high frequency induction plasmatron
TRANSCRIPT
High-frequency induction plasmatron
Rydkin Maxim
“Thermal physics”
master of science course, first year
Introduction
Liquid
Solid
Gas
Plasma
Social image of matter states
Plasma = partially or fully ionized gas, which shows collective behavior
Definitions
Plasma = partially or fully ionized gas, which shows collective behavior
Plasmatron = plasma generator
Definitions
Plasmatron classification
Electrodeless plasmaElectrode plasma
Technical (low-temperature) plasma
Plasmatron classification
Electrodeless plasmaElectrode plasma
Technical (low-temperature) plasma
gas
2nd electrode1st electrode
arc
Plasmatron classification
Electrodeless plasmaElectrode plasma
Technical (low-temperature) plasma
gas
2nd electrode1st electrode
arc
- Higher durability
No electrode erosion
- Pure plasma
Plasmatron classification
Electrodeless plasma
ICP(inductively coupled plasma)
CCP(capacitively …)
Other(laser …)
Plasmatron classification
HF SHF
Temperature(1 atm.)
Current frequency
7000 – 11000 K
ICP(inductively coupled plasma)
60 kHz – 60 MHz 900 MHz – 5 GHz
inductor
HFgenerator
HF induction plasmatron (scheme)
Electromagnetic transformations
Electromagnetic transformations
Non-flow stationary discharge (energy balance)
Foucaultcurrents
E/m energy
Non-flow stationary discharge (energy balance)
Foucaultcurrents
E/m energy
Joule heat
Non-flow stationary discharge (energy balance)
Foucaultcurrents
E/m energy
Joule heat
Ionization energy(discharge maintaining)
E/m energy
Joule heat
Ionization energy(discharge maintaining)
Heat transfer(mainly, through walls)
Non-flow stationary discharge (energy balance)
Foucaultcurrents
inductor
HFgenerator
Non-flow stationary discharge
plasma-forming gas
inductor
HFgenerator
Stationary discharge in flow
plasma jet
plasma-forming gas
chamberinductor
HFgenerator
plasma jet
HF induction plasmatron (scheme)
Water-cooled quartz chamber
Chamber types
Water-cooled quartz chamber
Metal slotted chamber
Chamber types
Water-cooled quartz chamber
Porous quartz/ceramic chamber
Metal slotted chamber
Chamber types
Induction plasmatron (scheme)
plasma-forming gas
chamberinductor
HFgenerator
gas stabilization(shielding gas)
plasma jet
Gas stabilization
Axial Vortex
Gas stabilization
Axial Vortex
Applications
Plasma tool Welding
Cutting
Deposition of refractorymaterials (W, Mo, …)
Boring
Surface treatment
Applications
Plasma tool
Reduction of purematerials from theiroxides and chlorides
(Ta, Ti, Ge, U…)
Plasmachemicalreactor
TiO2 production
Spheroidizing
Applications
Plasma tool
Plasmachemicalreactor
Metallurgicalplasmatrons
Metal refining
Dispersed materialsproduction
Monocrystal materialsproduction
Applications
Plasma tool
Plasmachemicalreactor
Metallurgicalplasmatrons
Plasmaburner (torch)
Incineration of garbage
Applications
Plasma tool
Plasmachemicalreactor
Metallurgicalplasmatrons
Plasmaburner (torch)
Plasmatronsfor R&D
Study of:- aerodynamics processes
- thermal physics processes
Spectral analysis(ICP spectroscopy)
Thanks for your attention!
Questions & answers session