Fabrication and magneto-optical property of yttria stabilized Tb2O3 transparent ceramics

Yang, Meiqi; Ding, Zhiyong; Xu, Jing; Tian, Tian; Jia, Runping; Wang, Zhanyong

doi:10.1016/j.jeurceramsoc.2019.07.010

Cited by 28 publications

(10 citation statements)

References 22 publications

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“…Second, fluorescent transparent ceramics solve the problem of fluorescent powder to light and low absorption rate, thereby increasing the overall luminous efficiency of LED. Finally, fluorescence transparent ceramics can achieve uniform codoping of a variety of luminescent ions, and it can also regulate fluorescent transparent ceramics permeate light, and it can transform light by changing parameters, such as the transmittance of the ceramic [ 8 , 9 ].…”

Section: Development and Application Of Transparent Ceramicsmentioning

confidence: 99%

Preparation and Optical Properties of Compound Nanopowder Art Ceramics

2022

International Journal of Analytical Chemistry

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The fluorescent glass of white LEDs has high physical and chemical stabilities, good heat dissipation performance, and can maintain an excellent performance of fluorescent powder itself. In order to realize luminescent materials such as white LED lighting, laser lighting, and long-term lighting, this study proposes the preparation of a compound nanopowder art ceramic and its optical properties. In order to play the role of nanoparticles in optoelectronic or photonic devices, it is necessary to explore the preparation process and performance research of dielectric ceramics. This study uses high-purity aluminate (MgAl2O4) powder for transparent ceramics, doped with yellow nanophosphor as raw materials, through a sintering process in oxygen atmosphere, sintering combined with heat treatment, and isostatic pressing to prepare transparent ceramics. The ceramic sample is placed in a high-temperature and high-pressure environment for heat and other static pressure, and fluorescent samples are obtained. The results show that under 350 mA driving current, high-power white LEDs in the fluorescent ceramic package have almost no attenuation after 700 h, and the average attenuation of the LED package of the phosphor package is about 10%. The use of fluorescent ceramics can be packaged not only to improve the LED device’s light efficiency but also to increase the life of the white LED device.

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Section: Development and Application Of Transparent Ceramicsmentioning

confidence: 99%

Preparation and Optical Properties of Compound Nanopowder Art Ceramics

2022

International Journal of Analytical Chemistry

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“…Such magneto-optical ceramics were also fabricated by Yang et al using co-precipitated ceramic nanopowders that were sintered in flowing hydrogen, which led to a ceramic with a higher Verdet constant and, thus, potentially better performance. 184 Good magnetooptical properties were also achieved in solid solution transparent (Dy x Y 0.95−x La 0.05 ) 2 O 3 ceramics. 185 Though there were limited reports on the scintillation properties of solid solution transparent sesquioxide ceramics, Rétot et al proposed Eu 3+ -doped (Lu 0.5 Gd 0.5 ) 2 O 3 as a new candidate, and this material achieved a better time response than the more well-studied Lu 2 O 3 :Eu 3+ ceramics.…”

Section: Transparent Sesquioxide Solid Solution Ceramicsmentioning

confidence: 93%

“…Such magneto‐optical ceramics were also fabricated by Yang et al. using co‐precipitated ceramic nanopowders that were sintered in flowing hydrogen, which led to a ceramic with a higher Verdet constant and, thus, potentially better performance 184 . Good magneto‐optical properties were also achieved in solid solution transparent (Dy x Y 0.95−x La 0.05 ) 2 O 3 ceramics 185 .…”

Section: X2o3 Sesquioxide Ceramicsmentioning

confidence: 99%

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

Zhang

2021

Int J Applied Ceramic Tech

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High‐entropy ceramics have been widely explored and extensively studied since the first demonstration of the configuration entropy stabilized reversible transitions between multiple and single phases by Rost et al. in 2015. Most of the current research on high‐entropy ceramics has focused on properties like thermal conductivity, thermoelectricity, structures, and others. Some recent studies have extended the high‐entropy concept to the field of transparent ceramics. We reviewed these papers and proposed four potential ceramics groups for high‐entropy transparent ceramics including fluoride ceramics, fluorite‐deficient and/or ordered pyrochlore A2B2O7 ceramics, garnet ceramics, and sesquioxide ceramics. In this article, we review ceramic powder synthesis, the fabrication of transparent ceramics, high‐entropy ceramics, and limited cases of high‐entropy transparent ceramics for each category. High‐entropy transparent ceramics with diverse compositions and structures will provide more possibilities for functional transparent ceramics in the future.

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“…The pure Tb 2 O 3 ceramics showed the highest value of the Verdet constant: 3.8 times higher than that of the commercial TGG. Yang et al [44] prepared the (Tb 0.5 Y 0.5 ) 2 O 3 transparent ceramics by flowing H 2 sintering from co-precipitation synthesis powders. The transmittance reached 71.9% at 1400 nm, and the Verdet constant at 633 nm was only 1.64 times that of TGG single crystals.…”

Section: Introductionmentioning

confidence: 99%

Terbium (III) Oxide (Tb2O3) Transparent Ceramics by Two-Step Sintering from Precipitated Powder

Zhang

et al. 2022

Magnetochemistry

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As a result of preliminary air calcination and subsequent reduction in a flowing NH3 atmosphere of the precursor from the liquid precipitation method for the first time, pure-phase Tb2O3 powder with an average particle size of 135 nm was prepared. The Tb2O3 magneto-optical transparent ceramics with the average grain size of 1.3 μm were successfully fabricated by vacuum pre-sintering and hot isostatic pressing post-treatment from the as-synthesized Tb2O3 powder. In-line transmittance values of Tb2O3 ceramics reach 70.3% at 633 nm, 78.1% at 1064 nm, and 79.4% at 1400 nm, respectively. Thanks to the high intrinsic concentration of Tb3+, Tb2O3 ceramics present high Verdet constants of −427.3 and −123.7 rad·T−1·m−1 at 633 and 1064 nm, which are about 3.1 and 3.4 times higher than those of commercial Tb3Ga5O12 crystals, respectively. Due to the excellent magneto-optical properties, Tb2O3 ceramics are promising candidates for the development of Faraday isolator toward compaction used in visible and near-infrared bands.

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Fabrication and magneto-optical property of yttria stabilized Tb2O3 transparent ceramics

Cited by 28 publications

References 22 publications

Preparation and Optical Properties of Compound Nanopowder Art Ceramics

Preparation and Optical Properties of Compound Nanopowder Art Ceramics

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

Terbium (III) Oxide (Tb2O3) Transparent Ceramics by Two-Step Sintering from Precipitated Powder

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