TY JOUR TI Study of ferromagnetic nanoparticles effect on tribotechnical lubricating characteristics KW ferromagnetic nanoparticles KW chemical condensation KW magnetite KW lubricant KW friction KW wear KW antiwear and antiwelding properties JO Vestnik of Don State Technical University AU Zadoshenko , E.. AU Burlakova , V.. PY 2015 IS 15 PB Don state technical University