Lower temperature synthesis of cerium-doped polycrystalline lutetium pyrosilicate powders by a novel sol-gel processing

Fan, Lingcong; Xu, Jian; Shi, Ying; Xie, Ju; Lei, Fang

doi:10.1007/s11431-014-5600-7

Cited by 12 publications

(3 citation statements)

References 22 publications

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“…Lu 2 SiO 5 (LSO) and (Lu 0.95 Gd 0.05 ) 2 SiO 5 (LGSO) precursors were synthesized by a sol‐gel method 25,26 . Mechanical stirring was used to distribute the stoichiometric LuCl 3 ·6H 2 O (99.99%), GdCl 3 ·6H 2 O (99.99%) and tetraethyl orthosilicate (TEOS, AR) in isopropanol (AR).…”

Section: Methodsmentioning

confidence: 99%

A strategy for low thermal conductivity of lutetium oxyorthosilicate ceramics fabricated via texture engineering

Wang,

Fan,

Pan

et al. 2024

Int J Applied Ceramic Tech

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Submicrometer lutetium‐gadolinium oxyorthosilicate ((Lu0.95Gd0.05)2SiO5, LGSO) powder with a magnetic susceptibility of 4.19 × 10−6 (5.4 times that of lutetium oxyorthosilicate) was synthesized via a sol‐gel method. Slip casting with a 6 T assisted magnetic field and pressureless sintering at 1600°C for 16 h in the air effectively produced the textured LGSO ceramics with an orientation factor f of 0.96. The grains of textured LGSO ceramics grow with the preferred orientation along the b‐axis. The thermal conductivity of the textured LGSO ceramics reaches only 2.05 W·m−1·K−1 at 300 K, which is 34.5% lower than that of untextured LGSO ceramics. Textured LGSO ceramics provide increased fracture toughness. This work presents a microstructural design method for RE2SiO5 ceramics to regulate thermal and mechanical properties through texture engineering, as well as advice for the selection or optimization of RE2SiO5 ceramics as a Thermal Barrier Coatings (TBCs) material.

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Section: Methodsmentioning

confidence: 99%

A strategy for low thermal conductivity of lutetium oxyorthosilicate ceramics fabricated via texture engineering

Wang,

Fan,

Pan

et al. 2024

Int J Applied Ceramic Tech

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“…LSO:Ce (the atomic fraction of Ce relative to sum of Lu and Ce is 0.5%) precursors were prepared by a sol‐gel method 23 . The stoichiometric LuCl 3 ·6H 2 O, CeCl 3 ·7H 2 O, and ethyl orthosilicate were dispersed in isopropanol by stirring.…”

Section: Methodsmentioning

confidence: 99%

“…LSO:Ce (the atomic fraction of Ce relative to sum of Lu and Ce is 0.5%) precursors were prepared by a sol-gel method. 23 The stoichiometric LuCl The LSO:Ce slurry with volume of 2.0 ml was injected into a transparent plexiglass tube mold fixed on a cylindrical gypsum. Then, the gypsum was quickly transferred to the center of the strong magnetic field for slurry solidification.…”

Section: Methodsmentioning

confidence: 99%

Fabrication of textured cerium‐doped lutetium oxyorthosilicate ceramics by slip casting in a strong magnetic field

et al. 2022

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Cerium‐doped lutetium oxyorthosilicate (Lu2SiO5:Ce, LSO:Ce) slurry with 35 vol.% solid content and viscosity of 70 mPa ·$ \cdot $s (at a shear rate of 4 s–1) was prepared via a 24‐h ball milling for the powder calcined at 1200°C and adding ammonium polyacrylate of 0.2 wt.%. Textured LSO:Ce ceramics were fabricated via slip casting in a vertical magnetic field and subsequently pressureless sintering of 1650°C and hot isostatic pressing. The maximum Lotgering factor f and relative density of the textured ceramics were 0.48% and 98.8%, respectively. Effects of grain size, dispersant, viscosity of slurry, and magnetic flux density on the grain orientation of LSO:Ce ceramics were systematically investigated. Based on the spatial state of grains, we proposed the rotation rule that LSO:Ce grains with or without space constraints in the slurry align along a and c‐axis under the induction of a strong magnetic field.

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Controlling synthesis and host sensitized Eu3+ emissions of K5Gd9F32 and GdF3

Xie

Cao

et al. 2015

Sci. China Technol. Sci.

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Lower temperature synthesis of cerium-doped polycrystalline lutetium pyrosilicate powders by a novel sol-gel processing

Cited by 12 publications

References 22 publications

A strategy for low thermal conductivity of lutetium oxyorthosilicate ceramics fabricated via texture engineering

A strategy for low thermal conductivity of lutetium oxyorthosilicate ceramics fabricated via texture engineering

Fabrication of textured cerium‐doped lutetium oxyorthosilicate ceramics by slip casting in a strong magnetic field

Controlling synthesis and host sensitized Eu3+ emissions of K5Gd9F32 and GdF3

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