The Effect of PVA-Al(III) Complex on Pore Formation and Grain Growth of $UO_2$ Sintered Pellet (II)

PVA-A(III) 착물이 $Uo_2$ 소결체의 기공형성과 결정립성장에 미치는 영향(II)

  • Published : 1999.08.01

Abstract

The compressibility sinterability sintering behaviour and thermal stability of AlOOH added UO2 pellt and PVA-Al(III) complex added UO2 pellet were investigated respectively. Compared with characteristics of AlOOH added UO2 pellet the green density and the sintered density of PVA-Al(III) complex added UO2 pellet were lowered but the grain size and the pore size of that were more increased in accordance with higher compacting pressure. The AlOOH added UO2 pellet had the grain size of about 14${\mu}{\textrm}{m}$ with monomodal pore size distribution while the PVA-Al(III) complex added UO2 pellet had the grain size of about 42 ${\mu}{\textrm}{m}$ with bimodal pore size distribution. The PVA-A(III) complex added UO2 pellet had a similiar open porosity to the AlOOH added UO2 pellet and a lower resintered density change than the AlOOH added UO2 pellet.

Keywords

References

  1. J. Am. Ceram. Soc. v.67 no.9 Oxide Fuels with Controlled Microstructure H. Asmann;W. Doerr;M. Peehs
  2. J. Nucl. Mater. v.52 The Independence of Inreactor UO₂ Densification on Temperature and Microstructure H. Stehle;H. Asmman
  3. J. Nucl. Mater. v.62 Irradiation-Induced Densification of UO₂ Pellet Fuel M. D. Freshley;D. W. Brite;J. L. Daniel;P. E. Hart
  4. Nucl. Eng. Inter. Fuel Production-an Advancing Technology T. J. Heal;J. E. Littlechild;H. Page
  5. Nucl. Eng. Inter. Optimizing Pellet Structure Improves Fuel Performance J. E. Littlechild;L. F. Raven
  6. J. Nucl Mater. v.64 Controlled Porosity Reactor Fuel K. C. Radford;J. E. Pope
  7. J. Nucl. Mater v.18 Grain Growth in Pure UO₂ and Titania-doped Uranium Dioxide I. Amato;R. L. Colombo;A. Petruccioli Balzari
  8. J. Nucl. Mater. v.95 The Irradiation Performance of Magnesia-Doped UO₂ Fuel P T. Sawbridge;C. Baker;R. M. Cornell;K. W. Jones;D. Reed
  9. J. Nucl. Mater. v.98 Doping UO₂ with Niobia-bebefical or not? H. Assmann;W. Dorr;G. Gradel;G. Maier;M. Peehs
  10. KAERI/RR-1005/90 핵연료 재변환 공정 개선 연구 장인순 (외)
  11. 요업재료의 과학과 기술 v.11 no.5 UO₂소결체의 미세구조 제어 박지연;정충환;김영석;이영우
  12. 요업학회지 v.35 no.8 PVA-Al(Ⅲ) 착물이 UO₂소결체의 기공 형성과 결정립 성장에 미치는 영향 (Ⅰ) 이신영;김형수;노재성
  13. 한국원자력학회지 v.26 no.4 Nb₂$O_5$ 첨가 UO₂ pellet의 수소 분위기와 이산화탄소 분위기 소결 중 미세조직의 형성에 대한 연구 송근우;김시형;김봉구;이영우;양명승;박현수
  14. 요업학회지 v.29 no.8 Aluminium Distearate 첨가가 UO₂ 핵연료 제조에 미치는 영향 박지연;정충환;김영석
  15. J Nucl. Mater. v.153 Resinter Testing in relation to In-pile Densification G Maier;H. Assmann;W. Dorr