| 简介 |
Known processes for producing nanoparticles of compounds of the transition metals Zr, Ti, Ta, rare earths (RE), Mn and Fe via microemulsions lead to products which contain impurities from the starting materials, in particular water, and these make further use of the nanoparticles, for example in high-temperature superconductors (HTSC), difficult. It is proposed that the nanoparticles be produced via water-free microemulsions comprising an outer phase composed of a nonpolar solvent and an inner phase composed of a polar water-free solvent. The nanoparticles obtained have good monodispersity and can be used in the production of REBa2Cu3O7 superconductors by incorporation into the precursor coating solution. |
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