Lanthanum Influence on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>EuAlO</mml:mtext><mml:mtext>3</mml:mtext></mml:msub></mml:math>Perovskite Structural Properties: Experimental and Molecular Dynamics Studies

Lima, Enrique; Villafuerte‐Castrejon, M. E.; Sániger, José M.; Lara, V.H.; Sánchez-Sánchez, Jorge E.; Álvarez, Luis Javier

doi:10.1155/2012/238075

Cited by 3 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This amount represents <2 wt % of the powder, which could explain why it can hardly be observed by XRD. The 27 Al signal of LaAlO 3 was previously reported at 14 ppm, 34 in agreement with the value of 11.7 ppm determined here (Table 4) and corroborating the AlO 6 environment. 35 As expected for the two paramagnetic compounds, AmAlO 3 and PuAlO 3 , the NMR shifts are outside of the range of −10 to 15 ppm expected for an AlO 6 octahedron.…”

Section: Resultssupporting

confidence: 92%

Plutonium and Americium Aluminate Perovskites

et al. 2019

View full text Add to dashboard Cite

Both AmAlO3 and PuAlO3 perovskites have been synthesized and characterized using powder X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR), and 27Al magic angle spinning nuclear magnetic resonance spectroscopy (MAS NMR). AmAlO3 perovskite showed a rhombohedral configuration (space group R3̅c) in agreement with previous studies. The effect of americium α-decay on this material has been followed by XRD and 27Al MAS NMR analyses. In a first step, a progressive increase in the level of disorder in the crystalline phase was detected, associated with a significant crystallographic swelling of the material. In a second step, the crystalline AmAlO3 perovskite was progressively converted into amorphous AmAlO3, with a total amorphization occurring after 8 months and 2 × 1018 α-decays/g. For the first time, PuAlO3 perovskite was synthesized with an orthorhombic configuration (space group Imma), showing an interesting parallel to CeAlO3 and PrAlO3 lanthanide analogues. High-temperature XRD was performed and showed a Imma → R3̅c phase transition occurring between 473 and 573 K. The thermal behavior of R3̅c PuAlO3 was followed from 573 to 1273 K, and extrapolation of the data suggests that cubic plutonium perovskite should become stable at around 1850 K (R3̅c → Pm3̅m transition).

show abstract

Section: Resultssupporting

confidence: 92%

Plutonium and Americium Aluminate Perovskites

et al. 2019

View full text Add to dashboard Cite

show abstract

“…This indicates that the dopants enter the host lattice in a homogeneous way and preserve the crystallinity of the structure. 18 It should be noted that with increase in dopant concentration, the material's crystal structure would undergo more pronounced changes, potentially leading to the formation of sublattices, that could have a detrimental impact on the desired structural homogeneity.…”

Section: Resultsmentioning

confidence: 99%

Exploring the potential of Eu³⁺ and Mn⁴⁺ activated LaAlO₃ phosphors as red and far-red emitters for horticulture lighting

Jakka,

Silva,

Soares

et al. 2023

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…3). The 39.6° peak was due to the effect of Eu 2 O 3 [15], whereas the 41.9° peak was due to the effect of EuAlO 3 [16] and Eu 2 O 3 .…”

Section: Characteristics Of the Al 2 O 3 :Eu Scintillatormentioning

confidence: 94%

Real-Time Measurement of Ion Energies for Heavy Ions

Yokoyama

Kada

Satoh

et al. 2016

KEM

View full text Add to dashboard Cite

A real-time position detection system is developed for measuring heavy ions with low fluence and energy of several hundred MeV, which are generated from an azimuthally varying field (AVF) cyclotron accelerator. We investigate the photoluminescence of α-Al2O3 single crystals implanted with Eu (Al2O3:Eu), which is used in the detection system. The Al2O3:Eu scintillators with a fluence of 3.0 × 1016 cm−2 are annealed at 500–900°C. The annealing conditions required for the Al2O3:Eu scintillators to obtain the maximum luminescence are 0.5 h at 600°C. The scintillator is placed on the AVF cyclotron target stage under atmospheric pressure and is irradiated by 260-MeV Ne. An inverted confocal microscope with a ×10 objective lens is positioned behind the Al2O3:Eu scintillator, and the luminescent images during ion irradiation are obtained by a position-sensitive camera unit with a 512 × 512 pixel electron multiplying charge-coupled device. The images indicate that our online measurement system has a sufficient spatial resolution, since the luminous diameter induced by irradiation with 190 ions /s is almost the same as that of the microbeam.

show abstract

Lanthanum Influence onEuAlO3Perovskite Structural Properties: Experimental and Molecular Dynamics Studies

Cited by 3 publications

References 16 publications

Plutonium and Americium Aluminate Perovskites

Plutonium and Americium Aluminate Perovskites

Exploring the potential of Eu³⁺ and Mn⁴⁺ activated LaAlO₃ phosphors as red and far-red emitters for horticulture lighting

Real-Time Measurement of Ion Energies for Heavy Ions

Contact Info

Product

Resources

About

Lanthanum Influence onEuAlO3Perovskite Structural Properties: Experimental and Molecular Dynamics Studies

Cited by 3 publications

References 16 publications

Plutonium and Americium Aluminate Perovskites

Plutonium and Americium Aluminate Perovskites

Exploring the potential of Eu3+ and Mn4+ activated LaAlO3 phosphors as red and far-red emitters for horticulture lighting

Real-Time Measurement of Ion Energies for Heavy Ions

Contact Info

Product

Resources

About

Exploring the potential of Eu³⁺ and Mn⁴⁺ activated LaAlO₃ phosphors as red and far-red emitters for horticulture lighting