Terzioğlu, Rıfkı2023-04-102023-04-1020202148-2446http://doi.org/10.29130/dubited.652403https://search.trdizin.gov.tr/yayin/detay/390492https://hdl.handle.net/20.500.12684/11637In this work, the effect of gold addition on fracture toughness and brittleness of YBa2Cu3O7?x (YBCO)superconductors were analyzed. Five different samples (undoped, 1%, 5%, 15% and 20%) were produced usingthe conventional solid-state reaction (SSR) method. The experimental results of the microhardnessmeasurements are used to obtain the yield strength, Young’s modules, fracture toughness and brittleness index.Some of these mechanical properties mentioned above are extracted by using the proportional specimenresistance (PSR) model. The results showed that the fracture toughness and brittleness of the samples were loaddependent. The yield strength, Young’s modules, brittleness index and fracture toughness values increase withdecreasing test load and decreases with increasing gold content. The possible reasons of the alteration in themechanical properties due to gold addition are analyzed.en10.29130/dubited.652403info:eu-repo/semantics/openAccessArticle8215621570390492