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Effect of MgO on thermal shock resistance of CaZrO3 ceramic.
- Source :
-
Ceramics International . Dec2018, Vol. 44 Issue 18, p22176-22180. 5p. - Publication Year :
- 2018
-
Abstract
- Abstract In order to improve the thermal shock resistance of CaZrO 3, CaZrO 3 was synthesized by a solid-state reaction method with analytical ZrO 2 and CaCO 3 as raw materials, and MgO as additive. The effects of MgO on Flexural strength at room temperature, thermal shock resistance, XRD and microstructure of CaZrO 3 were characterized. The results show that the grain growth of CaZrO 3 is inhibited and the thermal shock resistance of CaZrO 3 is improved by adding MgO. With the increasing of MgO, the flexural strength at room temperature of samples are improved due to the grain refinement. When the addition of MgO is 8%, the flexural strength at room temperature increases to 270.15 MPa. The thermal shock resistance of samples are improved by MgO deflecting and bridging cracks. When the addition of MgO is 4%, the residual flexural strength of samples is the maximum (26.94 MPa). [ABSTRACT FROM AUTHOR]
- Subjects :
- *MAGNESIUM oxide
*THERMAL shock
*CERAMICS
*MICROSTRUCTURE
*FLEXURAL strength
Subjects
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 44
- Issue :
- 18
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 132690087
- Full Text :
- https://doi.org/10.1016/j.ceramint.2018.08.333