Controlling of Grain Size with Different Additives in Tm³⁺:Y₂O₃ Transparent Ceramics

Abstract

(Tm 0.01 Y 0.99 ) 2 O 3 transparent ceramics have been fabricated in a vacuum condition using high-purity Y 2 O 3 and Tm 2 O 3 powders as raw materials, and ZrO 2 and tetraethyl orthosilicate (TEOS) as additives. Effects of ZrO 2 and TEOS on controlling the growth of grain size were investigated to obtain high-opticalquality transparent ceramics. Self-compensation of ZrO 2 at high temperature offers vacancies, which promote the diffusion and densification rate. Meanwhile, the solid solution formed by substitution and interstice mechanism improves the optical quality of transparent ceramics significantly. The growth of grain size under different criteria was observed by field-emission scanning electron microscopy. The spectroscopic properties were also investigated. The result indicates that ZrO 2 is necessary for the sintering of yttrium-transparent ceramics, but TEOS fails to contribute in the yttrium system.

Sm3+-doped Sc2O3 polycrystalline ceramics: Spectroscopic investigation

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High‐entropy transparent ceramics: Review of potential candidates and recently studied cases

“…Transparent sesquioxide ceramics. (A) Nd:Y 2 O 3 , 163 Tm:Y 2 O 3 , 164 Nd:Lu 2 O 3 , 165 and Er:Lu 2 O 3 166 . (B) Sc 2 O 3 151 .…”

New double-sintering aid for fabrication of highly transparent ytterbium-doped yttria ceramics

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