Fabrication of submicron-grained IR-transparent Y2O3 ceramics from commercial nano-raw powders

Gan, Lin; Park, Young-Jo; Kim, Haneul; Kim, Jin-Myung; Ko, Jae‐Woong; Lee, Jae‐Wook

doi:10.1016/j.ceramint.2015.06.011

Cited by 14 publications

(3 citation statements)

References 16 publications

(24 reference statements)

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“…It has been widely used to synthesize transparent armor ceramics, such as submicron grained alumina (Al 2 O 3 ) [92] and spinel (MgAl 2 O 4 ) [93]. Nowadays, HIP process was also used to prepare cubic sesquioxide ceramics, including Y 2 O 3 [94], Sc 2 O 3 [95], and Lu 2 O 3 [11]. In these cases, vacuum sintering was first used to remove closed porosity, and then a subsequent HIP step was employed.…”

Section: Hot Isostatic Pressing Sinteringmentioning

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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Section: Hot Isostatic Pressing Sinteringmentioning

confidence: 99%

Recent development of A2B2O7 system transparent ceramics

et al. 2018

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“…Transparent polycrystalline ceramics have attracted widespread attention due to their wide range of applications such as laser hosts, infrared windows/domes, and transparent armors, instead of their single-crystal counterparts, mainly due to their processing flexibility and low cost for fabricating items with large sizes and complex shapes [1][2][3]. In particular, transparent polycrystalline ceramics have great potential in the application of infrared windows because of their excellent optical and mechanical properties [4][5][6]. With the increasingly harsh service environment of infrared windows, higher requirements are being suggested for the optical and mechanical properties of infrared windows in extreme environments [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…With the increasingly harsh service environment of infrared windows, higher requirements are being suggested for the optical and mechanical properties of infrared windows in extreme environments [7,8]. Although traditional single-phase infrared transparent ceramics such as Y 2 O 3 , MgF 2 , and MgAl 2 O 4 have high infrared transmittance, the inevitable grain coarsening during the preparation process results in deteriorated mechanical properties, thus limiting their widespread application [5,9,10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of MgO Coating Gd2O3 Nanopowders for Consolidating Gd2O3-MgO Nanocomposite with Homogenous Phase Domain Distribution and High Mid-Infrared Transparency

Long

et al. 2022

Coatings

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Improved optical and mechanical properties are required for future infrared windows working in harsher mechanical and thermal environments than today. Ameliorating the homogeneity of the phase domain and reducing the size of the phase domain are effective approaches for enhancing the optical transmittance and mechanical hardness of a nanocomposite. In this work, we reported that the Gd2O3-MgO nanopowders were prepared by two different processes. The core–shell nanopowders synthesized by urea precipitation have a much lower agglomeration than the nanopowders prepared by sol–gel. Excellent transmittance (70.0%–84.1%) at 3–6 μm mid-infrared wave range and a high Vickers hardness value (10.3 ± 0.6 GPa) were maintained using the nanopowders synthesized by urea precipitation mainly due to its homogenous phase domain distribution.

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Effect of Al(OH)3 on sintering properties and thermal shock resistance of yttrium oxide materials

Chen,

Wei,

et al. 2024

J Mater Sci

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Fabrication of submicron-grained IR-transparent Y2O3 ceramics from commercial nano-raw powders

Cited by 14 publications

References 16 publications

Recent development of A2B2O7 system transparent ceramics

Recent development of A2B2O7 system transparent ceramics

Synthesis of MgO Coating Gd2O3 Nanopowders for Consolidating Gd2O3-MgO Nanocomposite with Homogenous Phase Domain Distribution and High Mid-Infrared Transparency

Effect of Al(OH)3 on sintering properties and thermal shock resistance of yttrium oxide materials

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