Low-Temperature Anelastic Property of Nanocrystalline Ag Fabricated by Gas Deposition Method

AUTOR(ES)

Xi, Terigele, Suzuki, Ryoma, Tanimoto, Hisanori

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

04/06/2018

RESUMO

It was reported that the internal friction (Q-1) of nanocrystalline (n-) Au and n-Cu showed a rapid increase linearly with temperature above ~200 K. Since the rapid increase in Q-1 decreased with the progress in the grain growth, it was suggested that the anelasticity of grain boundaries in n-Au and n-Cu was thermally activated above ~200 K. In order to pursue the intrinsic behavior of the grain boundaries in n-metals, the internal friction of n-Ag was measured and the result was compared with those of n-Au and n-Cu. Similar to n-Au and n-Cu, Q-1 of n-Ag was also showed the increase linearly with temperature above ~200 K. However, the onset temperature for the linear increase in Q-1 of n-Ag was slight lower than those of n-Au and n-Cu and it can be attributed to the lower activation energy of the grain boundary self-diffusion in Ag.

Documentos Relacionados

• Low-temperature stability of viruses in sludges.
• Improved Cell Dispersal Method by Low-Temperature Incubation of Tissue in a Trypsin-Citrate Solution
• Low-Temperature Incubation Using a Water Supply
• Low-Temperature Growth of Shewanella oneidensis MR-1
• Disinfection of heat-sensitive material by low-temperature steam and formaldehyde