Positron annihilation in poly- and monocrystalline silver deformed by uniaxial tension

• Autorzy: Rudzińska W. , Szuszkiewicz M. , Kluza A. A. , Bujnarowski G. , Pająk J.
• Konferencja: XIth International Seminar of Physics and Chemistry of Solids (11 ; 2005 ; Polska)
• Języki publikacji: EN

Abstrakty

EN

Angular distributions of the positron annihilation quanta was measured for polycrystalline and monocrystalline silver samples oriented in (111) and (100) direction, deformed by uniaxial tension up to different deformation degrees. The S parameter as a function of deformation degree and the S parameter as a function of the W parameter has been determined. The data obtained for monocrystalline samples was found that the dynamics of the dislocation and vacancy generation, during the sliding of some crystallographic planes, depends on the crystallographic direction. The data obtained for polycrystalline silver samples elongated up to different elongation degrees indicate that in the proportionality and limited proportionality regions the changes in the physical properties of silver are governed mainly by generation of vacancies and formation and kinetics of transformations of vacancy clusters occurring first of all on the grain boundaries of monocrystallites. In the region of plastic deformations the dominant defects are dislocations and vacancies and their aggregates generated due to the formation and movement of the dislocation of the primary and secondary slip.

Słowa kluczowe

EN

positron annihilation; monocrystalline silver; uniaxial tension

• Wydawca: Wydawnictwo Uniwersytetu Humanistyczno-Przyrodniczego im. Jana Długosza w Częstochowie
• Czasopismo: Prace Naukowe. Chemia i Ochrona Środowiska / Akademia im. Jana Długosza w Częstochowie
• Rocznik: 2005
• Tom: Vol. 10
• Strony: 157--160
• Opis fizyczny: Bibliogr. 9 poz., fig.

Twórcy

autor

Rudzińska W.

• Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland

autor

Szuszkiewicz M.

• Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland

autor

Kluza A. A.

• Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland

autor

Bujnarowski G.

• Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland

autor

Pająk J.

• Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland

Bibliografia

• 1. R. W. K. Honeycosmbe: "The Plastic Deformation of Metals", Cambridge, Publ. Edward Arnold, (1968);
• 2. M. Głowacka, "Metalloqraphy", Gdansk University of Technology, Gdańsk (1996);
• 3. W. Rudzińska, J. Pająk, Cz. Szymański, R. Szatanik, Acta Phys. Polon. A 99, (2001), 479;
• 4. W. Rudzińska, J. Pająk, M. Szuszkiewicz, G. Bujnarowski , A. A. Kluza, Proc. of the 34th Polish Seminar on Positron Annihilation, Turawa, June 16-21, Ed. K. Jerie, Institute of Physics, University of Opole, Institute of Experimental Physics, University of Wrocław, Opole (2002), 69-74;
• 5. J. Pająk, W. Rudzińska, Cz. Szymański, S. Gąsior, K. Malisz, Proc. of the 34th Polish Seminar on Positron Annihilation, Turawa, June 16-21, Ed. K. Jerie, Institute of Physics, University of Opole, Institute of Experimental Physics, University of Wrocław, Opole (2002), 55-60;
• 6. J. Pająk, W. Rudzińska, R. Pietrzak, Cz. Szymański and W. Smiatek, Physica Scripta Vol. XX, 2-4 (2003);
• 7. W. Rudzińska, J. Pająk, M. Szuszkiewicz, G. Bujnarowski, A. A. Kluza, Physica Scripta Vol. 71, 111-114 (2005);
• 8. W. Rudzińska, J. Pająk, M. Szuszkiewicz, G. Bujnarowski, A. A. Kluza, Acta Physica Polonica A, Vol. 107, No. 5, 857, (2005);
• 9. J. Dryzek, "Introduction to the spectroscapy of positron annihilation in condensed matter", Jagiellonian University, Kraków (1999).