Synthesis and crystallization of anisotropic shaped ZrO2 nanocrystalline powders by hydrothermal process
Synthesis and crystallization of anisotropic shaped ZrO2 nanocrystalline powders by hydrothermal process
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DOI：
10.1016/s0167-577x(02)01248-x
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发表时间：
2003-05
影响因子：
3
通讯作者：
Hee-Jin Noh;D. Seo;Hwan Kim;J. -. Lee
中科院分区：
文献类型：
--
作者：
Hee-Jin Noh;D. Seo;Hwan Kim;J. -. Lee
以无定形氢氧化锆粉末（P1）和四方氧化锆粉末（P2）为原料，通过水热法合成了具有各向异性形状的纳米晶ZrO2粉末，反应温度范围为150-250°C，添加剂浓度为1, 5 M NaOH溶液。随着反应温度的升高，颗粒形状从球形变为纺锤状或棒状，并且单斜晶相的分数增加。在 5 M NaOH 溶液中，颗粒形状发生了积极的变化，并且向单斜晶系的转变比在 1 M NaOH 溶液中更快。
The nanocrystalline ZrO2powders with anisotropic shapes were synthesized from the amorphous zirconium hydroxide powder (P1) and the tetragonal zirconia powder (P2) by hydrothermal process with the reaction temperature range 150–250 °C and additive concentration 1, 5 M NaOH solutions. With increasing the reaction temperature, the particle shape was altered from spherical to spindle- or rod-like and the fraction of monoclinic phase increased. In 5 M NaOH solution, the particle shape was actively changed and the transformation to the monoclinic was faster than in 1 M NaOH solution.