中國有色金屬學(xué)報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 8 No. 4 December 1998 |
PREPARATION OF CAPACITIVE-TYPE CO2GAS-SENSITIVE ELEMENT USING NANOMETER POWDERS
Liao Bo, Liu Yexiang, Wei Qin, Yang Jianhong and Li Jie
（Department of Metallurgy,Central South University of Technology, Changsha 410083, P. R. China）
Abstract:Nanometer BaTiO3and CuO powders were prepared by means of mechanophysical solid phase effects and powder metallurgy technology. A capacitive-type gas-sensitive element was made from those two powders, the results of gas-sensitive characteristics indicate that the element has good sensitivity to CO2 gas. XRD and SEM analyses show that the element is just a homogeneous functional composite which is made from two phases by simply mechanical mixing.
Key words: nanometer powder CuO-BaTiO3capacitive element gas-sensitive characteristic
