calcium carbide structure

2CoO_3 oxides with different φ have perovskite structure.

2CoO3催化剂具有钙钛矿型结构,催化剂的结构和性能随φ的不同而变化,当φ=1。

This paper describes the current researches in this sector in the world from the perspective of the perovskite structure,and points out the recent developments of lead-free piezoelectric ceramics and the major systems used in their research sector.

本文结合国际开发研究现状,从压电结构的钙钛矿型结构入手,主要论述了无铅压电陶瓷的发展现状,以及目前主要的无铅压电陶瓷的研究体系。