Title :
Processes in bulk nano-TiB2-Cu composites under electric erosion
Author :
Dudina, D.V. ; Kwon, Y.-S. ; Kim, J.S. ; Lomovsky, O.I. ; Korchagin, M.A. ; Mali, V.I.
Author_Institution :
Inst. of Solid State Chem. & Mechanochemistry, Acad. of Sci., Novosibirsk, Russia
fDate :
26 June-3 July 2004
Abstract :
TiB2-Cu nanocomposite materials were found to exhibit essentially new path of degradation under electric erosion. Porous TiB2-enriched layer was formed on the surface and no copper melt was observed to squeeze out. Weight losses of nanocomposite material were 10 times lower compared to pure copper and arc spot size was about an order of magnitude increased. It is assumed that this particular behavior is caused by the high content of nanoparticulate inclusions and increased number of electron emission centers in nanocomposite material.
Keywords :
boron compounds; electron emission; inclusions; nanocomposites; nanoparticles; titanium compounds; wear; TiB2-Cu; arc spot size; bulk nanocomposites; electric erosion; electron emission centers; nanoparticulate inclusions; pure copper; Acoustic waves; Arc discharges; Composite materials; Conducting materials; Copper; Degradation; Electric resistance; Electrodes; Nanostructured materials; Temperature;
Conference_Titel :
Science and Technology, 2004. KORUS 2004. Proceedings. The 8th Russian-Korean International Symposium on
Print_ISBN :
0-7803-8383-4
DOI :
10.1109/KORUS.2004.1555690
