Fabrication and characterization of Tb3Al5O12 magneto-optical ceramics by solid-state reactive sintering
Fabrication and characterization of Tb3Al5O12 magneto-optical ceramics by solid-state reactive sintering
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DOI：
10.1016/j.optmat.2020.109795
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发表时间：
2020-04
影响因子：
3.9
通讯作者：
X. Huang;L. Zuo;Xiaoying Li;Yagang Feng;Xin Liu;Xiaopu Chen;Tengfei Xie;Zhaoxiang Yang;
中科院分区：
文献类型：
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作者：
X. Huang;L. Zuo;Xiaoying Li;Yagang Feng;Xin Liu;Xiaopu Chen;Tengfei Xie;Zhaoxiang Yang;
以四乙氧基硅烷（TEOS）为助烧剂，采用真空固相反应烧结结合热等静压后处理制备了铽铝石榴石（TAG）透明陶瓷。研究了TEOS用量对TAG陶瓷致密化、微观结构和光学性能的影响。经1700℃预烧结20 h， 1700℃后处理3 h，添加0.2 wt% TEOS的TAG陶瓷在可见光和近红外区域的在线透过率可达66%左右。适量的助烧剂可以通过延长保温时间，显著提高TAG陶瓷在可见光波长范围内的透光率。
Terbium aluminum garnet (TAG) transparent ceramics were fabricated by solid-state reactive sintering in vacuum combined with hot isostatic pressing (HIP) post-treatment using tetraethoxysilane (TEOS) as sintering aid. The influences of TEOS amount on the densification, microstructure and optical properties of TAG ceramics were investigated. The in-line transmittance of the TAG ceramic with 0.2 wt% TEOS additive, which was fabricated by pre-sintering at 1700 °C for 20 h and HIP post-treating at 1700 °C for 3 h, can reach about 66% in the visible and near-infrared regions. With appropriate amount of sintering aid, the transmittance of TAG ceramics in the visible wavelength range can be improved significantly by prolonging the holding time.