Hitachi Metals, Ltd.

Toyama Prefecture

Fan Zhang

Tomoaki Karaki

There is provided an anisotropically shaped powder preferred as plate-like crystals used in the process of producing niobate-based KNbO&#x2014;NaNbO&#x2014;LiNbO-based crystal-oriented ceramics and the like, and a method for producing the same. The production method includes, an oxide powder, such as NbO, and a surfactant are added to an aqueous solution of alkali hydroxides, such as NaOH and KOH to perform hydrothermal synthesis, the product obtained after this reaction is washed with an organic solvent, and further, the product after the washing is fired at 170&#xb0; C. to 700&#xb0; C. In addition, according to this production method, it is possible to obtain an anisotropically shaped powder having a ratio of an average particle length in a major axis direction to an average particle length in a thickness direction in the range of 2 to 20 and having a pseudo-cubic perovskite structure in which a crystal face is oriented in a (100) plane.

Growing community of inventors

Heping District, China

Fan Zhang