X-ray diffraction from levitated liquid yttrium oxide

Journal Article · Wed Jul 01 04:00:00 EDT 1998 · Journal of the American Ceramic Society

DOI:https://doi.org/10.1111/j.1151-2916.1998.tb02578.x· OSTI ID:638374

Krishnan, S ^[1]; Ansell, S; Price, D L ^[2]

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1. Containerless Research, Inc., Evanston, IL (United States)
2. Argonne National Lab., IL (United States)

The authors report the first measurements of the structure factor, S(Q), and radial distribution function, G(r), of yttrium oxide in the normal and supercooled liquid states in the temperature range 2,500--3,100 K. Measurements were obtained by synchrotron X-ray scattering on levitated, laser-heated liquid specimens. At temperatures far in excess of the melting point, the first and second coordination shells begin to merge, indicative of increased ionicity in the liquid. As the temperature is lowered into the supercooled region, there is substantial sharpening and strengthening in the first peaks in both S(Q) and G(r). Supercooling causes a decrease in the first shell coordination and Q values together with an increase in the Y-O interionic distance.

• Sponsoring Organization: USDOE
• OSTI ID: 638374
• Journal Information: Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 7 Vol. 81; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
EXPERIMENTAL DATA
LEVITATION
LIQUIDS
PHASE STUDIES
TEMPERATURE RANGE 1000-4000 K
X-RAY DIFFRACTION
YTTRIUM OXIDES