Title:
ウラン及びモリブデンを基にした合金の粉を調製するための方法
Document Type and Number:
Japanese Patent JP2014508217
Kind Code:
A
Abstract:
A method for preparing a powder of an alloy based on uranium and molybdenum in a metastable γ phase is provided, which comprises: a) putting at least one first reagent selected from uranium oxides and mixtures thereof, uranium fluorides and mixtures thereof, into contact with a second reagent consisting in molybdenum and a third reagent consisting in a reducing metal, the first, second and third reagents being in a divided form; b) reacting the reagents at a temperature≧the melting temperature of the third reagent and under an inert atmosphere, whereby this reaction leads to the formation of the alloy comprising uranium and molybdenum in the form of a powder, for which the particles are covered with a reducing metal oxide or fluoride layer; c) cooling the so formed powder at a rate at least equal to 450° C./hour; and d) removing the reducing metal oxide or fluoride layer which covers the particles of the powder of the alloy comprising uranium and molybdenum.
Inventors:
Jerome Arnaud
Meryl Broche
Francoise Charore
Xavier Iltis
Olivier Tugue
Matthew pastorel
Henri Noel
Meryl Broche
Francoise Charore
Xavier Iltis
Olivier Tugue
Matthew pastorel
Henri Noel
Application Number:
JP2013546693A
Publication Date:
April 03, 2014
Filing Date:
December 23, 2011
Export Citation:
Assignee:
INSERM(INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE)
Universite de Rennes Anne
Center National de la Recherche Scientific
Universite de Rennes Anne
Center National de la Recherche Scientific
International Classes:
B22F9/20; C22B5/04; C22B60/02; C22C28/00; G21C3/60
Domestic Patent References:
| JP2014508216A | 2014-04-03 | |||
| JPH06258477A | 1994-09-16 | |||
| JPH05163538A | 1993-06-29 | |||
| JPS371555B1 | ||||
| JPS3822110B1 | ||||
| JPS4842526B | ||||
| JPS3620352B1 | ||||
| JPH04160125A | 1992-06-03 | |||
| JP2001511480A | 2001-08-14 | |||
| JPH0339494A | 1991-02-20 |
Foreign References:
| US5978432A | 1999-11-02 | |||
| US20030172776A1 | 2003-09-18 | |||
| US4534792A | 1985-08-13 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro