The Si3N4 microcrystals with a hollow sphere structure were prepared by using the simple heat treatment of the Si3N4 flakes, which were prepared by using the cathode arc plasma. The products were characterized by XRD, SEM and TEM. The photoluminescence (PL) spectrum of the Si...
Preparation and magnetic property characterization of Fe3O4 nanoparticles coated with PEGMagnetic nanoparticles Fe3O4 were prepared using coprecipitation method. The surface of magnetic nanoparticles was coated with the layer of polyethylene glycol 400 (PEG-400) in three different weight ratio of ...
Si3N4烧结助剂致密化采用Y2O3-Al2O3复合烧结助剂制备Si3N4/TiCnano复合陶瓷材料,研究了Y2O3与A12O3的配比,烧结助剂体积分数对纳米复合陶瓷材料力学性能,致密化进程和显微结构的影响,并利用SEM等手段对其影响机理作了探讨.研究结果表明:烧结助剂的配比,体积分数影响到烧结体中液相的量和粘度等,并进一步影响到材料...
In this work, the Fe3O4@SiO2@schiff-base of Mo(MNPs) was synthesized a multistep procedure and was simultaneously doped in to electropolymerized polypyrrole(PPy) film using the cyclicvoltammetry(CV) technique. Scanning electron microscopy(SEM), electrochemical impedance spectroscopy(EIS) and CV ...
Co3O4nanocubesshape-controlledhydrothermal oxidationThe nanocubic Co3O4 was synthesized by hydrothermal oxidation method. The effects of cobalt salt, precipitating agent,surfactant, solvent, pH value of the suspension and the amount of oxidant H2O2 on the morphology and structure of ...