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Title: Synthesis of Cr-doped CaTiSiO{sub 5} ceramic pigments by spray drying

Abstract

Cr-doped CaTiSiO{sub 5} was synthesized by spray drying and conventional ceramic method in order to assess its potential as ceramic pigment. The evolution of the phase composition with thermal treatment was investigated by X-ray powder diffraction (XRPD) and thermal analyses (DTA-TGA-EGA). Powder morphology and particle size distribution were analyzed by scanning electron microscopy (SEM) and laser diffraction, respectively. The color efficiency of pigments was evaluated by optical spectroscopy (UV-vis-NIR) and colorimetric analysis (CIE Lab). Results proved that spray drying is an efficient procedure to prepare highly reactive pigment precursors. The spray-dried powders consist of hollow spherical particles with aggregate size in the 1-10 {mu}m range, developing a brown coloration. Optical spectra reveal the occurrence of Cr(III) and Cr(IV), both responsible for the brown color of this pigment. The former occupies the octahedral site of titanite, in substitution of Ti(IV), while the latter is located at the tetrahedral site, where replaces Si(IV)

Authors:
; ;  [1];  [2];  [3]
  1. Institute of Science and Technology for Ceramics, ISTEC-CNR, via Granarolo 64, 48018 Faenza (Italy)
  2. Materials Science Institute of Seville, c/Americo Vespucio, 49, 41092 Sevilla (Spain)
  3. University Jaume I, Campus del Riu Sec, 12071 Castellon de la Plana (Spain)
Publication Date:
OSTI Identifier:
21199745
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 44; Journal Issue: 4; Other Information: DOI: 10.1016/j.materresbull.2008.08.009; PII: S0025-5408(08)00278-X; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CALCIUM COMPOUNDS; CERAMICS; DIFFERENTIAL THERMAL ANALYSIS; DOPED MATERIALS; HEAT TREATMENTS; MORPHOLOGY; OXIDES; PARTICLE SIZE; PIGMENTS; POWDERS; SCANNING ELECTRON MICROSCOPY; SILICON COMPOUNDS; SPECTROSCOPY; SPHERICAL CONFIGURATION; SPRAY DRYING; SYNTHESIS; THERMAL GRAVIMETRIC ANALYSIS; TITANITE; TITANIUM COMPOUNDS; X-RAY DIFFRACTION

Citation Formats

Lyubenova, T. Stoyanova, Matteucci, F, Costa, A L, Dondi, M, Ocana, M, and Carda, J. Synthesis of Cr-doped CaTiSiO{sub 5} ceramic pigments by spray drying. United States: N. p., 2009. Web. doi:10.1016/j.materresbull.2008.08.009.
Lyubenova, T. Stoyanova, Matteucci, F, Costa, A L, Dondi, M, Ocana, M, & Carda, J. Synthesis of Cr-doped CaTiSiO{sub 5} ceramic pigments by spray drying. United States. https://doi.org/10.1016/j.materresbull.2008.08.009
Lyubenova, T. Stoyanova, Matteucci, F, Costa, A L, Dondi, M, Ocana, M, and Carda, J. 2009. "Synthesis of Cr-doped CaTiSiO{sub 5} ceramic pigments by spray drying". United States. https://doi.org/10.1016/j.materresbull.2008.08.009.
@article{osti_21199745,
title = {Synthesis of Cr-doped CaTiSiO{sub 5} ceramic pigments by spray drying},
author = {Lyubenova, T. Stoyanova and Matteucci, F and Costa, A L and Dondi, M and Ocana, M and Carda, J},
abstractNote = {Cr-doped CaTiSiO{sub 5} was synthesized by spray drying and conventional ceramic method in order to assess its potential as ceramic pigment. The evolution of the phase composition with thermal treatment was investigated by X-ray powder diffraction (XRPD) and thermal analyses (DTA-TGA-EGA). Powder morphology and particle size distribution were analyzed by scanning electron microscopy (SEM) and laser diffraction, respectively. The color efficiency of pigments was evaluated by optical spectroscopy (UV-vis-NIR) and colorimetric analysis (CIE Lab). Results proved that spray drying is an efficient procedure to prepare highly reactive pigment precursors. The spray-dried powders consist of hollow spherical particles with aggregate size in the 1-10 {mu}m range, developing a brown coloration. Optical spectra reveal the occurrence of Cr(III) and Cr(IV), both responsible for the brown color of this pigment. The former occupies the octahedral site of titanite, in substitution of Ti(IV), while the latter is located at the tetrahedral site, where replaces Si(IV)},
doi = {10.1016/j.materresbull.2008.08.009},
url = {https://www.osti.gov/biblio/21199745}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 4,
volume = 44,
place = {United States},
year = {Thu Apr 02 00:00:00 EDT 2009},
month = {Thu Apr 02 00:00:00 EDT 2009}
}