Title :
Structure and thermal evolution of submicrocrystalline Sr-M (M=Na,K) zirconates obtained from water solution
Author :
Makarova, M.V. ; Kazin, P.E. ; Tretyakov, Yu.D.
Author_Institution :
Moscow State Univ., Russia
Abstract :
Nanosized zirconates are interesting for the preparation of dense electrical ceramics as well as for protonic conductors. The techniques allowing to decrease particle size as compared to solid state reaction are: coprecipitation, sol-gel and hydrothermal methods. In the presented work submicrocrystalline zirconate powders were obtained by boiling of the suspension of strontium and zirconium hydroxides in MOH solution (M=Na,K). It was shown by EDX that the samples contain some amount of the M-cation (/spl sim/30 at% for Na and /spl sim/20% for K).
Keywords :
X-ray chemical analysis; crystal growth from solution; nanostructured materials; potassium compounds; sodium compounds; strontium compounds; EDX; SrKZrO/sub 3/; SrNaZrO/sub 3/; coprecipitation; dense electrical ceramics; hydrothermal methods; particle size; protonic conductors; sol-gel methods; solid state reaction; structure; submicrocrystalline SrK-zirconates; submicrocrystalline SrNa-zirconates; thermal evolution; water solution; Ceramics; Chemistry; Conductors; Contacts; Lattices; Powders; Protons; Solid state circuits; Temperature; X-ray scattering;
Conference_Titel :
Microprocesses and Nanotechnology Conference, 2002. Digest of Papers. Microprocesses and Nanotechnology 2002. 2002 International
Conference_Location :
Tokyo, Japan
Print_ISBN :
4-89114-031-3
DOI :
10.1109/IMNC.2002.1178579
