Ion beam mixing of CuAu and CuW systems

Interface enabled defects reduction in helium ion irradiated Cu/V nanolayers

“…Cu/V system has a positive heat of mixing, $5 kJ/mol [62], hence a chemically driven demixing process may have occurred simultaneously during irradiation (collision cascades). Similar phenomena have been observed in several other immiscible systems, such as Cu/W [57], Cu/Nb [48] and Hf/Ni [58]. The mutual solid solubility between Cu and V is very limited, approximately 2 at.% Cu in V matrix at 800°C [63].…”

“…Such energetic ion induced ballistic mixing can effectively induce the formation of new phases or even destroy layer interfaces in the miscible systems, such as Cu/Au [57], Hf/Ti [58], Fe/W [59] and Al/Nb [60]. Ion beam mixing has been studied in the past [53,61].…”

Temperature-dependent ion-beam mixing in amorphous SiOC/crystalline Fe composite

“…However, Au and Cu are well intermixed but W and Cu are barely mixed for the same irradiation conditions. [12] Hence, how different solids mix under ion irradiation can be used to examine their interface stability. [13,14] The present investigation was undertaken to examine the interface stability between crystalline Fe and amorphous silicon oxycarbide (SiOC).…”

Ion beam modification of metals: Compositional and microstructural changes

“…The data is also consistent with Dt/d)being proportional to (dE/dx)n/Rp, the ratio of the total nuclear energy loss of the mixing ion and its projected range. However, Wang et al [23,24] have studied the mixing behavior for collisionally similar systems, Cu-Au-Cu and Cu-W-Cu using the same structure for the samples for both systems. It was found that in the case of the Cu-Au system, peak broadening is an order of magnitude larger than that in the Cu-W system.…”