Plasma nitration of the surface using high energy nitrogen ions produced in the plasma focus device

In this research, the effect of nitrogen ion radiation on the surface properties and structure of titanium metal was investigated. For this purpose, titanium samples were subjected to 2.7 kJ focal plasma device with nitrogen ions emitted from it in 5, 10 and 20 shots of the plasma device. The focus was irradiated. SEM, EDX and XRD analyzes were taken from titanium samples before and after irradiation. The results of SEM show that with the irradiation of ions on the surface of titanium, rough blisters are created on the surface of the specimens; the density and size of these blisters increase with the number of shots. Also, on the surface of the irradiated samples, sputtered areas were observed, owing to the increase in the temperature of the titanium surface by the impact of high-energy nitrogen ions. The X-ray diffraction results showed that with the irradiation of nitrogen ions onto titanium, the diffraction pattern has undergone changes in the peak locations; the peaks shifted to smaller angles, due to the stress and strains created in the surface layers as a result of high heat transfer to titanium during the irradiation of nitrogen ions. In addition, the irradiation of nitrogen ions on titanium caused a decrease in the height of the peaks. The results obtained from EDX also revealed that by irradiating nitrogen ions on the titanium, a small amount of copper has been deposited on the titanium surface due to evaporation from the anode head of the focal plasma device.