Multistep helium solubility isotherms and helium flaw detection in polycrystalline palladium with a submicrocrystalline structure / Kupryazhkin AY,Zhiganov AN,Mulyukov RR,Vyazovoi AV // RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY. - 2004. - V. 78, l. 8. - P. 1246-1249.

ISSN/EISSN:

0036-0244 / нет данных

Type:

Article

Abstract:

The solubility of helium and the feasibility of flaw detection in polycrystalline palladium with a submicrocrystalline structure were studied by helium flaw detection (saturation of defects with helium) over the temperature and saturation pressure ranges 293-508 K and 0-25.5 MPa, respectively. The helium solubility isotherms had a step character with four ``plateaus.{''} The plateaus were shown to be caused by the sequential saturation of vacancy clusters formed during sample preparation with one, two, three, and four helium atoms. The energy of solution of helium in vacancy clusters changed from -0.028 +/- 0.005 eV for free clusters to 0.070 +/- 0.007 eV for clusters preliminarily filled by three helium atoms. The suggested model was used to obtain a semiempirical equation of multistep solubility isotherms and determine the concentration of vacancy clusters. The results are compared with those obtained by other authors.

Author keywords:

DEFORMATION; CRYSTALS; IONS

DOI:

нет данных

Web of Science ID:

ISI:000223518800011

Соавторы в МНС:

Другие поля

Поле	Значение
Month	AUG
Publisher	INTERPERIODICA
Address	PO BOX 1831, BIRMINGHAM, AL 35201-1831 USA
Language	English
Keywords-Plus	DEFORMATION; CRYSTALS; IONS
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Physical
Author-Email	kupr@dpt.ustu.ru radik@anrb.ru
ResearcherID-Numbers	Mulyukov, Radik/B-3800-2016
ORCID-Numbers	Mulyukov, Radik/0000-0002-0452-3816
Number-of-Cited-References	13
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	15
Journal-ISO	Russ. J. Phys. Chem.
Doc-Delivery-Number	849DL