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Scientific paper - Original scientific paper
XRD and Laser Raman Spectroscopy Investigation of the Stability of Low Temperature t-ZrO2
Croatica Chemica Acta, 71 (1998), 3; 789-806. urn:nbn:hr:217:696168
Štefanić, Goran; Musić, Svetozar; Gržeta, Biserka; Popović, Stanko; Sekulić, Andreja

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Štefanić, G., Musić, S., Gržeta, B., Popović, S. & Sekulić, A. (1998). XRD and Laser Raman Spectroscopy Investigation of the Stability of Low Temperature t-ZrO2. Croatica Chemica Acta, 71. (3), 789-806. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:696168

Štefanić, Goran, et al. "XRD and Laser Raman Spectroscopy Investigation of the Stability of Low Temperature t-ZrO2." Croatica Chemica Acta, vol. 71, no. 3, 1998, pp. 789-806. https://urn.nsk.hr/urn:nbn:hr:217:696168

Štefanić, Goran, Svetozar Musić, Biserka Gržeta, Stanko Popović and Andreja Sekulić. "XRD and Laser Raman Spectroscopy Investigation of the Stability of Low Temperature t-ZrO2." Croatica Chemica Acta 71, no. 3 (1998): 789-806. https://urn.nsk.hr/urn:nbn:hr:217:696168

Štefanić, G., et al. (1998) 'XRD and Laser Raman Spectroscopy Investigation of the Stability of Low Temperature t-ZrO2', Croatica Chemica Acta, 71(3), pp. 789-806. Available at: https://urn.nsk.hr/urn:nbn:hr:217:696168 (Accessed 29 November 2024)

Štefanić G, Musić S, Gržeta B, Popović S, Sekulić A. XRD and Laser Raman Spectroscopy Investigation of the Stability of Low Temperature t-ZrO2. Croatica Chemica Acta [Internet]. 1998 [cited 2024 November 29];71(3):789-806. Available at: https://urn.nsk.hr/urn:nbn:hr:217:696168

G. Štefanić, S. Musić, B. Gržeta, S. Popović and A. Sekulić, "XRD and Laser Raman Spectroscopy Investigation of the Stability of Low Temperature t-ZrO2", Croatica Chemica Acta, vol. 71, no. 3, pp. 789-806, 1998. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:696168. [Accessed: 29 November 2024]

Metadata
Title (english)XRD and Laser Raman Spectroscopy Investigation of the Stability of Low Temperature t-ZrO2
AuthorGoran Štefanić
AuthorSvetozar Musić
AuthorBiserka Gržeta
AuthorStanko Popović
AuthorAndreja Sekulić
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
The influence of precipitation pH and the presence of Na+ impurities on the stability of metastable t-ZrO2 were investigated. Zirconia samples with a high t-ZrO2 phase content were crystallized from zirconium hydroxide precipitated at pH 13, 7 and 2.5. The obtained samples were subjected to the influence of temperature, pressure and gamma-irradiation. The influence of these treatments on the metastable t-ZrO2 were investigated using XRD and laser Raman spectroscopy. The results of phase analysis showed that the change in the pH of zirconium hydroxide precipitation significantly changed the sensitivity of the metastable t-ZrO2 to temperature and pressure. The metastable t-ZrO2 was most stable in the sample obtained from zirconium hydroxide precipitated at pH 2.5 and most unstable in the sample obtained from zirconium hydroxide precipitated at pH 7. The presence of Na+ impurities decreased the stability of metastable t-ZrO2. All the samples were shown to be stable under high gamma-irradiation. The capability of laser Raman spectroscopy for the quantitative analysis was examined by comparing the values of the m-ZrO2 volume fraction (num) obtained by this technique with the corresponding values obtained by XRD. It was concluded that the relation proposed by Clarke and Adar, J. Am. Ceram. Soc. 65 (1982) 284., was correct but the reliability of the num values estimated by the laser Raman spectroscopy was not high, especially in the region of 0.15 < num < 0.70. The reason for the low reliability in this region is discussed.
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleCroatica Chemica Acta
Numberingvol. 71, no. 3, pp. 789-806
p-ISSN0011-1643
e-ISSN1334-417X
URN:NBNurn:nbn:hr:217:696168
Publication1998
Document URLhttps://hrcak.srce.hr/132406
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2019-10-06 13:30:40