Master sintering curve and microstructure evolution of perovskite layer structured $ \mathrm{La_2}\mathrm{Ti_2}\mathrm{O_7} $ ceramics
Abstract
The master sintering curve (MSC) theory is one of the widely used theories to predict the densification behaviour of a given powder and green body irrespective of its thermal history. In this paper, MSC was constructed for a high Curie temperature piezoelectric, \mathrm{La_2}\mathrm{Ti_2}\mathrm{O_7} . Powder synthesis was carried out by the solid state reaction method, followed by uniaxial pressing to obtain green compacts. Dilatometric shrinkage study of green compacts was carried out up to 1450°C with heating rates of 5, 10 and 15°C/min. The apparent activation energy of sintering was found to be 1027 kJ/mol. The results of the present study can be used to predict the densification level obtained during pressureless sintering of the \mathrm{La_2}\mathrm{Ti_2}\mathrm{O_7} powders synthesised by the solid-state method.
Fields of Study & Subjects
Ferroelectric and Piezoelectric Materials
Microwave Dielectric Ceramics Synthesis
Dielectric properties of ceramics
Publication details
- Journal / source
- Processing and Application of Ceramics
- Publisher
- National Library of Serbia
- Volume
- 20
- Issue
- 1
- Pages
- 23–29
- Publication date
- 1 January 2026
- Language
- EN