Surface modification method for medical titanium metal material
A surface modification, titanium metal technology, applied in metal material coating process, solid diffusion coating, vacuum evaporation coating and other directions, can solve the problems of poor antibacterial, mechanical properties and corrosion resistance, and achieve good antibacterial ability, improved antibacterial properties, increased hardness and corrosion resistance
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Embodiment 1
[0034] After the pure titanium sheet of 10mm×10mm×1mm is polished, it is ultrasonically cleaned with acetone, alcohol and deionized water in sequence, each time for 10 minutes. Using plasma immersion ion implantation technology, silver and nitrogen were implanted into the titanium substrate in the way of first silver and then nitrogen (PIII-Ag-N). The specific process parameters are shown in Table 1:
[0035] Table 1 silver / nitrogen binary ion implantation parameters
[0036] Injection voltage (kV)
30
Pulse width (μs)
450
Injection time (h)
Silver 1h / Nitrogen 1h
Background vacuum (Pa)
3.6×10 -3
N 2 Flow (sccm)
25
Frequency (Hz)
7
[0037] figure 1 It is a scanning electron microscope morphology comparison diagram of the titanium metal material obtained through the modification treatment of this embodiment and the pure titanium surface. In the figure: a is pure titanium, and b is the titanium metal mater...
Embodiment 2
[0040] After the pure titanium sheet of 10mm×10mm×1mm is polished, it is ultrasonically cleaned with acetone, alcohol and deionized water in sequence, each time for 10 minutes. Using plasma immersion ion implantation technology, silver and nitrogen are implanted into the titanium substrate in the form of nitrogen first and then silver (PIII-N-Ag). The specific process parameters are shown in Table 2:
[0041] Table 2 silver / nitrogen binary ion implantation parameters
[0042] Injection voltage (kV)
30
Pulse width (μs)
450
Injection time (h)
Silver 1h / Nitrogen 1h
Background vacuum (Pa)
3.6×10 -3
N 2 Flow (sccm)
25
Frequency (Hz)
7
[0043] Figure 4 It is a scanning electron microscope morphology comparison diagram of the titanium metal material obtained through the modification treatment of this embodiment and the pure titanium surface. In the figure: a is pure titanium, and b is the titanium metal materi...
Embodiment 3
[0046] After the pure titanium sheet of 10mm×10mm×1mm is polished, it is ultrasonically cleaned with acetone, alcohol and deionized water in sequence, each time for 10 minutes. Using plasma immersion ion implantation technology, silver and nitrogen were implanted into the titanium substrate in the form of co-injection of silver and nitrogen (PIII-Ag+N). The specific process parameters are shown in Table 3:
[0047] Table 3 silver / nitrogen binary ion implantation parameters
[0048] Injection voltage (kV)
30
Pulse width (μs)
450
Injection time (h)
(Silver+Nitrogen) 1h
Background vacuum (Pa)
3.6×10 -3
N 2 Flow (sccm)
25
Frequency (Hz)
7
[0049] Figure 7 It is a scanning electron microscope morphology comparison diagram of the titanium metal material obtained through the modification treatment of this embodiment and the pure titanium surface. In the figure: a is pure titanium, and b is the titanium metal m...
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