TY JOUR TI OVERVIEW OF WAYS TO INCREASE THE THERMAL EFFICIENCY OF PLASMA TORCHES FOR PLASMA COATING PROCESSES KW ELECTRIC ARC PLASMA TORCH KW THERMAL EFFICIENCY KW COMBINED PLASMA TORCH KW MICROPLASMA TORCH KW MULTI-INPUT PLASMA TORCH KW INTERELECTRODE INSERTS JO Voronezh Scientific-Technical Bulletin AU Kadyrmetov, A.M. AU Drozdov, I.G. AU Suhochev, G.A. AU Smol'yannikova, E.G. AU Popov, D.A. AU Pustovalov, A.S. AU Popov, P.N. PY 2025 IS 4 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov