Study constructed a master sintering curve for La2Ti2O7 ceramics, suggesting insights into densification behavior.
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, La_2Ti_2O_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 La_2Ti_2O_7 powders synthesised by the solid-state method.
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Kambale et al. (2026) studied this question.
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