TY  - GEN
AU  - Селюнина,Лилия Александровна
AU  - Брославская,Татьяна Владимировна
AU  - Мишенина,Людмила Николаевна
TI  - Золь-гель синтез люминесцентного материала на основе алюмината кальция Сa12Al14O33:Eu, Nd
KW  - золь-гель синтез
KW  - алюминат кальция
KW  - люминофоры
KW  - люминесцентные материалы
KW  - статьи в сборниках
N1  - Библиогр.: 5 назв
N2  - Сalcium aluminate Ca12Al14O33 and phosphors based on it were obtained using sol-gel technology. Complex studies
were used to identify the dynamics of phase and structural transformations in the synthesis of Ca12Al14O33. The main
 stages of the calcium aluminate formation were determined using thermal analysis, IR spectroscopy and X-ray phase
 analysis. Solid-phase interaction in the formation of Ca12Al14O33 includes the steps of obtaining calcium carbonate and
 amorphous alumina (800 °C), aluminates of composition Ca3Al2O6 and CaAl2O4 (900–1000 °C), Ca5Al6O14 and
 Ca4Al6O13 (1000–1100 °C). Ca12Al14O33 begins to form at 1100 °C. The graphic image of the structure was constructed
 according to the obtained atomic coordinates using the ReX Powder diffraction program. Luminescent properties of the phosphors of the composition Ca12-(0,05+x)Al14O33 : NdxEu0,05 (x = 0,025–0,1) were investigated. It was determined that
 the highest intensity of luminescence is achieved at x = 0,05. With a further increase in the content of neodyum, there
 was a concentration quenching of the luminescence
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ER  -