共 1 条
- [1] Okuyama K., Et al., Preparation of fine particles of superconducting oxides by aerosol reactor., Journal of the Society of Powder Technology, Japan, 26, (1989)
PREPARATION OF SUPERCONDUCTING FINE PARTICLES IN THE BI-(PB)-CA-SR-CU-O SYSTEM USING THE SPRAY-PYROLYSIS METHOD
被引：11
作者：
TOHGE, N
TATSUMISAGO, M
MINAMI, T
OKUYAMA, K
ARAI, K
INADA, Y
KOUSAKA, Y
机构：
[1] Department of Applied Chemistry, University of Osaka Prefecture, Sakai, Osaka, 591, Mozu-umemachi
[2] Department of Chemical Engineering, University of Osaka Prefecture, Sakai, Osaka, 591, Mozu-umemachi
关键词：
D O I：
10.1007/BF00716016
中图分类号：
TM [电工技术];
TN [电子技术、通信技术];
学科分类号：
0808 ;
0809 ;
摘要：
Uniformly-distributed fine particles of the compositions Bi2Ca2Sr2Cu3Ox and Bi1.8Pb0.2Ca2Sr2Cu3Ox have been prepared by the spray-pyrolysis method. The particles produced were spherical and their size could be controlled from submicrometer to micrometer by changing the concentration of the metal nitrates in the starting aqueous solutions. The crystalline phases of these particles were found to be greatly dependent on the oxygen partial pressure in the carrier gas, as well as the decomposition temperature. In the Bi2Ca2Sr2Cu3Ox particles, the 80 K superconducting phase was only formed at around 800° C in nitrogen or low oxygen partial pressure, while the formation of the 80 K phase was further suppressed in the Bi1.8Pb0.2Ca2Sr2Cu3Ox particles. © 1990 Chapman and Hall Ltd.
引用
收藏
页码：46 / 48
页数：3
相关论文