Login for students

Login for employees

Publication detail

The Influence of Concentration of Doping Elements on Anatase-Rutile Transformation at the Synthesis of Rutile Pigments (Ti,Cr,Nb)O2 and their Pigmentary Properties
Year: 2014
Type of publication: článek v odborném periodiku
Name of source: Journal of Thermal Analysis and Calorimetry
Publisher name: Springer
Page from-to: 547-555
Titles:
Language Name Abstract Keywords
cze Vliv množství dopujících prvků na přeměnu anatasu na rutil při syntéze rutilových pigmentů (Ti,Cr,Nb)O2 a jejich barevné vlastnosti Hlavním cílem bylo analyzovat reakční směsi o x = 0,05 (předchozí práce) a 0,30 simultánní TG-DTA analýzou a určit teplotu přeměny anatasu na rutil. Počáteční teploty jsou 760 – 830 °C pro x = 0,05 a 910 – 1030 °C pro x = 0,30. Rutilové pigmenty;přeměna anatasu na rutil;simultánní TG-DTA analýza;rentgenová difrakce;barevné vlastnosti;distribuce velikosti částic
eng The Influence of Concentration of Doping Elements on Anatase-Rutile Transformation at the Synthesis of Rutile Pigments (Ti,Cr,Nb)O2 and their Pigmentary Properties An analysis of the effects of dopants concentration and different starting titanium compounds on the anatase to rutile phase transformation at the synthesis of rutile pigments Ti1-3xCrxNb2xO2 +/-delta is presented in this study. The main goal was to analyze reaction mixtures for x = 0.05 (previous study) and 0.30 by simultaneous TG-DTA analysis and to determine the temperature of anatase-rutile transition. For x = 0.05, initial temperatures 760-830 A degrees C are needful for a formation of rutile structure. The temperature is the lowest for the hydrated Na2Ti4O9 paste (760 A degrees C) and similar for other starting compounds of titanium. But for x = 0.30, the anatase-rutile transition begins at higher temperatures 910-1,030 A degrees C because of high-Nb content, which is the inhibitor of this modification change. In addition, we found the influence of calcination temperatures (850, 900, 950, 1000, 1050, 1100, and 1150 A degrees C) on color properties and particle size distribution of these materials prepared from anatase TiO2 and with x = 0.30. Selected pigments were also analyzed by X-ray powder diffraction. Rutile Pigments;Anatase–Rutile Transformation;Simultaneous TG-DTA Analysis;X-ray Powder Diffraction;Color Properties;Particle Size Distribution

Departments

Other Parts

Map

en.mapy.cz

Services

Popular Links

© 2023 University of Pardubice, Studentská 95, 532 10 Pardubice 2
Phone: +420 466 036 111, 466 036 112, 466 036 113
Webmaster, RSS
Data box ID: f5vj9hu
Accessibility Statement
CC BY-NC-ND 4.0Creative CommonsAttributionNonCommercialNoDerivatives