Single step synthesis of GdAlO3 powder

Sinha, Amit; Nair, Sathi; Sinha, Pankaj

doi:10.1016/j.jallcom.2011.01.156

Cited by 17 publications

(5 citation statements)

References 20 publications

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“…This tritium breeder is most commonly used as pebble or pellet. Significant work has been done on the fabrication of Li 2 TiO 3 pebbles [7][8][9][10][11][12][13][14][15][16]. Tritium release is one of the most important features for breeding materials [17].…”

Section: Introductionmentioning

confidence: 99%

Effect of Li+ ion mobility on the grain boundary conductivity of Li2TiO3 nanoceramics

et al. 2014

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Lithium titanate (Li 2 TiO 3 ) is one of the most promising candidates among the tritium breeding materials because of its good tritium release capacity. Li concentration has much significance on the diffusivity of tritium in the material. The nanocrystalline single-phase Li 2 TiO 3 with monoclinic structure has been prepared by high energy ball milling followed by calcination at 700 ℃ for 2 h. The field emission scanning electron microscopy (FESEM) studies confirmed uniform distribution of nanocrystalline phase with particle size below 100 nm. The study of the Li + ion diffusion on the sintered sample was investigated by means of electrical conductivity measurements. Electrical properties of the samples were studied in wide temperature (50-500 ℃) and frequency (100 Hz-1 MHz) ranges. The complex impedance spectroscopy (CIS) studies showed the presence of both bulk and grain boundary effects in nanocrystalline Li 2 TiO 3 . The bulk resistance of the samples has been observed to decrease with rise in temperature showing a typical negative temperature coefficient of resistance (NTCR) behavior. The low activation energies of the samples suggested the presence of singly ionized oxygen vacancies in the conduction process. The hopping frequency shifted toward higher frequency with increase in temperature. Activation energy of 0.86 eV was calculated from AC conductivity.

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Section: Introductionmentioning

confidence: 99%

Effect of Li+ ion mobility on the grain boundary conductivity of Li2TiO3 nanoceramics

et al. 2014

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“…The fuel acts in the formation of a metallic ion complex, consequently facilitating the mixture in a molecular level of the cations in the solution, as well as source of carbon and hydrogen, which in the combustion in the flame delivers heat to the chemical reactions (Sinha et al 2011). The fuel acts in the formation of a metallic ion complex, consequently facilitating the mixture in a molecular level of the cations in the solution, as well as source of carbon and hydrogen, which in the combustion in the flame delivers heat to the chemical reactions (Sinha et al 2011).…”

Section: Precursor Solutionsmentioning

confidence: 99%

Flame Spray Technology

Bergmann

Trommer

2015

Topics in Mining, Metallurgy and Materials Engineering

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“…Eu:GAP powder phosphors have been widely studied. Broadband or line-spectral luminescence in multiple bands in the 590–696 nm range can be observed in Eu:GAP phosphor synthesized by various methods, such as the sol–gel process, co-precipitation method, combustion synthesis, and precursor decomposition approach [ 29 , 30 , 31 ]. Luo et al [ 32 ] investigated the Eu concentration effect in GAP powder phosphors and concluded that the 8 at.% Eu-doped GAP reached the maximum luminescence intensity.…”

Section: Introductionmentioning

confidence: 99%

Eu3+-Doped (Gd, La)AlO3 Perovskite Single Crystals: Growth and Red-Emitting Luminescence

Zhang

Shi

et al. 2023

Materials

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Eu3+-doped GdAlO3 (Eu:GAP) and Gd0.5La0.5AlO3 (Eu:GLAP) perovskite single crystals were successfully grown using the optical floating zone (OFZ) method. The microstructure, optical, photoluminescence (PL) and radioluminescence (under X-ray excitation, XEL) were investigated. Under the PL excitation of 275 nm, obvious emission bands peaking at 556 nm, 592 nm, 617 nm, 625 nm, 655 nm, and 706 nm were demonstrated, which correspond to the 5D0 → 7Fj (j = 0–4) transitions of Eu3+. The grown Eu:GAP single crystal showed a stronger PL intensity compared with that of Eu:GLAP in the red light region. After annealing at 1000 °C for 4 h in weak reductive atmosphere (Ar + 5% H2), a slight redshift and dramatic enhancement of PL and XEL intensity occurred. In addition, Eu:GLAP show a more intense XEL emission than that of Eu:GAP. Considering their different densities, these two kinds of red luminescence phosphors are proposed to be promising in a wide field of X-ray imaging, warm white, or plant lighting, respectively.

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Single step synthesis of GdAlO3 powder

Cited by 17 publications

References 20 publications

Effect of Li+ ion mobility on the grain boundary conductivity of Li2TiO3 nanoceramics

Effect of Li+ ion mobility on the grain boundary conductivity of Li2TiO3 nanoceramics

Flame Spray Technology

Eu3+-Doped (Gd, La)AlO3 Perovskite Single Crystals: Growth and Red-Emitting Luminescence

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