Int J Thermophys (2009) 30:1931–1937 DOI 10.1007/s10765-009-0660-9 Thermal Expansion of Ni–W, Ni–Cr, and Ni–Cr–W Alloys Between Room Temperature and 800 ◦ C G. A. Dosovitskiy · S. V. Samoilenkov · A. R. Kaul · D. P. Rodionov Received: 28 January 2009 / Accepted: 30 September 2009 / Published online: 24 October 2009 © Springer Science+Business Media, LLC 2009 Abstract The thermal expansion of Ni–W, Ni–Cr, and Ni–Cr–W alloys has been measured by quartz dilatometry for the 20 ◦ C to 800 ◦ C temperature range. It is found that substitution of nickel by tungsten leads to a considerable decrease of the thermal expansion coefficient (TEC), while chromium has only a small influence on the TEC of the alloy. Keywords Nickel-based alloys · Textured metal tapes · Thermal expansion 1 Introduction The development of high-temperature superconducting (HTS) materials for electric current transfer, called coated conductors, has seen rapid progress in recent years. Sev- eral approaches have been shown to bring success. One of these approaches is based on the use of biaxially textured tapes of nickel-based alloys, with Ni–5 at% W alloy being G. A. Dosovitskiy Materials Science Department, Moscow State University, Moscow, Russia S. V. Samoilenkov (B ) Institute of High Temperature RAS, Moscow, Russia e-mail: s.samoilenkov@gmail.com A. R. Kaul Chemistry Department, Moscow State University, Moscow, Russia S. V. Samoilenkov · A. R. Kaul SuperOx Company, Moscow, Russia D. P. Rodionov Institute of Metal Physics, Ural Branch of RAS, Ekaterinburg, Russia 123