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Title: Effect of rare earth Ce on the far infrared radiation property of iron ore tailings ceramics

Highlights: • Detailed process proposed for preparation of iron ore tailings ceramics. • Replace natural minerals with iron ore tailings as raw materials for preparing functional ceramics. • Impact mechanism of Ce on far infrared ceramics, as well as its optimum addition amounts can be obtained. • Propose a new perspective on considering the mechanism of far infrared radiation. - Abstract: A kind of far infrared radiation ceramics was prepared by using iron ore tailings, CaCO{sub 3} and SiO{sub 2} as main raw materials, and Ce as additive. The result of Fourier transform infrared spectroscopy showed that the sample exhibits excellent radiation value of 0.914 when doping 7 wt.% Ce. Ce{sup 4+} dissolved into iron diopside and formed interstitial solid solution with it sintered at 1150 °C. The oxidation of Fe{sup 2+} to Fe{sup 3+} caused by Ce{sup 4+} led to a decrease of crystallite sizes and enhancement of Mg–O and Fe–O vibration in iron diopside, which consequently improved the far infrared radiation properties of iron ore tailings ceramics.
Authors:
 [1] ;  [2] ;  [1] ;  [2] ; ;  [1] ;  [2] ;  [3] ;  [1] ;  [2]
  1. Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130 (China)
  2. (China)
  3. Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130 (China)
Publication Date:
OSTI Identifier:
22475783
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 66; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTROSCOPY; ADDITIVES; CALCIUM CARBONATES; CERAMICS; CERIUM ADDITIONS; DIOPSIDE; FAR INFRARED RADIATION; FOURIER TRANSFORM SPECTROMETERS; INFRARED SPECTRA; IRON IONS; IRON ORES; MICROSTRUCTURE; OXIDATION; RARE EARTHS; SILICON OXIDES; SOLID SOLUTIONS; TAILINGS