Determination of the oxygen self-diffusion coefficients in Y[sub 2]O[sub 3]-containing tetragonal zirconia polycrystals by Raman spectrometric monitoring of the [sup 16]O-[sup 18]O exchange reaction

Journal Article · Sun Aug 01 04:00:00 EDT 1993 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1993.tb08345.x· OSTI ID:6254893

Kim, Byung Kook; Hamaguchi, Hiroo ^[1]; Park, Soonja ^[2]

---

1. Kanagawa Academy of Science and Technology, Kanagawa (Japan). Molecular Spectroscopy Lab.
2. Seoul National Univ., Seoul (Korea, Republic of)

A new method of determining the oxygen self-diffusion coefficients (D) in oxides has been developed. The method is based on Raman spectroscopy combined with the [sup 16]O-[sup 18]O exchange technique. By using the time dependent [sup 18]O[sub 2] concentration measured in a quasi in situ manner by Raman spectroscopy, the oxygen self-diffusion coefficients are calculated. The calculation takes into account the influence of the surface exchange reaction and the limited gas volume. The result obtained in 2.8 mol% Y[sub 2]O[sub 3]-containing tetragonal zirconia polycrystals is D = 1.55 ([sub [minus]0.07][sup +0.07]) [times] 10[sup [minus]2] exp [([minus]120.0 [plus minus] 0.4) (kJ/mol)/RT] cm[sup 2]/sec. It was demonstrated that Raman spectroscopy is a useful tool for determining the oxygen self-diffusion coefficients in oxides.

• OSTI ID: 6254893
• Journal Information: Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 76:8; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CHALCOGENIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
DIFFUSION
DOPED MATERIALS
ELEMENTS
EVEN-EVEN NUCLEI
ISOTOPES
ISOTOPIC EXCHANGE
LASER SPECTROSCOPY
LIGHT NUCLEI
MATERIALS
NONMETALS
NUCLEI
OXIDES
OXYGEN
OXYGEN 16
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
PHASE STUDIES
POLYCRYSTALS
RAMAN SPECTRA
RAMAN SPECTROSCOPY
SELF-DIFFUSION
SPECTRA
SPECTROSCOPY
STABLE ISOTOPES
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES