Abstract: The preparation of fine powders of nanosized TiO₂-ZrO₂ composite oxides using hydrothermal method was investigated. ZrO₂(C)-TiO₂(A), ZrO₂(C)-TiO₂(R), ZrO₂(T)-TiO₂(A), ZrO₂(T)-TiO₂(R) nanosized composite-oxides and amorphous composite-hydrous oxides of Ti-Zr were obtained. Their transformation and stability were studied. The ZrTiO₄ ceramic with theoretical density of 95% was obtained at 1400^oC for 10h.

Key words: Zirconia, Titania, Zirconium titanate, composite oxides

摘要： 研究了用水热法制备纳米ZrO₂-TiO₂复合氧化物微粉。制备了ZrO₂(C)-TiO₂(A)，ZrO₂(C)-TiO₂(R)，ZrO₂(T)-TiO₂(A)，ZrO₂(T)-TiO₂(R)四组纳米复合氧化物及无定形的复合 Zr-Ti 水合氧化物。研究了它们的相变和可烧结性。经1400℃烧结10h得到了具有95%理论密度的ZrTiO₄陶瓷。

关键词: 二氧化锆, 二氧化钛, 钛酸锆, 复合氧化物