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Materials Science-Poland
Volume 34 (2016): Issue 4 (December 2016)
Open Access
Influence of controlled deposition rate on mechanical properties of sputtered Ti thin films for MEMS application
S. Venkatesan
S. Venkatesan
and
M. Ramu
M. Ramu
| Nov 19, 2016
Materials Science-Poland
Volume 34 (2016): Issue 4 (December 2016)
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Published Online:
Nov 19, 2016
Page range:
735 - 740
Received:
Dec 14, 2015
Accepted:
Aug 29, 2016
DOI:
https://doi.org/10.1515/msp-2016-0099
Keywords
titanium
,
thin films
,
sputtering
,
hardness
,
MEMS
© Wroclaw University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Cross-sectional images of film thickness: (a) 45 μm, (b) 61 μm, (c) 82 μm, and (d) 154 μm of AA 2024 samples obtained at different deposition times.
SEM images of AA 2024 substrates coated with Ti thin films at different deposition times: (a) 180 s, (b) 300 s, (c) 420 s, and (d) 900 s.
EDX analysis of AA 2024 sample coated by Ti thin films at different deposition times: (a) 180 s, (b) 300 s, (c) 420 s, and (d) 900 s.
Effect of film thickness on hardness.
Scratches on titanium coated AA 2024 samples.
Effect of film thickness on scratch caused by the applied load (N).
A lattice pattern with six lines in each direction made on titanium coated AA 2024 sample (cross hatch test).
Effect of film thickness on surface roughness.
XRD pattern of Ti film deposited on AA 2024, sample S4 obtained at deposition time of 900 s at substrate temperature of 673 K.
Film thickness of samples S0, S1, S2, S3 and S4 for different deposition times and temperatures.
Sample
Deposition time [s]
Temperature [K]
Film thickness [μm]
S0 (uncoated sample)
–
–
–
S1
180
373
45
S2
300
473
60
S3
420
573
86
S4
900
673
153