caa a22 4500 445827084 CHVBK 20180317145302.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10854-011-0317-x doi (NATIONALLICENCE)springer-10.1007/s10854-011-0317-x The effect of composition on microhardness and determination of electrical and thermal properties in the Sn-Cu alloys [Elektronische Daten] [E. Çadırlı, H. Kaya] Tin-copper of (99.99%) high purity alloys were directionally solidified upward with different compositions, C o, Sn-(1.2, 3, 6 and 15)wt% Cu under two different solidification conditions (temperature gradient (G)=8K/mm, growth rate (V)=7μm/s and G=4K/mm, V=130μm/s) using a Bridgman type directional solidification apparatus. The measurements of microhardness of directionally solidified samples were obtained by using a microhardness test device. The dependence of microhardness HV (Vickers Hardness) on composition was analyzed. According to these results, it has been found that the values of HV increase with the increasing Cu content (C o). Variation of electrical resistivity (ρ) and electrical conductivity (σ) with the temperature were also measured by using a standard d.c. four-point probe technique. The enthalpy of fusion (∆H) and specific heat (Cp) of the Sn-Cu alloys were determined from heating curve during the transformation from solid to liquid phase by using differential scanning calorimeter (DSC). Springer Science+Business Media, LLC, 2011 Çadırlı E. Faculty of Arts and Sciences, Department of Physics, Niğde University, 51240, Niğde, Turkey aut Kaya H. Faculty of Education, Department of Science Education, Erciyes University, 38039, Kayseri, Turkey aut Journal of Materials Science: Materials in Electronics Springer US; http://www.springer-ny.com 22/9(2011-09-01), 1378-1386 0957-4522 22:9<1378 2011 22 10854 https://doi.org/10.1007/s10854-011-0317-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10854-011-0317-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Çadırlı E. Faculty of Arts and Sciences, Department of Physics, Niğde University, 51240, Niğde, Turkey aut NATIONALLICENCE 700 1- Kaya H. Faculty of Education, Department of Science Education, Erciyes University, 38039, Kayseri, Turkey aut NATIONALLICENCE 773 0- Journal of Materials Science: Materials in Electronics Springer US; http://www.springer-ny.com 22/9(2011-09-01), 1378-1386 0957-4522 22:9<1378 2011 22 10854 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer