Investigation of the Na–Ga Phase Diagram
Abstract
High Resolution Image Download MS PowerPoint Slide The Na–Ga phase diagram was reinvestigated by heat-flux differential scanning calorimetry (HF-DSC) and powder X-ray diffraction (PXRD). The most sodium-rich phase, Na 22 Ga 39, melts congruently (549(2) °C), while Na 7 Ga 13 (545(2) °C), Na 2 Ga 7 (501(2) °C), and NaGa 4 (495(2) °C) decompose peritectically. In the sodium-rich region, a monotectic reaction between Na 22 Ga 39 and melt occurs at 495(2) °C. The critical temperature of the liquid two-phase region was estimated to 523(2) °C. The subtle differences in the decomposition temperatures of neighboring phases were resolved by differential thermal analysis using a mutual sample reference method.
Fields of Study & Subjects
Thermodynamic and Structural Properties of Metals and Alloys
Thermal Expansion and Ionic Conductivity
Molten salt chemistry and electrochemical processes
Publication details
- Journal / source
- ACS Omega
- Volume
- 11
- Issue
- 2
- Pages
- 3593–3597
- Publication date
- 5 January 2026
- Language
- EN