The method for preparing yttrium oxide with large specific surface area was introduced. By means of BET, SEM, TG and DTA analysis, the effects of precipitant, s
The optimum quenching rates and annealing conditions to prepare near stoichiometrical (Nd,Pr)12(FeCoZr)82B6 bonded magnets were investigated by using sub-overqu
The phenomena of acoustic emission in doped lithium niobate crystals were observed in the process of light-induced quasi-breakdown. It is found that the ultraso
The doping effect of rare earth elements (Tb and Sm) on the electronic structure of (110) martensitic twin boundary in Ni2MnGa alloys was investigated by using