Low scan rate DSC study of the monoclinic-tetragonal transition in zirconia

Lega, Daniela; Antonini, Alessandra; Ciccioli, A.; Brutti, Sergio; Lenzuni, Paolo

doi:10.1016/j.tca.2011.06.004

Cited by 9 publications

(3 citation statements)

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“…There are several examples transitions taking place in a certain temperature range, what is manifested by the appearance of more than one thermal effect on the DTA/ DSC curves. [42][43][44][45] The course of changes taking place during cooling of samples with x < 0.50 is well illustrated by the microstructure of molten and cooled to the room temperature sample with a 20 mol% of CePO 4 (Fig. 7).…”

Section: Discussionmentioning

confidence: 93%

“…Due to the complexity of crystallization processes and the fact that the thermal experiments are not carried out in strict equilibrium conditions, more than one thermal effect may appear on heating DTA/DSC curves. There are several examples transitions taking place in a certain temperature range, what is manifested by the appearance of more than one thermal effect on the DTA/DSC curves …”

Section: Discussionmentioning

confidence: 99%

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Phase Relationships in the Tricalcium Phosphate—Cerium Phosphate System. Thermal behavior of Phases Present in the System

Matraszek

Szczygieł

2012

J. Am. Ceram. Soc.

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A diagram representing the phase relationships in the Ca3(PO4)2–CePO4 phosphate system has been developed on the basis of results obtained using thermal analysis (DTA/DSC/TG), X‐ray diffraction (XRD), and scanning electron microscopy (SEM/EDS) methods. One intermediate compound with formula Ca3Ce(PO4)3 occurs in the Ca3(PO4)2–CePO4 system at temperature exceeding 1275°C. The compound melts at 1833°C and has one structural form. In the system a solid solution, having the structure of low‐temperature form of calcium phosphate Ca3−3xCex(PO4)2−x (where x is a molar fraction of CePO4), exists. The temperature and concentration range of the solid solution has been determined. It has been shown that the Ca9Ce(PO4)7 phase should be understood as a limited solid solution with x = 0.25.

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Phase Relationships in the Tricalcium Phosphate—Cerium Phosphate System. Thermal behavior of Phases Present in the System

Matraszek

Szczygieł

2012

J. Am. Ceram. Soc.

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“…8 ), and it can be seen that the DSC curve of PcBN with 5 wt% YSZ added shows a heat-absorbing phase transition peak at 1300 °C compared to the specimen without YSZ, which represents the phase transition from m-ZrO 2 to t-ZrO 2 , indicating the material body the presence of internal m-ZrO 2 phase, which is produced by the transformation of sub-stable t-ZrO 2 inside the specimen body by stress during fracture. 33 Meanwhile, the presence of microcracks inside the material body can be observed in Fig. 7d , which is also produced by the volume effect occurring in ZrO 2 during the phase transformation.…”

Section: Resultsmentioning

confidence: 89%