Ceramic Nano-particle/Substrate Interface Bonding Formation Derived from Dynamic Mechanical Force at Room Temperature: HRTEM Examination

Yao, Hai-Long, Yang, Guan-Jun, Fan, Sheng-Qiang, Li, Cheng-Xin and Li, Chang-Jiu (2015) Ceramic Nano-particle/Substrate Interface Bonding Formation Derived from Dynamic Mechanical Force at Room Temperature: HRTEM Examination. Journal of Thermal Spray Technology, 24 4: 720-728. doi:10.1007/s11666-015-0226-2

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Author Yao, Hai-Long
Yang, Guan-Jun
Fan, Sheng-Qiang
Li, Cheng-Xin
Li, Chang-Jiu
Title Ceramic Nano-particle/Substrate Interface Bonding Formation Derived from Dynamic Mechanical Force at Room Temperature: HRTEM Examination
Journal name Journal of Thermal Spray Technology   Check publisher's open access policy
ISSN 1059-9630
1544-1016
Publication date 2015-02-20
Year available 2015
Sub-type Article (original research)
DOI 10.1007/s11666-015-0226-2
Open Access Status DOI
Volume 24
Issue 4
Start page 720
End page 728
Total pages 9
Place of publication New York, United States
Publisher Springer New York LLC
Collection year 2016
Language eng
Formatted abstract
The bonding of TiO2 nano-particle/substrate is a critical factor influencing the performance of dye-sensitized solar cells. In order to reveal the bonding properties at TiO2 nano-particle/substrate interface, high-resolution transmission electron microscopy (HRTEM) analysis was adopted to TiO2 coatings prepared by three different approaches. In the HRTEM analysis, the effective bonding mode is allowed to distinguish from the false image overlapping. Results show that large areas of effective bonding between nano-TiO2 particles and the substrate surface formed in the room temperature cold sprayed coating and mechanically pressed coating, while only limited interface areas with the effective bonding were observed in the coating deposited by non-pressed method. These results confirm that both high impact pressure during the room temperature cold spraying and mechanical pressure contribute to the bonding formation at the particle/substrate interface.
Keyword HRTEM
Interface
Pressure
Room temperature cold spraying
Titania
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Chemistry and Molecular Biosciences
 
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