The demands of industry for creating new functional materials with predetermined properties have stimulated an increasing interest in the investigation of processes occurring in plasma jets of complex chemical composition (homogeneous and heterogeneous) as well as their interaction with hard surfaces. This Proceedings volume contains contributions from leading international specialists on plasma science and technology which were presented at the 2nd International Workshop ''Plasma Jets in the Development in of New Materials Technology'', 3--9 September 1990, Frunze (USSR). The scope of the workshop incorporated the following aspects: modelling of the processes of momentum heat and mass transfer in homogeneous and heterogeneous plasma jets as well as interaction between the particles and the base; diagnostics of the parameters of gas and disperse phases in plasma flows; plasma-spraying processes investigations; processes of treatment and production of materials, including powder materials.