Heat capacity of liquid silicates: new measurements on NaAlSi3O8 and K2Si4O9 |
| |
| Authors: | Pascal Richet Yan Bottinga |
| |
| Affiliation: | Laboratoire de Géochimie et Cosmochimie, Institut de Physique du Globe, et Département des Sciences de la Terre, Université Paris VII. 4 place Jussieu, 75230 Paris, cedex 05, France;Université de Nice, Parc Valrose, 06034 Nice, France |
| |
| Abstract: | Drop calorimetric measurements of HT-H273 are reported for glassy and liquid albite and potassium tetrasilicate for the temperature interval 600–1500 K. Analysis of these observations as well as data for 13 other stable and supercooled silicate liquids suggests strongly that the isobaric heat capacities of stable and supercooled liquids are equal and thus temperature independent. Available evidence indicates that the isochoric heat capacities of liquid alkali silicates are also temperature independent within present experimental uncertainties. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
