Details
| Original language | English |
|---|---|
| Title of host publication | Ceramics for Environmental and Energy Applications - A Collection of Papers Presented at the 8th Pacific Rim Conference on Ceramic and Glass Technology, PACRIM-8 |
| Pages | 71-78 |
| Number of pages | 8 |
| Publication status | Published - 29 Sept 2010 |
| Event | 8th Pacific Rim Conference on Ceramic and Glass Technology, PACRIM-8 - Vancouver, BC, Canada Duration: 31 May 2009 → 5 Jun 2009 |
Publication series
| Name | Ceramic Transactions |
|---|---|
| Volume | 217 |
| ISSN (Print) | 1042-1122 |
Abstract
Compositions in the new system Bi2(GaxAl 1-x)4O9 (x = 0, 0.1......1) having mullite-type structure were synthesized using precursor gels obtained from the solution of corresponding nitrates in glycerin. The effects of Ga/Al substitution were characterized by IR absorption spectroscopy and X-ray powder diffraction (XRD). The linear change in lattice parameters related on x indicate ideal solid solution behaviour. The splitting of the high frequency vibration mode in the mixed composition indicate the presence of Ga-Oc-Ga, Ga-O c-Al and Al-Oc-Al bonds, where Oc is the common oxygen of the double tetrahedral unit. 18O/16O isotope exchange experiments (at 800°C) show the extraordinary dominance of the Oc atom in this vibration. The relative absorption intensities of the M-18OcZM-16Oc vibrations used to estimate diffusion coefficient showing value of about 4*10-15 cm2/s and 1.1*10-18 cm2/s for Bi2Ga 4O9 and Bi2Al4O9, respectively.
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Materials Science(all)
- Materials Chemistry
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Ceramics for Environmental and Energy Applications - A Collection of Papers Presented at the 8th Pacific Rim Conference on Ceramic and Glass Technology, PACRIM-8. 2010. p. 71-78 (Ceramic Transactions; Vol. 217).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Synthesis and characterization in the new system bi2(al/ga) 4o9and18o/16o exchange experiments
AU - Debnath, T.
AU - Rüscher, C. H.
AU - Fielitz, P.
AU - Ohmann, S.
AU - Borchardt, G.
PY - 2010/9/29
Y1 - 2010/9/29
N2 - Compositions in the new system Bi2(GaxAl 1-x)4O9 (x = 0, 0.1......1) having mullite-type structure were synthesized using precursor gels obtained from the solution of corresponding nitrates in glycerin. The effects of Ga/Al substitution were characterized by IR absorption spectroscopy and X-ray powder diffraction (XRD). The linear change in lattice parameters related on x indicate ideal solid solution behaviour. The splitting of the high frequency vibration mode in the mixed composition indicate the presence of Ga-Oc-Ga, Ga-O c-Al and Al-Oc-Al bonds, where Oc is the common oxygen of the double tetrahedral unit. 18O/16O isotope exchange experiments (at 800°C) show the extraordinary dominance of the Oc atom in this vibration. The relative absorption intensities of the M-18OcZM-16Oc vibrations used to estimate diffusion coefficient showing value of about 4*10-15 cm2/s and 1.1*10-18 cm2/s for Bi2Ga 4O9 and Bi2Al4O9, respectively.
AB - Compositions in the new system Bi2(GaxAl 1-x)4O9 (x = 0, 0.1......1) having mullite-type structure were synthesized using precursor gels obtained from the solution of corresponding nitrates in glycerin. The effects of Ga/Al substitution were characterized by IR absorption spectroscopy and X-ray powder diffraction (XRD). The linear change in lattice parameters related on x indicate ideal solid solution behaviour. The splitting of the high frequency vibration mode in the mixed composition indicate the presence of Ga-Oc-Ga, Ga-O c-Al and Al-Oc-Al bonds, where Oc is the common oxygen of the double tetrahedral unit. 18O/16O isotope exchange experiments (at 800°C) show the extraordinary dominance of the Oc atom in this vibration. The relative absorption intensities of the M-18OcZM-16Oc vibrations used to estimate diffusion coefficient showing value of about 4*10-15 cm2/s and 1.1*10-18 cm2/s for Bi2Ga 4O9 and Bi2Al4O9, respectively.
UR - http://www.scopus.com/inward/record.url?scp=77955582462&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77955582462
SN - 9780470905470
T3 - Ceramic Transactions
SP - 71
EP - 78
BT - Ceramics for Environmental and Energy Applications - A Collection of Papers Presented at the 8th Pacific Rim Conference on Ceramic and Glass Technology, PACRIM-8
T2 - 8th Pacific Rim Conference on Ceramic and Glass Technology, PACRIM-8
Y2 - 31 May 2009 through 5 June 2009
ER -