The effect of water jet method on the structural and physical properties of the welded YBCO superconducting samples

Duman Ş., Çakır B., AYDINER A.

Ceramics International, 2025 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Publication Date: 2025
  • Doi Number: 10.1016/j.ceramint.2025.03.006
  • Journal Name: Ceramics International
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: Critical current density, TSMG YBCO, Water jet method, Welding method with solder material
  • Karadeniz Technical University Affiliated: Yes

Abstract

This study aims to convert welded TSMG YBCO single crystals using different Y211 and molar 20 % Ag2O added YBCO samples produced using melting methods into hollow shapes using a water jet and to examine the effects of the water jet on the welding region to increase their use in technological applications. In this context, single crystal samples with Y123 + x % (x = 20, 25, 30) Y211 compositions were fabricated in two groups using Nd123 seed crystal with Top Seeded Melt Growth (TSMG) method. Melt Powder Melt Growth (MPMG) and TSMG processed solder samples with x % (x = 20, 25, 30) Y211 and 20 % Ag2O additions were fabricated in two groups for welding of TSMG YBCO samples. The samples with the same compositions were stacked and the appropriate thermal process welded the samples after placing a mass of 1.5 kg on the top surface of the stacked samples. A group of welded samples were turned into coils by drilling from their center axes using the water jet method. In order to examine the effects of the water jet on the welding region, Scanning Electron Microscope (SEM), resistivity and magnetization measurements of the small specimens cut from the welded samples were done. It was observed from the magnetization measurements that the water jet drilling method adversely affected the current carrying capacity of the samples welded by a solder material produced with the MPMG method.