Low temperature thermal expansion coefficients of members of the solid solution gehlenite (ge)-åkermanite (åk) were measured by synchrotron radiation X-Ray powder diffraction. The linear thermal expansion coefficient is maximum for a composition with about 50 % content of åk. In åk-rich compositions an incommensurate modulated structure is present. The ge-åk solid solution shows a non-ideal behaviour, with negative excess volume near the ge end-member.
Low temperature SR-XRPD study of akermanite-gehlenite solid solution / M. Merlini, M. Gemmi, G. Artioli. - 2006:23(2006), pp. 419-424. [10.1524/zksu.2006.suppl_23.419]
Low temperature SR-XRPD study of akermanite-gehlenite solid solution
M. MerliniPrimo
;M. GemmiSecondo
;G. ArtioliUltimo
2006
Abstract
Low temperature thermal expansion coefficients of members of the solid solution gehlenite (ge)-åkermanite (åk) were measured by synchrotron radiation X-Ray powder diffraction. The linear thermal expansion coefficient is maximum for a composition with about 50 % content of åk. In åk-rich compositions an incommensurate modulated structure is present. The ge-åk solid solution shows a non-ideal behaviour, with negative excess volume near the ge end-member.
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