Abstract
Optimizing of internal gelation based on the sol-gel synthesis was carried out for manufacturing of plutonium-doped zirconia microspheres used as nuclear fuels. In the present study, cerium was used as a surrogate for plutonium. So far, the Er0.05Y0.1CexZr0.85-xO 1.925 (x = 0.0-0.2) microspheres were successfully sintered to suppress the rapid reaction such as the thermal decomposition of by-products such as ammonium nitrate and formaldehyde at the calcination process. However, some cracks and pores were still observed in the sintered microspheres. As a result, these sintered densities reached 71-86% TD. From the crystallographic point of view, the sintered zirconia microspheres had the cubic fluorite structure and well formed the solid-solution oxide. The lattice constant of cubic zirconia increased with the amount of doped ceria.
| Original language | English |
|---|---|
| Pages (from-to) | 271-276 |
| Number of pages | 6 |
| Journal | Journal of Alloys and Compounds |
| Volume | 394 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - May 17 2005 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Cite this
Application of internal gelation to sol-gel synthesis of ceria-doped zirconia microspheres as nuclear fuel analogous materials. / Arima, Tatsumi; Idemitsu, Kazuya; Yamahira, Kazuhiro; Torikai, Satoshi; Inagaki, Yaohiro.
In: Journal of Alloys and Compounds, Vol. 394, No. 1-2, 17.05.2005, p. 271-276.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Application of internal gelation to sol-gel synthesis of ceria-doped zirconia microspheres as nuclear fuel analogous materials
AU - Arima, Tatsumi
AU - Idemitsu, Kazuya
AU - Yamahira, Kazuhiro
AU - Torikai, Satoshi
AU - Inagaki, Yaohiro
PY - 2005/5/17
Y1 - 2005/5/17
N2 - Optimizing of internal gelation based on the sol-gel synthesis was carried out for manufacturing of plutonium-doped zirconia microspheres used as nuclear fuels. In the present study, cerium was used as a surrogate for plutonium. So far, the Er0.05Y0.1CexZr0.85-xO 1.925 (x = 0.0-0.2) microspheres were successfully sintered to suppress the rapid reaction such as the thermal decomposition of by-products such as ammonium nitrate and formaldehyde at the calcination process. However, some cracks and pores were still observed in the sintered microspheres. As a result, these sintered densities reached 71-86% TD. From the crystallographic point of view, the sintered zirconia microspheres had the cubic fluorite structure and well formed the solid-solution oxide. The lattice constant of cubic zirconia increased with the amount of doped ceria.
AB - Optimizing of internal gelation based on the sol-gel synthesis was carried out for manufacturing of plutonium-doped zirconia microspheres used as nuclear fuels. In the present study, cerium was used as a surrogate for plutonium. So far, the Er0.05Y0.1CexZr0.85-xO 1.925 (x = 0.0-0.2) microspheres were successfully sintered to suppress the rapid reaction such as the thermal decomposition of by-products such as ammonium nitrate and formaldehyde at the calcination process. However, some cracks and pores were still observed in the sintered microspheres. As a result, these sintered densities reached 71-86% TD. From the crystallographic point of view, the sintered zirconia microspheres had the cubic fluorite structure and well formed the solid-solution oxide. The lattice constant of cubic zirconia increased with the amount of doped ceria.
UR - http://www.scopus.com/inward/record.url?scp=17644393518&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=17644393518&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2004.10.040
DO - 10.1016/j.jallcom.2004.10.040
M3 - Article
VL - 394
SP - 271
EP - 276
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 1-2
ER -