当前位置: X-MOL 学术J. Eur. Ceram. Soc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Vacuum sintering of highly transparent La1+xYb1+yZr2O7 ceramics with excess La and Yb contents
Journal of the European Ceramic Society ( IF 5.8 ) Pub Date : 2020-10-27 , DOI: 10.1016/j.jeurceramsoc.2020.10.045
Ting Deng , Kuibao Zhang , Kui Liu , Jianjun Zeng , Daimeng Chen , Haiyan Guo

In this study, a series of transparent ceramics with chemical composition of La1+xYb1+yZr2O7 (x, y = 0.1−0.5) were successfully prepared by vacuum sintering using combustion synthesized powders. The effects of excess contents on the phase composition, microstructure and in-line transmittance have been studied. The detailed results indicate that the in-line transmittance increases at first and then decreases as La content be elevated. It was also determined that the highest in-line transmittance of La1+xYb1+yZr2O7 (x, y = 0.1−0.5) ceramics is 84.1 % at 1100 nm when the excess amount of co-doped La-Yb is 30 %. Compared with stoichiometric LaYbZr2O7 ceramic, the nonstoichiometric La1+xYb1+yZr2O7 (x, y = 0.1−0.5) ceramics exhibit much higher transparency. In addition, the high excess amount of La, Yb and co-doped La-Yb also shows effects on the phase composition and crystal structure.



中文翻译:

过量烧结La和Yb的高透明La 1 + x Yb 1 + y Zr 2 O 7陶瓷的真空烧结

在这项研究中,使用燃烧合成粉末通过真空烧结成功地制备了一系列化学成分为La 1 + x Yb 1 + y Zr 2 O 7(x,y = 0.1-0.5)的透明陶瓷。研究了过量含量对相组成,微观结构和在线透射率的影响。详细的结果表明,在线透射率首先随着La含量的增加而增加,然后降低。还确定了La 1 + x Yb 1 + y Zr 2 O 7的最高在线透射率当共掺杂La-Yb的过量为30%时,(x,y = 0.1-0.5)陶瓷在1100 nm时为84.1%。与化学计量的LaYbZr 2 O 7陶瓷相比,非化学计量的La 1 + x Yb 1 + y Zr 2 O 7(x,y = 0.1-0.5)陶瓷具有更高的透明度。另外,过量的La,Yb和共掺杂的La-Yb也显示出对相组成和晶体结构的影响。

更新日期:2020-12-01
down
wechat
bug