Search Results - "Rossi, J.O."

Study of the Nonlinear Phenomena in Ceramic Dielectric Composite Used in Compact PFLs by Rossi, J.O., Rangel, E.G.L., Neto, L.P. Silva, Schamiloglu, E.

“…This paper presents a study for developing a new composite for compact pulse forming lines (PFLs) in linear applications using PZT ceramic dispersed in the…”
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The shock wave configuration used in nonlinear transmission lines to improve the voltage modulation depth by Silva Neto, L. P., Santos Junior, V. C., Rossi, J.O., Barroso, J. J., Schamiloglu, E., Rangel, E. G. L., Lima, G., Santos, L. F.

“…Nonlinear transmission lines (NLTLs) using varactor diodes can produce high-frequency waves on the order of some tens of megahertz. They reach only low power…”
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Operation of a Gyromagnetic Line with Magnetic Axial Bias by Yamasaki, F.S., Rossi, J.O., Silva, L.C., Rangel, E.G.L., Schamiloglu, E.

“…A growing interest has been raising around the use of nonlinear transmission lines (NLTLs) for radiofrequency (RF) generation since recent results published…”
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Development of Tunable Ferroelectric Ceramic Capacitors by Aredes, R.G., Antonelli, E., Silva Neto, L.P., Rossi, J.O., Lima, G. N., Barroso, J. J., Rangel, E. G. L., Schamiloglu, E.

“…Ferroelectric perovskite ceramics with a high dielectric constant, low loss, high tunability, and high electric breakdown are ideal for Nonlinear Transmission…”
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A hard-tube pulser of 60 kV, 10 A for experiment and modeling in plasma immersion ion implantation by Rossi, J.O., Ueda, M., Barroso, J.J., Spassov, V.A.

“…This paper describes an experiment and modeling in plasma immersion ion implantation using a high-voltage pulsed power system. This consists of a high-voltage…”
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New possibilities of plasma immersion ion implantation (PIII) and deposition (PIII&D) in industrial components using metal tube fixtures by Ueda, M., Silva, A.R., Pillaca, E.J.D.M., Mariano, S.F.M., Rossi, J.O., Oliveira, R.M., Pichon, L., Reuther, H.

“…New possibilities of Plasma Immersion Ion Implantation (PIII) and deposition (PIII&D) for treating industrial components in the batch mode have been explored…”
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A Compact GNLTL Using Permanent Magnet Rings With Improved H-field Uniformity by Rossi, J.O., Yamasaki, F.S., Barroso, J.J., Teixeira, A.F., Greco, A.F.G., Rangel, E.G.L., Neto, L.P. Silva, Schamiloglu, E.

“…There has been a great interest in using compact gyromagnetic nonlinear transmission lines (GNLTLs) for applications in defense platforms, radars, and space as…”
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Improvements of plasma immersion ion implantation (PIII) and deposition (PIII&D) processing for materials surface modification by Ueda, M., Oliveira, R.M., Rossi, J.O., Mello, C.B., Rangel, Rita C.C., Vieira, M.S.

“…Plasma immersion ion implantation (PIII) process is a three dimensional surface modification method that is quite mature and well known to the surface…”
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RF Generation at 200 MHz Using a SiC Schottky Diode Lumped NLTL by Raimundi, L.R., Rossi, J.O, Rangel, E.G.L, Silva, L.C., Schamiloglu, E., Neto, L.P. Silva

“…The following topics are dealt with: pulse generators; pulsed power supplies; wide band gap semiconductors; discharges (electric); transformer windings; power…”
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A new high-temperature plasma immersion ion implantation system with electron heating by Oliveira, R.M., Gonçalves, J.A.N., Ueda, M., Rossi, J.O., Rizzo, P.N.

“…The temperature of the substrate has strong influence on the diffusion coefficient of nitrogen ions during plasma immersion ion implantation (PIII) performed…”
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Nonlinear Transmission Lines for High Power Microwave Applications - A Survey by Gaudet, J., Schamiloglu, E., Rossi, J.O., Buchenauer, C.J., Frost, C.

“…Nonlinear transmission lines (NLTLs) have been used successfully to produce high power microwave (HPM) oscillators over the past 20 years. The advantages of…”
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A 100 kV/200 A Blumlein Pulser for High-Energy Plasma Implantation by Rossi, J.O., Ueda, M.

“…A high-voltage pulsed power supply of 100 kV/200 A with output short pulses of the order of 1 mus (based on stacked coaxial Blumlein technology) was developed…”
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Short Repetitive Pulses of 50-75 kV Applied to Plasma Immersion Implantation of Aerospace Materials by Rossi, J.O., Ueda, M., Mello, C.B., Marcondes, A.R., Toth, A., da Silva, G., da Silva, G.

“…High-energy plasma immersion ion implantation (PIII) in the range of 50-100 keV is an interesting alternative of surface modification technique to more…”
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Modeling of Wound Coaxial Blumlein Pulsers by Rossi, J.O., Barroso, J.J., Ueda, M.

“…Blumlein pulsers are well-suited devices for high-voltage pulse generation in nanosecond and microsecond ranges. These generators have been used with great…”
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Secondary electron suppression in nitrogen plasma ion implantation using a low DC magnetic field by Ueda, M., Tan, I.H., Dallaqua, R.S., Rossi, J.O.

“…Experiments aiming at the reduction or even total suppression of secondary electrons during the plasma immersion ion implantation were carried out using a…”
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Surface improvements of industrial components treated by plasma immersion ion implantation (PIII): results and prospects by Ueda, M, Berni, L.A, Castro, R.M, Beloto, A.F, Abramof, E, Rossi, J.O, Barroso, J.J, Lepienski, C.M

“…The major drive for PIII research in recent years has been the widespread use of plasma-based ion implantation in industries aiming at attaining high…”
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Plasma Immersion Ion Implantation With Lithium Atoms by Oliveira, R.M., Ueda, M., Rossi, J.O., Diaz, B., Baba, K.

“…A new method was developed to produce lithium plasma for plasma immersion ion implantation. Initially, an argon glow discharge with operation pressure ranging…”
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A 4-kV/2-A/5-kHz Compact Modulator for Nitrogen Plasma Ion Implantation by Rossi, J.O., Barroso, J.J., Ueda, M., da Silva, G.

“…To treat stainless-steel surfaces by nitrogen plasma implantation, a solid-state compact modulator was devised, in which a 8.0-muF capacitor discharges through…”
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Enhancement of surface properties of SAE 1020 by chromium plasma immersion recoil implantation by Ueda, M., Mello, C.B., Beloto, A.F., Rossi, J.O., Reuther, H.

“…SAE 1020 steel is commonly used as concrete reinforcement and small machine parts, but despite its good mechanical properties, as ductility, hardness and wear…”
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Aluminum plasma immersion ion implantation in polymers by Ueda, M., Tan, I.H., Dallaqua, R.S., Rossi, J.O., Barroso, J.J., Tabacniks, M.H.

“…Atomic oxygen (AO) degradation of polymer-based materials is a serious concern in long life satellites or space stations orbiting low Earth orbit environment…”
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