The porous ceramic samples of La0.67-xBixSr0.33MnO3 (x=0, 0.1, 0.2) compounds have been prepared by solid state reaction. The electrical and magnetic properties as well as the CMR effect of these samples have been studied.

• 用固相反应法制备了钙钛矿型氧化物La0.；67-xBixSr0