Synthesis of Fe-doped alumina transparent ceramics by co-precipitation and vacuum sintering

2018 ◽  
Vol 44 (1) ◽  
pp. 799-804 ◽  
Author(s):  
Jinshan Huang ◽  
Qilong Liao ◽  
Fu Wang ◽  
Xu Huang ◽  
Hanzhen Zhu
Keyword(s):  
Transparent Ceramics ◽  
Vacuum Sintering ◽  
Co Precipitation

Co-precipitation synthesis and vacuum sintering of Nd:YAG powders for transparent ceramics

2015 ◽  
Vol 70 ◽  
pp. 365-372 ◽  
Author(s):  
W. Zhang ◽  
T.C. Lu ◽  
N. Wei ◽  
Y.L. Shi ◽  
B.Y. Ma ◽  
...  
Keyword(s):  
Transparent Ceramics ◽  
Vacuum Sintering ◽  
Precipitation Synthesis ◽  
Co Precipitation

Up-conversion and near infrared luminescence in Y2O3: Er3+, Yb3+ transparent ceramics

2016 ◽  
Vol 09 (01) ◽  
pp. 1650011 ◽  
Author(s):  
Liang Li ◽  
Xi-Yan Zhang ◽  
Zhao-Hui Bai ◽  
Wei-Li Dong ◽  
Hui Shi ◽  
...  
Keyword(s):  
Near Infrared ◽  
Precipitation Method ◽  
Transparent Ceramics ◽  
Vacuum Sintering ◽  
Infrared Luminescence ◽  
Ceramic Samples ◽  
Co Precipitation ◽  
Increasing Temperature ◽  
Sintering Method ◽  
Co Doped

Er[Formula: see text]/Yb[Formula: see text] co-doped Y2O3 transparent ceramics were fabricated by vacuum sintering method. The Y2O3: Er[Formula: see text]:Yb[Formula: see text] nonopowders were prepared by co-precipitation method in advance. The morphology of powders and ceramics as investigated. The powders exhibited well dispersive condition with 100[Formula: see text]nm in diameter. The compactness of ceramics increased obviously with the increasing temperature. No pore was found in the ceramic sintered at [Formula: see text]C. The ceramic samples showed intense near infrared luminescence peaking at 1535[Formula: see text]nm under the excitation of 980[Formula: see text]nm lasers, assigned to the [Formula: see text] transition of Er[Formula: see text]. The intense up-conversion emissions were observed under the excitation of 980[Formula: see text]nm and 1550[Formula: see text]nm lasers.

Co-Precipitation Synthesis of YAG:Ce Nanophosphor and Vacuum Sintering Fabrication of Transparent Ceramics

2017 ◽  
Vol 9 (3) ◽  
pp. 541-545 ◽  
Author(s):  
Huiqun Cao ◽  
Bing Lu ◽  
Hong Xin ◽  
Qi Qiu ◽  
Bin Yu ◽  
...  
Keyword(s):  
Transparent Ceramics ◽  
Vacuum Sintering ◽  
Precipitation Synthesis ◽  
Co Precipitation

Nd:YAG transparent ceramics fabricated by direct cold isostatic pressing and vacuum sintering

2015 ◽  
Vol 50 ◽  
pp. 25-31 ◽  
Author(s):  
Lin Ge ◽  
Jiang Li ◽  
Zhiwei Zhou ◽  
Binglong Liu ◽  
Tengfei Xie ◽  
...  
Keyword(s):  
Cold Isostatic Pressing ◽  
Transparent Ceramics ◽  
Vacuum Sintering ◽  
Isostatic Pressing

A homogeneous co-precipitation method to synthesize highly sinterability YAG powders for transparent ceramics

2015 ◽  
Vol 41 (2) ◽  
pp. 3283-3287 ◽  
Author(s):  
Jinsheng Li ◽  
Xudong Sun ◽  
Shaohong Liu ◽  
Xiaodong Li ◽  
Ji-Guang Li ◽  
...  
Keyword(s):  
Precipitation Method ◽  
Transparent Ceramics ◽  
Co Precipitation

scholarly journals Fabrication of Dy2O3 Transparent Ceramics by Vacuum Sintering Using Precipitated Powders

