Title of article
Quantification of crystalline phases and measurement of phosphate chain lengths in a mixed phase sample by 31P refocused INADEQUATE MAS NMR
Author/Authors
O’Dell، نويسنده , , Luke A. and Guerry، نويسنده , , Paul and Wong، نويسنده , , Alan and Abou Neel، نويسنده , , Ensanya A. and Pham، نويسنده , , Tran N. and Knowles، نويسنده , , Jonathan C. and Brown، نويسنده , , Steven P. and Smith، نويسنده , , Mark E.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
6
From page
178
To page
183
Abstract
A 31P refocused INADEQUATE pulse sequence has been used in combination with XRD to identify and quantify the crystalline phases present in a ternary sodium calcium phosphate ceramic of composition (CaO)0.4(Na2O)0.1(P2O5)0.5. Both the NMR and XRD identified the two main phases present as NaCa(PO3)3 and β-Ca(PO3)2. A third unidentified calcium phosphate phase was also observed by MAS NMR, featuring a chain of six crystallographically distinct PO4 units, the 31P MAS NMR chemical shifts of which have been identified in the correct sequence along the chain.
Journal title
Chemical Physics Letters
Serial Year
2008
Journal title
Chemical Physics Letters
Record number
1923848
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