Size-dependent brittle-to-ductile transition in silica glass nanofibers

J Luo, J Wang, E Bitzek, JY Huang, H Zheng, L Tong… - Nano …, 2016 - ACS Publications
Silica (SiO2) glass, an essential material in human civilization, possesses excellent
formability near its glass-transition temperature (T g> 1100° C). However, bulk SiO2 glass is …

Nucleation of plasticity in nanoparticle collisions

EN Millán, DR Tramontina, HM Urbassek, EM Bringa - Physical Review E, 2016 - APS
While at small collision velocities collisions of nanoparticles (NPs) are elastic, they become
plastic at higher velocities. We study the elastic-plastic threshold and the onset of plasticity …

[HTML][HTML] The elastic–plastic transition in nanoparticle collisions

EN Millán, DR Tramontina, HM Urbassek… - Physical Chemistry …, 2016 - pubs.rsc.org
When nanoparticles (NPs) collide with low velocities, they interact elastically in the sense
that–besides their fusion caused by their mutual van-der-Waals attraction–no defects are …

Fluid-like surface layer and its flow characteristics in glassy nanotubes

MC Wingert, S Kwon, S Cai, R Chen - Nano Letters, 2016 - ACS Publications
We show that amorphous silica and Si nanotubes can flow at room temperature under Giga-
Pascal order stress when going to the nanometer scale. This creep behavior is unique for …