Peculiarities of gallium crystallization in confined geometry

Autor:	B. F. Borisov, Yu. A. Kumzerov, Cheng Tien, A. V. Gartvik, V. K. Lavrentev, E. V. Charnaya
Rok vydání:	2004
Předmět:	Pore size Phase transition Materials science chemistry.chemical_element Porous glass Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention chemistry law Chemical physics Thermal Melting point Crystallization Gallium
Zdroj:	Physics of the Solid State. 46:2286-2291
ISSN:	1090-6460 1063-7834
DOI:	10.1134/1.1841395
Popis:	The freezing and melting phase transitions for gallium embedded into a porous glass with a pore size of about 8 nm were studied using acoustic, NMR, and x-ray techniques. It was shown that the broadened solidification and melting transitions upon deep cooling up to complete freezing at 165 K were due to the formation of β-Ga within pores. The offset of confined β-Ga melting was lowered by about 21 K compared to the bulk β-Ga melting point. Both melting and freezing in pores were irreversible. The fulfillment of some special thermal conditions led to gallium crystallization into other modifications. The role of heterogeneous crystallization in freezing of confined gallium is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e41738fb14f463fabc0d2dff70b7a812 https://doi.org/10.1134/1.1841395 Zobrazit plný text záznamu Full text from SpringerLink