In:
MRS Proceedings, Springer Science and Business Media LLC, Vol. 876 ( 2005)
Kurzfassung:
We present a selection of x-ray diffraction patterns of spherical (He, Ar), dumbbell- (N 2 , CO), and chain-like molecules (n-C 9 H 20 , n-C 19 H 40 ) solidified in nanopores of silica glass (mean pore diameter 7nm). These patterns allow us to demonstrate how key principles governing crystallization have to be adapted in order to accomplish solidification in restricted geometries. 4 He, Ar, and the spherical close packed phases of CO and N 2 adjust to the pore geometry by introducing a sizeable amount of stacking faults. For the pore solidified, medium-length chainlike n-C 19 H 40 we observe a close packed structure without lamellar ordering, whereas for the short-chain C 9 H 20 the layering principle survives, albeit in a modified fashion compared to the bulk phase.
Materialart:
Online-Ressource
ISSN:
0272-9172
,
1946-4274
DOI:
10.1557/PROC-876-R3.1
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
2005
