Visualization of liquid-solid interface morphologies in gallium subject to natural convection

• Published in: Journal of crystal growth Vol. 140; no. 3-4; pp. 414 - 425
• Main Authors: Campbell, T.A., Koster, J.N.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.07.1994; Elsevier
• Subjects: Applied sciences; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Growth from melts; zone melting and refining; Materials science; Metals. Metallurgy; Methods of crystal growth; physics of crystal growth; Physics; Solid-fluid interfaces; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Theory and models of crystal growth; physics of crystal growth, crystal morphology and orientation; Theory and models of film growth; Real time systems; Gallium; Temperature gradients; Morphology; Growth interface; Natural convection; Experimental study; Solid-fluid interfaces; Crystal growth from melts

Melting and solidification of pure gallium is studied using real-time radioscopy methods. Sharp contrast between melt and solid phases with a 3% density difference is illustrated. The interfacial shape reflects convective flow in the liquid phase. Comparisons are made between real-time non-intrusive...