ISSN:
1551-2916
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
For the first time, a periodicity of 14 Å is recognized as a typical modulation period in metakaolinite. Energy-filtered electron diffraction data confirm that dehydroxylation does not occur abruptly in kaolinite. The degree of ordering becomes much lower during the progression of dehydroxylation in metakaolinite than in kaolinite. However, different types of modulations, with periods in the range from ∼1.4d001 (9.47 Å) to 2.9d001 (19.89 Å), form along the c*-axis in metakaolinite. Modules (14.2 Å= 2.1d001) that have a length that is approximately twice as long as the metakaolinite layer (6.86 Å) are the most common. Presumably, the remnant oxygens and vacant anion sites rearrange to acquire stability in the layer structure, which builds modulations along the c*-axis in the metakaolinite.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1151-2916.2003.tb03297.x
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