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Spontaneous long and short-range ferroelectric ordering in Pb(0.55)La(0.30)TiO(3) ceramics
(AMER INST PHYSICS, 2010)
In this work, we investigated the temperature dependence of short and long-range ferroelectric ordering in Pb(0.55)La(0.30)TiO(3) relaxor composition. High-resolution x-ray powder diffraction measurements revealed a clear ...
IR-visible upconversion and thermal effects in Pr3+/Yb3+-codoped Ga2O3 : La2S3 chalcogenide glasses
(Iop Publishing Ltd, 2000-12-04)
IR-visible upconversion fluorescence spectroscopy and thermal effects in pr(3+)/Yb3+-codoped Ga2O3:La2S3 chalcogenide glasses excited at 1.064 mum is reported. Intense visible upconversion emission in the wavelength region ...
Studies on double selenates. I. Thermal decomposition of lanthanum and alkali metal double selenates
(1980-06-15)
Thermogravimetry, differential thermal analysis and other methods of analysis have been used to study the decomposition of hydrated lanthanum and alkali metal double selenates up to 1300°C. The results showed slight ...
Studies on double selenates. I. Thermal decomposition of lanthanum and alkali metal double selenates
(1980-06-15)
Thermogravimetry, differential thermal analysis and other methods of analysis have been used to study the decomposition of hydrated lanthanum and alkali metal double selenates up to 1300°C. The results showed slight ...
Catalyst formulation to avoid reaction runaway during diesel soot combustion
(Elsevier Science, 2009-10)
Soot combustion is a highly exothermic reaction. The aim of this work is to demonstrate that catalyst overheating by reaction runaway can be moderated by the proper selection of a catalyst support, La2O3 being a good choice ...