Torralba, José Manuel

Link to this page

http://dais.sanu.ac.rs/APP/faces/author.xhtml?author_id=4c5b1834-902c-47a8-9b4c-ea6e2f766213&item_offset=0&project_offset=0&sort_by=dc.date.issued
Authority KeyName Variants
4c5b1834-902c-47a8-9b4c-ea6e2f766213
  • Torralba, José Manuel (1)
Projects
No records found.

Author's Bibliography

Gd2O3:Eu System: Structural Study of the Influence of Luminescence Center Concentration

Rabanal, Maria Eugenia; Gómez, Luz Stella; Khalifa, A.; Mančić, Lidija; Milošević, Olivera; Torralba, José Manuel

(Zurich : Trans Tech Publications, 2007) 

TY  - CONF
AU  - Rabanal, Maria Eugenia
AU  - Gómez, Luz Stella
AU  - Khalifa, A.
AU  - Mančić, Lidija
AU  - Milošević, Olivera
AU  - Torralba, José Manuel
PY  - 2007
UR  - https://www.scientific.net/MSF.534-536.1393
UR  - https://dais.sanu.ac.rs/123456789/15268
AB  - In this paper, the influence of the Eu3+ center concentration on the structural and morphological properties of the Gd2O3 system obtained by Spray Pyrolysis have been studied. The processing route includes aerosol formation by means of ultrasonic device (resonant frequency ranging of 2.1MHz) from common gadolinium and europium nitrate solutions and control over the process of the aerosol decomposition in a medium-temperature (700°C). During the process, spherical, solid, agglomerate-free, submicronic particles with a mean particle size below 800nm and with the crystallite sizes below 20nm were obtained. In order to control the particles crystal structure and to establish the conditions for the stabilization of the low-temperature gadolinia cubic phase, the process parameters like temperature distribution, gas flow rate and annealing temperatures were adopted. The nanoparticle morphology, crystalline and chemical structure were studied by XRD, SEM and EDS. TEM has been applied in order to characterize this system. The low magnification bright field images permit to identify the structure and the growth "small primary nanoparticles" through the collision/coalescence mechanisms. HRTEM permits to determine the presence of domains locally affected by "Moires Frames" and "Crystallite Size". The selected electron diffraction patterns area allow determining the presence of a polycrystalline material with two phases in the "as-prepared" samples, and only a Ia3 phase along the thermal treatment. The obtained results and the mechanisms of ultrafine phosphor particles generation were discussed in terms of precursor chemistry, process parameters and structural characteristic.
PB  - Zurich : Trans Tech Publications
C3  - Progress n Powder Metallurgy
T1  - Gd2O3:Eu System: Structural Study of the Influence of Luminescence Center Concentration
SP  - 1393
EP  - 1396
DO  - 10.4028/www.scientific.net/MSF.534-536.1393
UR  - https://hdl.handle.net/21.15107/rcub_dais_15268
ER  - 
@conference{
author = "Rabanal, Maria Eugenia and Gómez, Luz Stella and Khalifa, A. and Mančić, Lidija and Milošević, Olivera and Torralba, José Manuel",
year = "2007",
abstract = "In this paper, the influence of the Eu3+ center concentration on the structural and morphological properties of the Gd2O3 system obtained by Spray Pyrolysis have been studied. The processing route includes aerosol formation by means of ultrasonic device (resonant frequency ranging of 2.1MHz) from common gadolinium and europium nitrate solutions and control over the process of the aerosol decomposition in a medium-temperature (700°C). During the process, spherical, solid, agglomerate-free, submicronic particles with a mean particle size below 800nm and with the crystallite sizes below 20nm were obtained. In order to control the particles crystal structure and to establish the conditions for the stabilization of the low-temperature gadolinia cubic phase, the process parameters like temperature distribution, gas flow rate and annealing temperatures were adopted. The nanoparticle morphology, crystalline and chemical structure were studied by XRD, SEM and EDS. TEM has been applied in order to characterize this system. The low magnification bright field images permit to identify the structure and the growth "small primary nanoparticles" through the collision/coalescence mechanisms. HRTEM permits to determine the presence of domains locally affected by "Moires Frames" and "Crystallite Size". The selected electron diffraction patterns area allow determining the presence of a polycrystalline material with two phases in the "as-prepared" samples, and only a Ia3 phase along the thermal treatment. The obtained results and the mechanisms of ultrafine phosphor particles generation were discussed in terms of precursor chemistry, process parameters and structural characteristic.",
publisher = "Zurich : Trans Tech Publications",
journal = "Progress n Powder Metallurgy",
title = "Gd2O3:Eu System: Structural Study of the Influence of Luminescence Center Concentration",
pages = "1393-1396",
doi = "10.4028/www.scientific.net/MSF.534-536.1393",
url = "https://hdl.handle.net/21.15107/rcub_dais_15268"
}
Rabanal, M. E., Gómez, L. S., Khalifa, A., Mančić, L., Milošević, O.,& Torralba, J. M.. (2007). Gd2O3:Eu System: Structural Study of the Influence of Luminescence Center Concentration. in Progress n Powder Metallurgy
Zurich : Trans Tech Publications., 1393-1396.
https://doi.org/10.4028/www.scientific.net/MSF.534-536.1393
https://hdl.handle.net/21.15107/rcub_dais_15268
Rabanal ME, Gómez LS, Khalifa A, Mančić L, Milošević O, Torralba JM. Gd2O3:Eu System: Structural Study of the Influence of Luminescence Center Concentration. in Progress n Powder Metallurgy. 2007;:1393-1396.
doi:10.4028/www.scientific.net/MSF.534-536.1393
https://hdl.handle.net/21.15107/rcub_dais_15268 .
Rabanal, Maria Eugenia, Gómez, Luz Stella, Khalifa, A., Mančić, Lidija, Milošević, Olivera, Torralba, José Manuel, "Gd2O3:Eu System: Structural Study of the Influence of Luminescence Center Concentration" in Progress n Powder Metallurgy (2007):1393-1396,
https://doi.org/10.4028/www.scientific.net/MSF.534-536.1393 .,
https://hdl.handle.net/21.15107/rcub_dais_15268 .
1