Thermal diffusivity and conductivity of supercooled liquid in Zr41Ti14Cu12Ni10Be23 metallic glass

Yamasaki, Michiaki; Kagao, Shinya; Kawamura, Yoshihito; Yoshimura, Kenji
June 2004
Applied Physics Letters;6/7/2004, Vol. 84 Issue 23, p4653
Academic Journal
We measured the thermal diffusivity of amorphous solid and supercooled liquid in a Zr41Ti14Cu12Ni10Be23 bulk metallic glass (BMG) and its crystalline counterpart alloy at temperatures ranging from room temperature to 700 K, using a laser flash method. The thermal diffusivity and conductivity of the amorphous solid were weakly temperature dependent and increased with increasing temperature up to the glass transition temperature. The thermal diffusivity of the supercooled liquid was approximately 3.5×10-6 m2 s-1 and quite constant with temperature. The amorphous solid and supercooled liquid of Zr41Ti14Cu12Ni10Be23 BMG showed lower thermal diffusivity and conductivity than the crystalline counterpart in the range from room temperature to crystallization temperature. © 2004 American Institute of Physics.


Related Articles

  • Thermophysical properties of PLZT ferroelectric ceramics with a nanopolar structure. Kallaev, S. N.; Omarov, Z. M.; Mitarov, R. G.; Bilalov, A. R.; Bormanis, K.; Sadykov, S. A. // Journal of Experimental & Theoretical Physics;Sep2010, Vol. 111 Issue 3, p421 

    The heat capacity, thermal expansion coefficient, and deformation of the PLZT-9/65/35 compound are studied in the temperature range 150-800 K. Diffuse anomalies are detected in the temperature dependences of the heat capacity and thermal expansion coefficient over wide temperature ranges of...

  • Glass transformation temperature and stability of tellurite glasses. El-Mallawany, Raouf // Journal of Materials Research;Feb2003, Vol. 18 Issue 2, p402 

    Presents a study which measured the glass transformation and onset crystallization temperatures of tellurite glasses. Experimental techniques; Results and discussion; Conclusion.

  • Epoxy Resin Composite Bilayers with Triple-Shape Memory Effect. Li, Xixi; Zhu, Yaofeng; Dong, Yubing; Liu, Meng; Ni, Qingqing; Fu, Yaqin // Journal of Nanomaterials;10/5/2015, Vol. 2015, p1 

    Triple-shape memory epoxy composites with bilayer structures of well-separated glass transition temperatures have been successfully prepared. The different glass transition temperatures of the epoxy composites were obtained by physically incorporating various amounts of nanosilica particles,...

  • Effect of polydispersity on the crystallization kinetics of suspensions of colloidal hard spheres when approaching the glass transition. Schöpe, Hans Joachim; Bryant, Gary; van Megen, William // Journal of Chemical Physics;8/28/2007, Vol. 127 Issue 8, p084505 

    We present a comprehensive study of the solidification scenario in suspensions of colloidal hard spheres for three polydispersities between 4.8% and 5.8%, over a range of volume fractions from near freezing to near the glass transition. From these results, we identify four stages in the...

  • Glass formation in the ZrF4-PbF2-LaF3-NaF system. Babitsyna, A. A.; Emel'yanova, T. A.; Fedorov, V. A. // Inorganic Materials;Jan2006, Vol. 42 Issue 1, p89 

    Glass formation in the ZrF4-PbF2-LaF3-NaF system is studied by differential thermal analysis at ZrF4 contents of 65 and 70 mol %. The glass-forming region is outlined, and the composition dependences of glass stability parameters are presented.

  • Molecular dynamics investigation of a density-driven glass transition in a liquid crystal system. Vieira, Pablo A.; Lacks, Daniel J. // Journal of Chemical Physics;8/22/2004, Vol. 121 Issue 8, p3914 

    Molecular dynamics simulations are carried out to address the density-driven glass transition in a system of rodlike particles that interact with the Gay–Berne potential. Since crystallization occurs in this system on the time scale of the simulations, direct simulation of the glass...

  • Thermal transitions of polylactide false-twist textured multifilaments determined by DSC and TMA. Manich, A. M.; Carilla, J.; Miguel, R. A. L.; Lucas, J. M.; Franco, F. G. F.; Montero, L. A.; Cayuela, D. // Journal of Thermal Analysis & Calorimetry;Mar2010, Vol. 99 Issue 3, p723 

    A partially oriented melt-extruded PLA multifilament was false-twist textured to stabilize its structure. Conventional DSC analysis showed a relaxation peak at the end of glass transition. Simultaneous consideration of the TMA curve enabled us to evaluate both the relaxation and the cold...

  • About the kinetics of normal crystal growth. Dimitrov, V.I. // Applied Physics A: Materials Science & Processing;2003, Vol. 77 Issue 6, p835 

    Usually, the kinetic coefficient of crystal growth, i.e. the coefficient of proportionality of the crystal growth velocity to the undercooled temperature, is supposed to be a constant parameter. In the present study we show that this assumption is valid only for low undercooling temperatures,...

  • Link between Vitrification and Crystallization in Two Dimensional Polydisperse Colloidal Liquid. Kawasaki, T.; Araki, T.; Tanaka, H. // AIP Conference Proceedings;2/21/2008, Vol. 982 Issue 1, p238 

    Glasses are formed if crystallization is avoided upon cooling or increasing density. However, the physical factors controlling the ease of vitrification and nature of the glass transition remain elusive. We use numerical simulations of polydisperse hard disks to tackle both of these longstanding...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics