Atomic displacements in the normal-incommensurate phase transition in Co-åkermanite (Ca2CoSi2O7)

Autor:	C. R. Ross, N. E. Brown, Sharon L. Webb
Rok vydání:	1994
Předmět:	Åkermanite Phase transition Lattice constant Condensed matter physics Geochemistry and Petrology Chemistry Thermal engineering General Materials Science engineering.material Powder diffraction
Zdroj:	Physics and Chemistry of Minerals. 21:469-480
ISSN:	1432-2021 0342-1791
DOI:	10.1007/bf00202277
Popis:	New in-situ high-temperature X-ray powder diffraction data on the normal-incommensurate phase transition in Co-akermanite (Ca2CoSi2O7) are presented. Evidence for the phase transition is found in the abrupt change in the thermal expansivity of the c lattice parameter at 220° C. In addition, the c lattice parameter exhibits premonitory effects of the phase transition through the leveling out of the thermal expansivity at temperatures from 87 to 220° C.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cfb56dd80fb0652ef149b5855ce727cc https://doi.org/10.1007/bf00202277 Zobrazit plný text záznamu Full text from SpringerLink