Mechanical and tribological behavior of sol-gel TiO2-CdO films measured at the microscale levels

被引:5
|
作者
Javier Flores-Ruiz, Francisco [1 ]
Janani Diliegros-Godines, Carolina [2 ]
Alejandro Hernandez-Garcia, F. [3 ]
Castanedo-Perez, Rebeca [3 ]
Torres-Delgado, Gerardo [3 ]
Broitman, Esteban [4 ]
机构
[1] Benemerita Univ Autonoma Puebla, CONACYT Inst Fis, Apdo Post J-48, Puebla 72570, Pue, Mexico
[2] Benemerita Univ Autonoma Puebla, Inst Fis, Apdo Post J 48, Puebla 72570, Pue, Mexico
[3] IPN, Unidad Queretaro Lib Norponiente 2000, Ctr Invest & Estudios Avanzados, Queretaro 76230, Qro, Mexico
[4] Linkoping Univ, Thin Film Phys Div, IFM, S-58183 Linkoping, Sweden
关键词
CdTiO3; Sol-gel; Mechanical properties; Tribological behavior; Scanning probe microscopy; THIN-FILMS; COATINGS; TEMPERATURE; INDENTATION; DEPOSITION; HARDNESS; CONTACT;
D O I
10.1007/s10971-017-4346-7
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In this work, we present a mechanical and tribological study at the microscale of sol-gel TiO2-CdO films, which are used in photocatalytic applications. The films were deposited as a good-quality polycrystalline material with majority of CdO or CdTiO3 phases depending on their Ti/Cd concentration ratios. Films with the majority of CdTiO3 phase presented the highest hardness and lowest plastic deformation during the indentation tests. The evolution of wear, friction coefficient, and roughness on the films was quantitatively studied by multiple-passes measurements on a depth-sensing instrumented indentation system. These measurements allowed us to observe the films' wear mechanisms and correlate them with their microstructure and mechanical properties. To compare the crystal structure, mechanical properties and tribological behavior of these films, we also analyzed sol-gel CdO and TiO2 films deposited under similar conditions.
引用
收藏
页码:682 / 691
页数:10
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