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. RIDDLE et al [16] found that alloys containing both Sc and Zr show even better recrystallization resistance than either addition of Sc or Zr. Moreover, Sc is more costly than Zr, which restricts...]. As early as the 1930 s, OROWAN [19] reported that metastable precipitates in peak-aged aluminum alloys will turn to over-aging state even at room temperature during cyclic deformation, resulting......
were investigated. The results show that the optimum ranges of potentials for electrodeposition and annealing temperature are about -0.6--0.8 V(vs SCE) and 440-610 ℃, respectively. Annealing......
to the formation of the ε16 crystalline structure, the quasiperiodic structure forms at higher temperature. Within the compositional range suitable for the formation of an Al-Pd-Fe complex structure......
accumulation and orientation of the ore-bearing fluid. The genesis of the ore deposit belongs to the typical magmatic hydrothermal gold ore deposit of the middle-low temperature. Key words: Yixingzhai gold......
) Abstract: W doped rutile TiO2 powders with different W doping concentrations were prepared by low temperature ultrasonic hydrolysis using tetrabutyl titanate(C16H36O4Ti) as raw material. The powders......
increases with increasing crystallization temperature and the amount of crystals increases with increasing holding time. A novel transparent Yb3+-doped glass-ceramics is obtained by optimizing heat......
temperature. The overcharging experiments show that the safety of LiCoO2/graphite lithium-ion battery can be improved by choosing PVDF as adhesive and conductive carbon black as conductive additive......
is about 30-150 nm and decreases with the decrease of preparation temperature of K2Ti2O5 film. The TiO2 film electrode has typical photoelectrochemical activities and high stability in 0.1mol/L Na2SO4..., LU X H, ZHANG Q T, XU Z Z. Reaction and crystallization mechanism of potassium dititanate fibers synthesized by low-temperature calcination[J]. Cystal Growth & Design, 2005, 5(4): 1399-1404. [18......
such as pH, different molar ratios of n(Ce3+)/n(Al3+), aging temperature and aging time on the crystal form of MgAlCe-CO3-HTLcs were investigated. The synthesized materials were analyzed and characterized......
is aged at 170, 185 and 200 ℃, while the peak hardness decreases with the increase of the aging temperature. The addition of Ag in Al-Cu-Mg alloy promotes the formation of Ω phase and increases...: 174-180. [16] ABIS S, MENGUCCI P, RIONTINO G. A study of the high-temperature ageing of Al-Cu-Mg-Ag alloy 201[J]. Philosophical Magazine B, 1993, 67(4): 465-484. [17] RINGER S P, HONO K, POLMEAR I J......