Jørgen Skibsted , Hans J. Jakobsen , Christopher Hall
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引用次数: 30
摘要
合成钙铝铁素体(Ca2AlxFe2−xO5, x = 0.93, 1,1.33)的27Al MAS NMR谱只显示了预期的27Al中心转变强度的百分之几，表明波特兰水泥中的钙铝铁素体在27Al MAS NMR谱中几乎无法观察到。该结果支持使用27Al MAS NMR对硅酸盐水泥中铝酸三钙相进行定量分析。
Quantitative Aspects of 27Al MAS NMR of Calcium Aluminoferrites
27Al MAS NMR spectra of synthetic calcium aluminoferrites, Ca2AlxFe2−xO5 with x = 0.93, 1, 1.33, reveal only a few percent of the expected intensity for the 27Al central transition, indicating that the calcium aluminoferrite phase in Portland cements can barely be observed by 27Al MAS NMR. This result supports the use of 27Al MAS NMR for quantitative analysis of the tricalcium aluminate phase in Portland cements.
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