Diffusion and conduction in melts

✍ Scribed by P.L. Spedding

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 650 KB
• Volume: 18
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(73)87019-7

✦ Synopsis

The difference between the conduction and diffusive transport modes in melts is discussed in terms of the movement of the basic entities of which the melt is composed. Data for theconduction and diffusion in TIC1 are used to illustrate a suggested method of separating out the contributions of ions, ionic agglomerates and molecules to the conductive and diffusive transport modes. Indications are that a Grotthus mechanism is the predominant conductive vehicle just above the melting point of the salt, while ionic agglomerates are the predominant diffusive entity in the same region. At about 770°C the molecular character of the melt commences to become significant; thereafter it increases in importance up to the critical point, where it is predominant.