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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 原田 克也仲田 祐仁原田 晃男二瓶 康夫安田 良西野 泰治
- Publication Date
- 2004-03
- Publication Date (W3CDTF)
- 2004
- Alternative Title
- Development of pellet melting temperature measuring technique; Melting temperature measuring technique for small sample
- Periodical title
- JAERI-Tech 2004-034
- Target Audience
- 一般
- Note (General)
- 出版タイプ: NA燃料ペレットの微小領域における融点測定を目指し、既存のペレット融点測定装置を使用して少量の燃料ペレットで測定を可能とするために、燃料ペレットを封入するタングステンカプセルの改良及び試料の少量化に起因する不明瞭なサーマルアレストから融点を決定する方法の確立を行った。その結果、サーマルアレスト法による微小試料の融点測定が可能となり、照射済燃料ペレットの微小領域での融点測定に有効であることを確認した。本報は、ペレット融点測定装置を用いた微小試料の融点測定技術開発の概要を報告するとともに、タンタル[Ta],モリブデン[Mo],酸化ハフニウム[HfO$_{2}$]及び未照射UO$_{2}$ペレットを用いて実施した測定結果をまとめたものである。The Department of Hot Laboratories has been aiming the establishment of the melting temperature measuring technique for small samples obtained from the micro-region of irradiated fuel pellet. Due to the modification of the shape of tungsten capsule contained sample and the improvement of the detection method for melting temperature from indistinct thermal arrest point owing to small sample, it is possible to determine the melting temperature of small sample and to utilize effectively for the irradiated fuel pellet by using the existing apparatus. This paper describes the technique of the melting temperature measurement for small sample and the experimental results by using tantalum, molybdenum, hafnium oxide and un-irradiated UO$_{2}$ pellet.
- Source
- /JAERI-Tech-2004-034.pdf (fulltext)