Science and Technology of Energetic Materials

Vol.66, No.4 (2005)Special Issue for ISEM 2005


Characteristics of the surface coating layer obtained by shock compaction and reaction synthesis through underwater shock compression
Kazuyuki Hokamoto, Sang-Hoon Lee, Jung-Suk Lee, Shigeru Tanaka, Akihisa Mori, Ryuichi Tomoshige, and Masahiro Fujita


The possibility for making thin coating layer through shock compaction and reaction synthesis from some mixed elemental powders is discussed, and the microstructure is characterized in the present investigation. Underwater shock wave in the order of 1-15 GPa derived from the detonation of an explosive was employed for the reaction. Mg plus Si to form Mg2Si and Ti plus Si to form Ti5Si3 were selected as coating materials. After shock compression, the compacted layer was successfully recovered without voids and cracks. Partial or no reaction was observed in the coating layer after shock compaction, and the followed heat treatment made possible to form reacted intermetallic compound in the case of synthesizing Ti5Si3.

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Shock compaction, Shock synthesis, Coating, Underwater shock wave

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