Рубрики:
BI4-XRXTI3O12 R-X
HEAT-CAPACITY
AURIVILLIUS PHASES
PR
ND
BI4TI3O12
Кл.слова (ненормированные):
bismuth titanates -- solid-state synthesis -- crystal structure -- luminescence -- high-temperature heat capacity -- phase transition
BI4-XRXTI3O12 R-X
HEAT-CAPACITY
AURIVILLIUS PHASES
PR
ND
BI4TI3O12
Кл.слова (ненормированные):
bismuth titanates -- solid-state synthesis -- crystal structure -- luminescence -- high-temperature heat capacity -- phase transition
Аннотация: Bi4–xPrxTi3O12 (x = 0.4, 0.8, 1.2, 1.6) solid solutions have been prepared by solid-state reactions, via multistep firing of stoichiometric mixtures of their constituent oxides in air at temperatures from 1003 to 1323 K. Their crystal structure has been determined using X-ray diffraction, and their luminescence spectra have been measured at room temperature. High-temperature heat capacity of polycrystalline substituted bismuth titanate samples has been determined by differential scanning calorimetry. The Cp(T) curves of the solid solutions with x = 0.4 and 0.8 have extrema related to phase transitions. Experimental data have been used to calculate the main thermodynamic functions of the solid solutions.
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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Fed Res Ctr, Siberian Branch, Kirensky Inst Phys,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Baikov Inst Met & Mat Sci, Moscow 119991, Russia.
Доп.точки доступа:
Denisova, L. T.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Kargin, Yu F.; Gerasimov, V. P.; Герасимов, Виктор Петрович; Krylov, A. S.; Крылов, Александр Сергеевич; Aleksandrovskii, A. S.; Александровский, Александр Сергеевич; Chumilina, L. G.; Denisov, V. M.; Vasil'ev, G. V.; Васильев Г. В.