Physical properties of the Sr4Al6O12SO4 ceramic compound

J. A. Rodríguez-García, E. Rocha-Rangel*, J. López Hernández, C. A. Hernández Bocanegra, A. L. Leal Cruz, J. M. Almanza Robles, J. Torres Torres

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The Sr4Al6O12SO4 ceramic compound was synthesized by a solid state reaction starting from stoichiometric mixtures of 3: 3: 1 molar ratio of reactive grade of SrCO3, Al2O3 and SrSO4, respectively. Cylindrical samples were confirmed by uniaxial pressing at 100 MPa and were heat treated at 1400oC during 4 hrs. Subsequently, the samples were ground and re-conformed in cylindrical shape samples by uniaxial pressing at 300 MPa. The new samples were heat treated at 1400oC during 24 hrs. This process was done in order to increase density of the samples. The Sr4Al6O12SO4 ceramic compound was characterized by the study of its physical properties such as: density, micro-hardness, thermal expansion and stability, enthalpy of formation, magnetic properties and electrical conductivity. Experimental results show that the maximum density obtained for the Sr4Al6O12SO4 ceramic compound was 2.913 grcm−3, with thermal expansion coefficient of 10.12E−06(oC−1); it also presents an enthalpy of 2.3 KJmol-1 and an excellent thermal stability at elevated temperatures in different atmospheres. In addition, the Sr4Al6O12SO4 ceramic compound is neither electrically conductive nor magnetic.

Original languageEnglish
Pages (from-to)801-804
Number of pages4
JournalJournal of Ceramic Processing Research
Issue number11
StatePublished - 2017

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© 2017, Hanyang University. All rights reserved.


  • Ceramic materials
  • Physical properties
  • Solid state reactions
  • Strontium compound


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