Si–C Shock activation of green mixtures for SHS production of Si–C composites Sergey Skiba, Gh. G. Pak XII International symposium on explosive production of new materials: science, technology, business and innovations (EPNM-2014 ) Cracow 2014

Si + C = SiC+Q System Q, кДж/кgT ad, К, Ti + B Ti + 3Si Ti + C Tа + C Si + C Methods of increase reactionary ability of Si-C system SHS in additional electric field SHS systems Si-C in the environment of nitrogen Chemical activation of SHS process Mechanical activation of initial mix SHS with preliminary heating of a reactionary layer Heat and combustion temperature for some SHS sytems Increase of reaction ability

1 –electrical detonator; 2 – charge of ES; 3 – plate-piston; 4 – activated powder; 5 – container of conservation; 6 – plate-basic; 7 - ground; 8 –elements for fixation weld gap. Parameters 1234 Тhickness of plates- foundation, мм 12 Height of ES, мм Height weld gap, мм Detonation velosity, м/s 3600 Percussion velosityдарения, м/s Share of the reflected wave, % 20 Progress of SHS process --++ Shock-wave activation

Before activation Microstructure of Si-C powder After activation

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