Quantitative Aspects of 27Al MAS NMR of
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JΓΈrgen Skibsted; Hans J. Jakobsen; Christopher Hall
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Article
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1998
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Elsevier Science
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English
β 458 KB
## 27 Al MAS NMR spectra of synthetic calcium aluminoferrites, Ca 2 Al x Fe 2Οͺx O 5 with x Ο 0.93, 1, 1.33, reveal only a few percent of the expected intensity for the 27 Al central transition, indicating that the calcium aluminoferrite phase in Portland cements can barely be observed by 27 Al MAS