High temperature phase relations and structure determination of solid solutions in the ternary Nd-Dy-Cu system

Škapin, Srečo D. (author), Golobič, Amalija (author), De Leon, Edith (author), Tudor, Catalina O. (author), Spreitzer, Matjaž (author), Suvorov, Danilo (author), Zakotnik, Miha (author)

The sub-solidus phase relations in the ternary Nd-Dy-Cu system were determined for an isothermal section at 550 °C. The samples were prepared by arc-melting and subsequent annealing in a protective atmosphere for 120 h. The phases in the prepared samples were characterized by X-ray powder diffraction and scanning electron microscopy, and their composition was determined by energy-dispersive spectroscopy. The intermetallic compounds based on the Dy-Cu system are compatible with compounds based on Nd-Cu-based and exhibit a high degree of solid-state solubility. The crystal structures of the solid solutions and their transformations were determined in detail. In the Cu-rich part of the system, the compound DyCu$_7$, which is stable above 700 °C according to literature data, was confirmed under the applied experimental conditions and is connected to NdCu$_6$ by a tie line.

• Language: English
• Keywords: Nd-Dy-Cu ternary system, phase equilibria, metals and alloys, intermetallic
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FKKT - Faculty of Chemistry and Chemical Technology
• Publication status: Published
• Publication version: Version of Record
• Year: 2024
• Number of pages: 7 str.
• Numbering: Vol. 87, art. 102770
• PID: 20.500.12556/RUL-165330
• UDC: 621.7+621.9
• ISSN on article: 1873-2984
• DOI: 10.1016/j.calphad.2024.102770
• COBISS.SI-ID: 216664835
• Publication date in RUL: 02.12.2024

Record is a part of a journal

• Title: Calphad
• Publisher: Elsevier
• ISSN: 1873-2984
• COBISS.SI-ID: 175347459

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: kovine, zlitine, magnetne lastnosti, sintri, metalurgija