摘要
本文首先采用传统的无压烧结工艺制备了高密度导电的铝和硼共掺杂ZnO陶瓷(ABZO),采用相似的工艺合成了单掺铝的ZnO陶瓷(AZO),并对两种方法制备的样品进行了表征。研究了陶瓷的致密化行为、晶体结构、形貌、成分和电性能。结果表明,AZO陶瓷仅在1350℃烧结4h时获得相对密度最高为99.01%的陶瓷,但由于陶瓷中形成的绝缘ZnAl;O;相增多,电导率下降。而在1100℃时,ABZO陶瓷达到了98.84%的最大相对密度,比AZO陶瓷低250℃。随着烧结温度的升高和绝缘ZnAl;O;相的增加,ABZO陶瓷的电导率显著提高。
In this paper, high density conductive aluminum and boron co-doped ZnO ceramics(ABZO)were prepared by traditional pressure-free sintering process, and single aluminum doped ZnO ceramics(AZO)were synthesized by similar process, and the samples prepared by the two kinds of samples were characterized. The densification behavior, crystal structure, morphology, composition and electrical properties of the ceramics were studied.The results showed that when the AZO ceramics are sintered at 1350℃ for 4h, the ceramics with the highest relative density of 99.01% are obtained. However, the electrical conductivity decreases due to the increase of insulating ZnAl;O;phase formed in the ceramics. At 1100℃, ABZO ceramics reached a maximum relative density of 98.84%,which was 250℃ lower than AZO ceramics. With the increase of sintering temperature and the increase of insulating ZnAl;O;phase, the electrical conductivity of ABZO ceramics increases significantly.
作者
马艳红
MA Yan-hong(Chaozhou Third Ring(Group)Co.,Ltd.,Chaozhou 521000,China)
出处
《化学工程师》
CAS
2022年第4期83-87,共5页
Chemical Engineer
基金
广东省重点领域研发计划项目(No.2019B121204001)。
关键词
铝硼共掺杂
ZnO陶瓷
表征
性能
Al/B co-doping
ZnO ceramics
characterization
performance
