Equilibrium and kinetic surface segregations in Cu–Sn thin films

Direct Observation of Large Flexoelectric Bending at the Nanoscale in Lanthanide Scandates

“…The theoretical understanding of the effect has advanced at the quantum level due to dynamic polarization theory [47][48][49][50] and density functional theory (DFT) [51][52][53], as well as at the continuum level with elastic theory [9,[54][55][56]. Additionally, there have been a number of papers analyzing the mechanics at the micron [20,57] and nano scale [8,[58][59][60][61] as well as in thin films [33,62,63]. Consequently, flexoelectricity has been studied in a number of oxide systems [64][65][66][67].…”

Effect of La2O3on microstructure and properties of Cu20Fe80alloy by microwave sintering

“…But the traditional bearing mixed iron copper powder, the compressive strength, hardness is based on copper based materials on the increased slightly, poor corrosion resistance, and will inevitably generate and microstructure segregation caused by inhomogeneity of hard phase and the performance of the resulting running noise increases and shorten the service life of the bearing, the in the large-scale automation production process, is not conducive to ensure the consistency and stability of the product performance [4][5][6][7] . In this paper, La 2 O 3 was added in the preparation of Cu-Fe alloy, and the effect of La 2 O 3 on the microstructure and properties of Cu-Fe alloy during mechanical alloying and cold pressing microwave sintering was studied.…”

Study on mechanical properties and microstructure of Cu20Fe80alloy using the mechanical alloying

“…The inhomogeneity caused the performance of the bearing in the operation noise increased and shortened service life [4][5][6][7]. In this paper, the preparation method of the combination of mechanical alloying, cold pressing and microwave sintering is proposed.…”