2020 ◽  
Vol 7 (1) ◽  
pp. 6
Author(s):  
Dianjun Hu ◽  
Xin Liu ◽  
Ziyu Liu ◽  
Xiaoying Li ◽  
Feng Tian ◽  
...  
Keyword(s):  
Near Infrared ◽  
Optical Quality ◽  
Precipitation Method ◽  
Infrared Range ◽  
Transparent Ceramics ◽  
Vacuum Sintering ◽  
Hydrogen Carbonate ◽  
Ammonium Hydrogen ◽  
Liquid Precipitation ◽  
Near Infrared Range

As a kind of promising material for a Faraday isolator used in the visible and near infrared range, Dy2O3 transparent ceramics were prepared by vacuum sintering from the nano-powders synthesized by the liquid precipitation method using ammonium hydrogen carbonate as precipitant with no sintering aids. The synthesized precursor was calcinated at 950 °C–1150 °C for 4 h in air. The influences of the calcination temperature on the morphologies and phase composition of Dy2O3 powders were characterized. It is found that the Dy2O3 powder calcinated at 1000 °C for 4 h is superior for the fabrication of Dy2O3 ceramics. The Dy2O3 transparent ceramic sample prepared by vacuum sintering at 1850 °C for 10 h, and subsequently with air annealing at 1400 °C for 10 h, from the 1000 °C-calcined Dy2O3 powders, presents the best optical quality. The values of in-line transmittance of the optimal ceramic specimen with the thickness of 1.0 mm are 75.3% at 2000 nm and 67.9% at 633 nm. The Verdet constant of Dy2O3 ceramics was measured to be −325.3 ± 1.9 rad/(T·m) at 633 nm, about 2.4 times larger than that of TGG (Tb3Ga5O12) single crystals.

High efficiency synthesis of Nd:YAG powder by a spray co-precipitation method for transparent ceramics

2018 ◽  
Vol 38 (5) ◽  
pp. 2454-2461 ◽  
Author(s):  
Wei Jing ◽  
Fang Li ◽  
Shengquan Yu ◽  
Xiangbo Ji ◽  
Tao Xu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Precipitation Method ◽  
Transparent Ceramics ◽  
Co Precipitation

Vacuum sintering and optical properties of Gd2-xNdxZr2O7 transparent ceramics using combustion synthesized nanopowders

2020 ◽  
Vol 100 ◽  
pp. 109622 ◽  
Author(s):  
Weiwei Li ◽  
Kuibao Zhang ◽  
Wenwen Zhao ◽  
Dayan Xie ◽  
Baozhu Luo ◽  
...  
Keyword(s):  
Optical Properties ◽  
Transparent Ceramics ◽  
Vacuum Sintering

Optical Properties and Microstructure of Mn: MgAl2O4 Transparent Ceramic after HIP Treatment

2008 ◽  
Vol 368-372 ◽  
pp. 417-419
Author(s):  
Yue Feng Sun ◽  
Tie Cheng Lu ◽  
Xue Jun Wang ◽  
Mu Yun Lei ◽  
Cun Xin Huang
Keyword(s):  
Optical Properties ◽  
Hot Isostatic Pressing ◽  
Wavelength Region ◽  
Optical Transmittance ◽  
Light Transmittance ◽  
Transparent Ceramics ◽  
Light Wavelength ◽  
Vacuum Sintering ◽  
Two Samples ◽  
Mn Doped

5.0at% and 10.0at% Mn-doped MgAl2O4 transparent ceramics have been prepared through vacuum sintering (1750°C /2h) and subsequent hot isostatic pressing (HIP) (1650°C /2h). The effect of microstructure on the light transmittance of the sintered MgAl2O4 is discussed. Results showed that the grains became dense and grain boundary became clear and most of pores inside and between grains were removed, so the transmittance of two samples increased. The optical transmittance of the 5.0at% specimens was increased by one times in the visible light wavelength region. HIP treatment has a great effect on improving the transparency of samples with low doping concentrations.

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