Related Experiment Video
Updated: Jan 28, 2026

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers
Published on: September 4, 2015
Investigation of the Na-Ga Phase Diagram
Chia-Chi Yu1, Marcus Schmidt1, Michael Baitinger1
1Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany.
Abstract:
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, Na22Ga39, melts congruently (549(2) °C), while Na7Ga13 (545(2) °C), Na2Ga7 (501(2) °C), and NaGa4 (495(2) °C) decompose peritectically. In the sodium-rich region, a monotectic reaction between Na22Ga39 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.
Related Concept Videos
Phase Diagrams
Phase Diagram
Energy Diagrams - II
The point in the energy diagram at which the system’s potential energy is the lowest is known as the local minima. The system tends to stay in this position indefinitely unless acted upon by a net force. The slope of the potential energy diagram at the local minima is zero, indicating that zero net force is acting on the system. The...
pV-Diagrams
Free-body Diagram
A free-body diagram transforms a complex problem into a simple representation, making it easy to understand the...
Shear Diagram
First, a free-body diagram of the beam is drawn, representing all the external forces and internal reactions acting on the beam. One can calculate the reaction forces at each support by employing the equilibrium equations of force and moment. The vertical component...

