Thermal analysis as a tool for studying

N. M. RENDTORFF G. SUAREZ E.F. AGLIETTI

Thermal Analysis Applied to Complex Systems: Slags, Glasses and Ceramics

Transworld Research Network

Año: 2013; p. 1 - 32

Abstract. Thermal analysis in general is a conjunction of many techniques and it can be used for many applications. Thermogravimetric and differential thermal Analysis, dilatometric measurements, plastic deformation under pressure, calorimetric measurements, etc. are some examples and each of them. Some of these techniques can be used for an alternative analysis and it is possible to obtain results and information very useful for materials study. Thermal analysis techniques, especially dilatometric test showed to be a useful technique for studying zirconia containing composites. The influence of the martensitic transformation (m-t) of well dispersed Zirconia grains in ceramic composite on the thermal expansion behavior was analyzed. A hysteresis loop was observed in the reversible dilatometric curve of composites with enough Zirconia grains (¡Ý10 %vol.). In addition, the loop area can also be used to estimate the monoclinic Zirconia content in these composites. The transformation temperature was evaluated and correlated with the Zirconia content. The transformation temperatures measured by DTA resulted more reliable than the ones detected by the dilatometric analysis. addition, the loop area can also be used to estimate the monoclinic Zirconia content in these composites. The transformation temperature was evaluated and correlated with the Zirconia content. The transformation temperatures measured by DTA resulted more reliable than the ones detected by the dilatometric analysis. techniques and it can be used for many applications. Thermogravimetric and differential thermal Analysis, dilatometric measurements, plastic deformation under pressure, calorimetric measurements, etc. are some examples and each of them. Some of these techniques can be used for an alternative analysis and it is possible to obtain results and information very useful for materials study. Thermal analysis techniques, especially dilatometric test showed to be a useful technique for studying zirconia containing composites. The influence of the martensitic transformation (m-t) of well dispersed Zirconia grains in ceramic composite on the thermal expansion behavior was analyzed. A hysteresis loop was observed in the reversible dilatometric curve of composites with enough Zirconia grains (¡Ý10 %vol.). In addition, the loop area can also be used to estimate the monoclinic Zirconia content in these composites. The transformation temperature was evaluated and correlated with the Zirconia content. The transformation temperatures measured by DTA resulted more reliable than the ones detected by the dilatometric analysis. addition, the loop area can also be used to estimate the monoclinic Zirconia content in these composites. The transformation temperature was evaluated and correlated with the Zirconia content. The transformation temperatures measured by DTA resulted more reliable than the ones detected by the dilatometric analysis. Thermal analysis in general is a conjunction of many techniques and it can be used for many applications. Thermogravimetric and differential thermal Analysis, dilatometric measurements, plastic deformation under pressure, calorimetric measurements, etc. are some examples and each of them. Some of these techniques can be used for an alternative analysis and it is possible to obtain results and information very useful for materials study. Thermal analysis techniques, especially dilatometric test showed to be a useful technique for studying zirconia containing composites. The influence of the martensitic transformation (m-t) of well dispersed Zirconia grains in ceramic composite on the thermal expansion behavior was analyzed. A hysteresis loop was observed in the reversible dilatometric curve of composites with enough Zirconia grains (¡Ý10 %vol.). In addition, the loop area can also be used to estimate the monoclinic Zirconia content in these composites. The transformation temperature was evaluated and correlated with the Zirconia content. The transformation temperatures measured by DTA resulted more reliable than the ones detected by the dilatometric analysis. addition, the loop area can also be used to estimate the monoclinic Zirconia content in these composites. The transformation temperature was evaluated and correlated with the Zirconia content. The transformation temperatures measured by DTA resulted more reliable than the ones detected by the dilatometric analysis. ¡Ý10 %vol.). In addition, the loop area can also be used to estimate the monoclinic Zirconia content in these composites. The transformation temperature was evaluated and correlated with the Zirconia content. The transformation temperatures measured by DTA resulted more reliable than the ones detected by the dilatometric analysis.