Open Science Research Excellence
%0 Journal Article
%A I. Kurashvili and  G. Darsavelidze and  G. Bokuchava and  A. Sichinava and  I. Tabatadze 
%D 2016 
%J  International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering
%B World Academy of Science, Engineering and Technology
%I International Science Index 115, 2016
%T Influence of Boron Doping and Thermal Treatment on Internal Friction of Monocrystalline  Si1-xGex(x≤0,02) Alloys
%U http://waset.org/publications/10004868
%V 115
%X The impact of boron doping on the internal friction (IF) and shear modulus temperature spectra of Si1-xGex(x≤0,02) monocrsytals has been investigated by reverse torsional pendulum oscillations characteristics testing. At room temperatures, microhardness and indentation modulus of the same specimens have been measured by dynamic ultra microhardness tester. It is shown that boron doping causes two kinds effect: At low boron concentration (~1015 cm-3) significant strengthening is revealed, while at the high boron concentration (~1019 cm-3) strengthening effect and activation characteristics of relaxation origin IF processes are reduced.

%P 854 - 857