Radiographic and spectroscopic studies of X-pinch plasma implosion dynamics and x-ray burst emission characteristics

2001 ◽  
Vol 8 (4) ◽  
pp. 1305 ◽  
Author(s):  
T. A. Shelkovenko ◽  
D. B. Sinars ◽  
S. A. Pikuz ◽  
D. A. Hammer
2004 ◽  
Vol 19 (9) ◽  
pp. 2714-2718 ◽  
Author(s):  
Kai Zhang ◽  
A.K. Pradhan ◽  
G.B. Loutts ◽  
U.N. Roy ◽  
Y. Cui ◽  
...  

Europium-doped lutetium oxide (Lu2O3:Eu3+) nanophosphors were synthesized via modified combustion technique using urea as the fuel and metal nitrates as oxidants. The pellets prepared from the calcined nanocrystalline powders were vacuum sintered up to 1750 °C leading to very translucent ceramic. The products were characterized by x-ray diffraction to ascertain phase purity. The microstructures reveal the nanocrystalline nature of the powders. We have illustrated the crystallite size dependence and the influence of Eu3+ activation of Lu2O3:Eu3+ nanophosphors on Raman scattering. We have also demonstrated the particle size dependence of emission characteristics of nanophosphors and ceramics. Our results suggest that although the processed ceramics display superior emission characteristics, the nanocrystalline phosphor powders calcined at 1100 °C also display reasonably good emission characteristics, illustrating the possibility of their applications in display technology.


Author(s):  
Milene Lopes Silva ◽  
Róbson Ricardo Teixeira ◽  
Fabrício Marques Oliveira ◽  
Luciano Moura Guimarães ◽  
Felipe Terra Martins
Keyword(s):  

2007 ◽  
Vol 46 (19) ◽  
pp. 7742-7748 ◽  
Author(s):  
Ingmar Persson ◽  
Emiliana Damian Risberg ◽  
Paola D'Angelo ◽  
Simone De Panfilis ◽  
Magnus Sandström ◽  
...  

2009 ◽  
Vol 355 (37-42) ◽  
pp. 1836-1839 ◽  
Author(s):  
Ramakanta Naik ◽  
K.V. Adarsh ◽  
R. Ganesan ◽  
K.S. Sangunni ◽  
S. Kokenyesi ◽  
...  
Keyword(s):  

1994 ◽  
Vol 29 (12) ◽  
pp. 3269-3273 ◽  
Author(s):  
E. Wolska ◽  
J. Šubrt ◽  
Z. Hába ◽  
J. Tláskal ◽  
U. Schwertmann

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3920
Author(s):  
Martin Weber ◽  
Gábor Balázs ◽  
Alexander V. Virovets ◽  
Eugenia Peresypkina ◽  
Manfred Scheer

By reacting [{Cp‴Fe(CO)2}2(µ,η1:1-P4)] (1) with in situ generated phosphenium ions [Ph2P][A] ([A]− = [OTf]− = [O3SCF3]−, [PF6]−), a mixture of two main products of the composition [{Cp‴Fe(CO)2}2(µ,η1:1-P5(C6H5)2)][PF6] (2a and 3a) could be identified by extensive 31P NMR spectroscopic studies at 193 K. Compound 3a was also characterized by X-ray diffraction analysis, showing the rarely observed bicyclo[2.1.0]pentaphosphapentane unit. At room temperature, the novel compound [{Cp‴Fe}(µ,η4:1-P5Ph2){Cp‴(CO)2Fe}][PF6] (4) is formed by decarbonylation. Reacting 1 with in situ generated diphenyl arsenium ions gives short-lived intermediates at 193 K which disproportionate at room temperature into tetraphenyldiarsine and [{Cp‴Fe(CO)2}4(µ4,η1:1:1:1-P8)][OTf]2 (5) containing a tetracyclo[3.3.0.02,7.03,6]octaphosphaoctane ligand.


Sign in / Sign up

Export Citation Format

Share Document