Abstract: A method for synthesizing potassium titanate whiskers by microwave heating is described in this paper. A series of potassium titanium whiskers (K2Ti2O5, K2Ti4O9, K2Ti6O13) with diameter in the range of microns were obtained. Potassium carbonate and hydrous titanium oxide are used as starting materials. CuO and Fe3O4 are used as heating medium in order to induce the temperature. The effect of the experimental conditions including the ratio of starting materials, heating medium and irradiating time on the structure and morphology of the products were investigated. It was proved that the growth of whisker under microwave heating could be modeled with a “liquid melt inducing” mechanism.

Key words: microwave, solid state synthesis, whisker, potassium titanate

摘要： 应用微波合成技术，以碳酸钾和水合氧化钛为前驱体，CuO和Fe3O4为加热介质，合成出系列钛酸钾(K2Ti2O5, K2Ti4O9和K2Ti6O13)晶须和高结晶度的六钛酸钾粉末. 考察了微波加热介质、反应时间和反应Ti/K比等因素对产物物相和形貌的影响，证明微波条件下晶须的生长符合液相熔体诱导模型.

关键词: 微波, 固相合成, 晶须, 钛酸钾