Observation of 91Zr NMR in zirconium-based metals and oxides
β Scribed by T.J. Bastow; M.E. Smith; S.N. Stuart
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 481 KB
- Volume
- 191
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
The characterisation by "Zr NMR at room temperature is reported for Zr metal (hexagonal close-packed), ZrH2 (tetragonal), ZrC (cubic), ZrCo (cubic), ZQ (monoclinic), ZrQ (3 mol% Y203, tetragonal) and ZrOz (9.3 mol% MgO). The density of states deduced from the Knight shift for zirconium metal agrees with band structure calculations. It is shown for the first time that the quadrupolar lineshape distinguishes between the various zirconia-based phases.
π SIMILAR VOLUMES
Appreciable decreases of the line widths of NMR resonances of the quadrupolar nuclei 14 N, 53 Cr, 59 Co, 91 Zr, and 95 Mo have been obtained in supercritical solvents and in low-viscosity liquefied gases. Several Ξ±-diimines R 1 N=C(R 2 )-C(R 2 )= NR 1 and their coordination compounds have been studi
Zirconium oxide thin films were grown by atomic layer deposition (ALD) at low temperatures, ranging from 150 C to 300 C, by alternate surface reactions between Zr[OC(CH 3 ) 3 ] 4 and H 2 O. The films grown in the temperature range 200Β± 300 C were nanocrystalline. No films could be deposited above 30