Biomedical Engineering Reference
In-Depth Information
1
(f)
2
3
MEP 1 2 3
BE [eV]
530.535 531.637 532.835
FWHM
1.404 1.965 1.829
MPC
O
2
OH
H
2
O
61% 20% 19%
Fig. 9. Surface film composition measured by XPS of the treated CP Ti Grade 2 for 3 samples
(wires) after: (a, b) mechanical polishing MP, (c, d) electrochemical polishing EP,
(e, f) magnetoelectropolishing MEP; (a, c, e) spectra referred to titanium (Ti
0
, Ti
2+
, Ti
3+
, Ti
4+
),
(b, d, f) spectra referred to oxygen group (O
2
, OH
, H
2
O). Under description:
BE
- binding energy
FWHM
- an expression of the extent of a function, given by the difference between the
two extreme values of the independent variable at which the dependent variable is
equal to half of its maximum value
MPC
- most probably compound
Each of the presented plots in Fig. 9 has been connected with the underlying Table 3
revealing all important data, indicating the most probable compound (MPC) with the
relevant percentage in Ti surface film investigated.
Treatment
Ti
0
Ti
2+
Ti
3+
Ti
4+
MP
7%
9%
4%
80%
EP
5%
5%
8%
84%
MEP
7%
3%
6%
84%
Table 3. XPS data of the treated CP Ti Grade 2 for 3 samples (strips).
The most interesting spectra referred to titanium (Ti
0
, Ti
2+
, Ti
3+
, Ti
4+
), concerning Fig. 9 (a, c, e),
have been gathered and reported in Table 3. Visual presentation of the results is given in
