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A newly designed plasma electrode-type plasma spray gun, which can generate a high temperature and clean plasma jet and inject various materials into the center of the arc column, has been developed. In order to demonstrate the application feasibility of this new-type plasma spray gun for thermal plasma processing, the effects of powder loading on the stability and temperature of the plasma jet and...
The present research has been conducted aiming the study of mechanical characteristic improvement of Ti6Al4V alloy surface. The proposed process is based on an ion nitriding method performed in a low intensity plasma jet reactor. An objective of the study is to enlarge the applicability of this alloy in several industrial areas, mainly foccusing the biomedical applications. The reactor of low intensity...
A gas dynamical model is proposed for erosion jets from arc electrodes. The calculations of this model are in agreement with experiments on pulsed arcs made by Hermoch in the 1950s.
A chromatic detection system was designed and tested for monitoring the optical emission from a d.c. arc plasma jet with and without powder particles heated in the plasma. The chromaticity parameters measured are correlated with the arc current, gas flow rate and substrate position.
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