Experimental determination of interfacial energy for solid Zn solution in the Sn-Zn eutectic system

Meydaneri F., Payveren M., SAATÇİ B., Özdemir M., MARAŞLI N.

Metals and Materials International, cilt.18, sa.1, ss.95-104, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18 Sayı: 1
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1007/s12540-012-0012-3
  • Dergi Adı: Metals and Materials International
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.95-104
  • Anahtar Kelimeler: alloys, crystal growth, thermal analysis, interfaces, phase transformation
  • İstanbul Gelişim Üniversitesi Adresli: Hayır

Özet

The grain boundary groove shapes for Zn solid solution in equilibrium with Sn-Zn eutectic liquid were observed with a radial heat flow apparatus. From the observed grain boundary groove shapes, the Gibbs-Thomson coefficient, the solid-liquid and the grain boundary energy for the Zn solid solution in equilibrium with Sn-Zn eutectic liquid were determined to be (2.32 ± 0.13)×10 -8 Km, (120.87 ± 13.29)×10 -3 J.m -2 and (194.76 ± 23.37)×10 -3 J.m -2 , respectively. The termal conductivity of the eutectic Sn-9 wt% Zn solid solution, κ S , was obtained as 74.74 W/Km by using a radial heat flow apparatus. The thermal conductivity ratio of the eutectic liquid to the eutectic solid, R = κ L /κ S was found to be 0.58 with a Bridgman-type directional growth apparatus. Thus, the value of the thermal conductivity of eutectic Sn-9 wt% Zn liquid solution, κ L , was obtained as 43.82 W/Km. © 2012 The Korean Institute of Metals and Materials and Springer Netherlands.