|
|
★
小木虫(金币+0.5):给个红包，谢谢回帖交流
因果关系我不确定，因为不知其原理。原文相应的一段如下：
Accompanying the increasing tendency shown in the theoretical
values for the lattice parameters of ZnAl2O4 (8.05 Å and CoAl2O4
(8.106 Å, the experimental values of lattice parameters and unit
cell volume gradually increase upon the Co-substitution from zinc,
from 8.083 Å to 8.095 Å in the case of lattice parameter, and from
528.10 Å3 to 530.45 Å3 in the case of unit cell volume. Such raise in
the unit cell is in agreement with the values from ICDD files, Fig.1. It
should be stressed that the formation of a nanocrystalline structure,
with the further reduction in the mean crystallite size upon
the Co-enrichment, diminishing its value from 38.1 nm to 22 nm. It
should be remarked that these two properties fairly obey Ve´ gard’s
law reasonably closely, with the corresponding linear relationship
of lattice parameter and crystallite size with the Co-enrichment of
the system, Fig. 2.
[ Last edited by sdluxi on 2009-8-31 at 10:51 ] |
|
回复此楼