| Literature DB >> 17560090 |
L A O'Dell1, S L P Savin, A V Chadwick, M E Smith.
Abstract
(27)Al MAS NMR has been used to study a sol-gel prepared alumina annealed at various temperatures. Two-field simulation of the sample heated to 1200 degrees C confirmed the presence of corundum, as suggested by XRD, and also the presence of nanocrystalline theta-Al(2)O(3). (27)Al MAS NMR chemical shifts, quadrupolar coupling constants and asymmetry parameters are reported for the tetrahedral and octahedral aluminium sites within theta-Al(2)O(3).Entities:
Mesh：
Substances：
Year: 2007 PMID： 17560090 DOI： 10.1016/j.ssnmr.2007.05.002
Source DB: PubMed Journal: Solid State Nucl Magn Reson ISSN： 0926-2040 Impact factor: 2.293