In this study, a series of transparent ceramics with chemical composition of La_1+xYb_1+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 La_1+xYb_1+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 La_1+xYb_1+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.

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。