Fabrication and properties of Y2Ti2O7 transparent ceramics with excess Y content

Wang, Xiaojun; Xie, Ju; Wang, Zhengjuan; Zhou, Guohong; Shi, Ying; Wang, Shiwei; Mao, Xiaojian

doi:10.1016/j.ceramint.2018.02.170

Cited by 33 publications

(15 citation statements)

References 20 publications

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“…Y 2 Ti 2 O 7 transparent ceramics with excessive level of Y were prepared by using solid-state reactive vacuum sintering with commercial powders of Y 2 O 3 and TiO 2 as the precursors. 46 As expected, there was an optimal concentration of excessive Y, in terms of densification and optical transparency. Specifically, with 2% excessive Y, the Y 2 Ti 2 O 7 sample exhibited an optimized in-line transmittance of 49.9% at 1100 nm.…”

Section: Titanatesupporting

confidence: 67%

“…Photographs of the Y 2þx Ti 2 O 7þ3Â=2 ceramics sintered at 1600 ○ C for 6 h before (with a thickness of 1.5 mm) and after annealing at 1000 ○ C for 6 h (with a thickness of 0.5 mm). Reproduced with permission from Ref 46…”

mentioning

confidence: 99%

“…In-line transmittance curves of the Y 2þx Ti 2 O 7þ3Â=2 ceramics, with a thickness of about 0.5 mm, after vacuum sintering at 1600 ○ C for 6 h, followed by air annealing at 1000 ○ C for 6 h. Reproduced with permission from Ref 46…”

mentioning

confidence: 99%

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An overview on transparent ceramics with pyrochlore and fluorite structures

Liu

Xiang

et al. 2020

J. Adv. Dielect.

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Transparent ceramics have potential applications in various areas, including aerospace, relativistic optics industries, medical cares and defense. Specifically, they can be used as laser gain media, armor windows, IR domes, solid-state phosphors, scintillators and electro-optical components. From crystal structure point of view, transparent ceramic materials should have high crystallographic symmetries (cubic, tetragonal and hexagonal), which have minimal birefringent effect. Currently, transparent ceramics are dominantly based on oxide materials, although there are also nonoxides, such as fluorides and nitrides (oxynitrides). Transparent ceramics with pyrochlore and fluorite structures have attracted much attention in recent years, whereas fluorides are not well described in the open literature. Therefore, this paper is aimed to deliver an overview on the progress of the two categories of transparent ceramics, from material processing and characterization point of view.

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Section: Titanatesupporting

confidence: 67%

mentioning

confidence: 99%

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An overview on transparent ceramics with pyrochlore and fluorite structures

Liu

Xiang

et al. 2020

J. Adv. Dielect.

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“…Moreover, other A 2 Ti 2 O 7 system transparent ceramics would be developed to enrich the application fields. Recently, Wang et al [102] found that the addition of excess Y can improve the transparency of Y 2 Ti 2 O 7 transparent ceramics fabricated by solid state reactive sintering in vacuum. When the excess amount of Y to Ti is 2%, the highest in-line transmittance reached to 49.9% at 1100 nm (Fig.…”

Section: A 2 Ti 2 O 7 System Transparent Ceramicsmentioning

confidence: 99%

“…Transmittance of Y 2+x Ti 2 O 7+3x/2 ceramics vacuum sintered at 1600 ℃ for 6 h and annealed at 1000 ℃ for 6 h (0.5 mm thick). Reproduced with permission from Ref [102],. © Elsevier Ltd. 2018.…”

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confidence: 99%

Recent development of A2B2O7 system transparent ceramics

et al. 2018

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A 2 B 2 O 7 system compounds, which usually present three phase structures mainly based on the ionic radius ratios of r A and r B (r A /r B), have been studied for potential applications in many fields, such as thermal barrier coatings, luminescence powders, fast-ion conductors, photocatalysts, and matrices for immobilization of highly active radionuclides. Since 2005, La 2 Hf 2 O 7 was fabricated into transparent ceramics and much more attentions were paid on A 2 B 2 O 7 transparent ceramics for new applications. In this review, the development of A 2 B 2 O 7 system transparent ceramics was described. The structure characteristics, powder synthesis method, and sintering techniques of the final A 2 B 2 O 7 transparent ceramics were summarized. After that, the mostly reported A 2 Hf 2 O 7 , A 2 Zr 2 O 7 , and A 2 Ti 2 O 7 system transparent ceramics were systematically introduced. The potential application fields and future development trends were also discussed, focusing on scintillators, optical elements, and other luminescent materials.

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