional one. Partially melted zones in the nanocoating, which act as reinforcements in the ceramic matrix composite, are likely responsible for the enhancement.

📜 SIMILAR VOLUMES

Microstructure characteristics of Al2O3–
Microstructure characteristics of Al2O3–13 wt.% TiO2 coating plasma spray deposited with nanocrystalline powders
✍ Jianxin Zhang; Jining He; Yanchun Dong; Xiangzhi Li; Dianran Yan 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 905 KB

Nanostructured Al 2 O 3 -13 wt.% TiO 2 coating was fabricated by plasma spray with nanocrystalline powders and the microstructures of the feedstock and the coating were characterized by means of XRD, SEM and TEM. It was found that three forms of substructure existed in the coating: one evolving from

Al2O3–13% weight TiO2 deposit profiles a
Al2O3–13% weight TiO2 deposit profiles as a function of the atmospheric plasma spraying processing parameters
✍ Sofiane Guessasma; Florin-Iuliu Trifa; Ghislain Montavon; Christian Coddet 📂 Article 📅 2004 🏛 Elsevier Science ⚖ 497 KB

Deposit profiles of alumina-titania powder are studied as a function of some atmospheric plasma spraying parameters. Design of experiments was applied to select the prevailing parameters taking into account their roles in the plasma generation and in the powder injection. Experimental results permit