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The enhancement of strength of Cu-1.2wt%Ni-0.2wt%Be-0.1wt%Zr and Cu-1.4wt%Ni-0.25wt%P-0.1wt%Zr alloys has been tried by the combination of ARB process by 5 cycles and aging treatment at 350 to 450°C. The grain sizes of the alloys, severely deformed by 5-cycle ARB process, were refined down to about 0.4μm. The Cu-Ni-Be-Zr alloy, ARB-processed and peak-aged at 375°C, exhibited a tensile strength σu...
The effect of polymers weakly adsorbed on a quartz surface on the structure of the interfacial water molecules was investigated by optical sum frequency (SF) spectroscopy. As polymers, poly(ethylene glycol) (PEG), poly(propylene glycol) (PPG), and two types of tri-block copolymer of Pluronic L64 and 17R-4 were used. SF intensity spectra of OH stretching mode of water molecules at the interface between...
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