摘要
自发现La2-zSrzCuO4材料具有高温超导特性以来,对于它的研究引起了人们的广泛兴趣。但这种材料在制备成片状过程中存在成片困难及高温烧结时易破裂等问题,严重地影响了材料测试的准确性和可靠性。为此,我们采用了加入高分子材料分段升温烧结方法,经过反复实验和研究,制备出了高密度的片状La1.8Sr0.2CuO4材料。
La_1.8Sr_0.2CuO_4 pellets were prepared by using high polymer polyvinyl acetate as a binder and raising the temperature in several steps for sintering. The pellets were then well densified. The mechanism is discussed.
出处
《吉林大学自然科学学报》
CAS
CSCD
1991年第3期65-66,共2页
Acta Scientiarum Naturalium Universitatis Jilinensis
关键词
LaSrCuO
超导体
高TC
烧结
superconducting material, the preparation of LaSrCuO_4, polyvinyl acetate
