Growth, thermal and spectroscopic characterizations of BaNd2(MoO4)4 crystal

Han, Seonggyun; Wang, Jing; Li, Jing; Guo, Yali; Wang, Yongzheng; Zhao, Liang

doi:10.1016/j.jlumin.2010.10.005

Cited by 11 publications

(4 citation statements)

References 17 publications

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“…The “x” phases might be Nd 2 O 3 –MoO 3 compounds and cannot be identified from the PDF data base. When calcinations temperature reached 850°C, only pure monoclinic BaNd 2 (MoO 4 ) 4 phase was observed and all the peaks can be indexed in accordance with the standard JCPDS Card File 84‐0145, which is similar to work of Han et al . For BaSm 2 (MoO 4 ) 4 composition, the pure monoclinic phase can be formed at a low calcination temperature 600°C, which is much lower than 850°C for BaNd 2 (MoO 4 ) 4 composition.…”

Section: Resultssupporting

confidence: 83%

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New Microwave Dielectric Ceramics BaLn₂(MoO₄)₄ (Ln = Nd and Sm) with Low Loss

Zhou

Pang

Guo

et al. 2011

Journal of the American Ceramic Society

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In the present work, a pure monoclinic phase of BaNd 2 (MoO 4 ) 4 and BaSm 2 (MoO 4 ) 4 was formed at 850°C and 600°C, respectively, via a solid-state reaction method. The ceramic samples were found to be well densified at 960°C. Dense and homogeneous microstructures were revealed from the scanning electron microscopy. The microwave dielectric behaviors were studied as a function of sintering temperature and characterized in the temperature range 25°C-120°C. The best properties were obtained in ceramics sintered at 960°C with a permittivitỹ 11.7, a Q 3 f value of 45 000 GHz and a temperature coefficient of frequency about À41 ppm/°C for BaNd 2 (MoO 4 ) 4 ceramic at 9.9 GHz, and a permittivity~11.8, a Q 3 f value of 20 000 GHz, and a temperature coefficient of frequency about À34 ppm/°C for BaSm 2 (MoO 4 ) 4 ceramic at 9.7 GHz, respectively.

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Section: Resultssupporting

confidence: 83%

“…In 2011, the BaNd 2 (MoO 4 ) 4 crystal was grown by Han et al . and a potential value as a solid‐state laser material has been shown . These results attracted our attention to study the microwave dielectric properties of other BaLn 2 (MoO 4 ) 4 ceramics.…”

Section: Introductionmentioning

confidence: 73%

New Microwave Dielectric Ceramics BaLn₂(MoO₄)₄ (Ln = Nd and Sm) with Low Loss

Zhou

Pang

Guo

et al. 2011

Journal of the American Ceramic Society

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“…MR 2 (MoO 4 ) 4 (M: bivalent alkaline earth metal ion and R: trivalent rare earth ion) compounds are well known as optical materials and belong to a group of double alkaline earth lanthanide molybdates. Due to their spectroscopic characteristics, MR 2 (MoO 4 ) 4 compounds have been paid much attention as new laser crystal materials [8][9][10][11][12]. Recent studies indicated that many MoO 3 -rich systems possess high microwave dielectric properties [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Microwave dielectric properties of BaY2(MoO4)4 ceramic with low sintering temperature

Zhou

2014

J Mater Sci: Mater Electron

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A low firing microwave dielectric ceramic BaY 2 (MoO 4 ) 4 with monoclinic phase was prepared by using solid state reaction method. Microstructure and microwave dielectric properties of the ceramic were investigated. Optimized microwave dielectric properties were obtained in the ceramic sintered at 925°C for 2 h with a relative permittivity *11.5, a Q 9 f value about 47,200 GHz (at 10.3 GHz) and a temperature coefficient of resonant frequency of -35 ppm/°C. Furthermore, 0.5BaY 2 (MoO 4 ) 4 -0.5TiO 2 ceramic sintered at 970°C for 2 h with a relative permittivity *13.6, a Q 9 f value about 30,800 GHz (at 9.6 GHz) and a near zero s f value of ?0.8 ppm/°C.

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“…Balakireva et al reported the spectroscopic characterizations of Nd 3+ -doped BaGd 2 (MoO 4 ) 4 [19]. Han et al [20] confirmed BaNd 2 (MoO 4 ) 4 to be a potential solid-state laser material. The spectral and laser parameters of Yb 3+ -doped BaGd 2 (MoO 4 ) 4 crystal reveal that this crystal is promising for A series of red-emitting phosphors of MR 2 (MoO 4 ) 4 :Eu 3+ (M = Ba, Sr, Ca; R = La 3+ , Gd 3+ , Y 3+ ) were prepared by solid-state reaction.…”

Section: Introductionmentioning

confidence: 99%