The econotherm is a high - efficiency heat exchanger that employs ceramic pellets as the heating medium 以陶瓷为热媒体的高效热交换器。
2.
For two hours show almost pure perovskite phase . the ceramic pellets have straw yellow luster at the edge of the ceramic pellets . the mechanic intensity of the ceramic pellets is rather high 经xrd测量，发现经过1100 2h处理的片子几乎为全钙钛矿相，而且机械强度高、陶瓷片边缘有淡黄色光泽、机械强度较高。
