CHARACTERISTICS AND ELECTRODE EROSION RATES OF A DC PLASMA TORCH OPERATING WITH TICL4 PLASMA GAS

Authors
GAO Y MUNZ RJ TSANTRIZOS PG
Citation
Y. Gao et al., CHARACTERISTICS AND ELECTRODE EROSION RATES OF A DC PLASMA TORCH OPERATING WITH TICL4 PLASMA GAS, Plasma chemistry and plasma processing, 14(1), 1994, pp. 73-85
Citations number
5
Categorie Soggetti
Physics, Applied","Engineering, Chemical","Phsycs, Fluid & Plasmas
Journal title
Plasma chemistry and plasma processing → ACNP
ISSN journal
02724324
Volume
14
Issue
1
Year of publication
1994
Pages
73 - 85
Database
ISI
SICI code
0272-4324(1994)14:1<73:CAEERO>2.0.ZU;2-R
Abstract
A stable TiCl4 plasma was produced using a simplified d.c. torch. The arc was struck between two concentric ring electrodes, 4 min apart, an d rotated using a magnetic coil. The electrode material was a new TaC composite. The arc was operated at 100 A for up to 1 h using plasma ga s containing 0-30% TiCl4. The voltage was 24-60 V, depending on the Ti Cl4 concentration. The electrode erosion rate was of the order of 20 m ug/C. It is shown that the erosion rate is a function of the aerodynam ic drag of the arc column.