Synthesis and study of binary compounds of actinides and lanthanides. VIII. Intermetallides of berkelium and californium with platinum

Journal Article · Sun Mar 01 04:00:00 EST 1987 · Sov. Radiochem. (Engl. Transl.); (United States)

OSTI ID:6762211

Radchenko, V M; Shushakov, V D; Seleznev, A G; Lebedeva, L S; Ryabinin, M A; Vasil'ev, V Ya

Samples of intermetallic compounds Pt/sub 5//sup 249/Cf and Pt/sub 5//sup 249/Bk were obtained in the form of thin layers on a platinum support. It was found that the Pt/sub 5/Bk and Pt/sub 5/Cf intermetallides have a hexagonal structure of the Cu/sub 5/Ca type with parameters: a = 0.5270 +/- 0.0005, c = 0.4423 +/- 0.0004 for Pt/sub 5/Bk and a = 0.5266 +/- 0.0008, c = 0.4420 +/- 0.0005 nm for Pt/sub 5/Cf. The x-ray amorphization of the crystal lattice of the Pt/sub 5/Cf intermetallide was discovered after approx. 70 days of holding at room temperature, and its restoration after short-term annealing at 500/sup 0/C in vacuo. It was found that lattice parameters and volume of the unit cell of Pt/sub 5/Bk intermetallide increases after approx. 140 days of holding. This is due to the accumulation of /sup 249/Cf as the result of ..beta..-decay of /sup 249/Bk and the corresponding increase in the ..cap alpha..-activity of the sample.

• OSTI ID: 6762211
• Journal Information: Sov. Radiochem. (Engl. Transl.); (United States), Journal Name: Sov. Radiochem. (Engl. Transl.); (United States) Vol. 28:4; ISSN SVRDA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360106 -- Metals & Alloys-- Radiation Effects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALLOYS
ALPHA DECAY
ALPHA DECAY RADIOISOTOPES
ALPHA PARTICLES
BERKELIUM 249
BERKELIUM ALLOYS
BERKELIUM ISOTOPES
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
CALIFORNIUM 249
CALIFORNIUM ALLOYS
CALIFORNIUM ISOTOPES
CHARGED PARTICLES
CHEMICAL PREPARATION
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DAYS LIVING RADIOISOTOPES
DECAY
DEPOSITION
DIFFRACTION
EVEN-ODD NUCLEI
EXTRACTION
HEAVY NUCLEI
HEXAGONAL LATTICES
INTERMETALLIC COMPOUNDS
ISOTOPE SEPARATION
ISOTOPES
LATTICE PARAMETERS
NUCLEI
ODD-EVEN NUCLEI
PHYSICAL RADIATION EFFECTS
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
RADIATION EFFECTS
RADIOISOTOPES
SCATTERING
SEPARATION PROCESSES
SOLVENT EXTRACTION
STORAGE LIFE
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TIME DEPENDENCE
X-RAY DIFFRACTION
YEARS LIVING RADIOISOTOPES