Analytical Services: Nuclear Magnetic Resonance
Michael J. Kelly, Sandia National Laboratories
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General Use |
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- Phase analysis |
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- Electronic structure of metals |
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- Near-neighbor environment of atoms in solids |
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- Measures rate of kinetic processes, for example molecular reorientation or diffusion |
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- Magnetic structural studies |
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- Molecular structure of organic compounds |
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- Quantitative analysis of specific components and functional groups |
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Examples of Applications |
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- Detection of phase changes |
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- Study of hydrogen diffusion in metals |
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- Studies of long-range order in intermetallic compounds |
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- Spin wave studies in ferromagnetic materials |
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- Effect of pressure on electronic structure |
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- Isomer identification and quantification |
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- Determination of copolymer ratios |
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Samples |
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- Form: Inorganic powders, thin wires, or thin foils,
with one dimension small compared with the radio frequency
skin depth, generally 10 |
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- Size; Several grams (inorganic) to 0.1 g (organic) |
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Estimated Analysis Time |
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- 30 min to 48 h |
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Capabilities of Related Techniques |
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- Optical metallography: Shows morphology and number of phases present |
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- X-ray diffraction: Gives related crystal structure information |
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- Mössbauer effect: Provides a detectable effect in the presence of many defects |
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- Infrared/Fourier transform infrared spectroscopy: More sensitive for compound identification; applicable to gases; easier data interpretation |
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- Gas chromatography/mass spectrometry: Useful for identification of complex mixtures; more sensitive |
Reprinted with permission of ASM International®.
Latest Resources
- April 2, 2008 - Glass Vial Sprinkler Accidents – If any of your sprinklers has a glass vial please read on since this article discusses the unexpected release of an enormous amount of water when one of these sprinklers trips.
- April 1, 2007 - Embrittlement of Steels – Practical advice on the embrittlement of steels and new steels that can enhance the performance of critical mechanical parts.
- May 1, 2006 - Hydrolysis of Fiberglass – Hydrolysis Failures of Fiberglass: delamination, blistering & bleeding.
- June 1, 2005 - High Cycle Fatigue
Latest Newsletters
- April 1, 2008 - Nuts & Bolts, Volume 25 – Glass Vial Sprinkler Accidents & Passivation
- April 1, 2007 - Nuts & Bolts, Volume 24 – Embrittlement of Steels
- May 1, 2006 - Nuts & Bolts, Volume 23 – Hydrolysis of Fiberglass
- June 1, 2005 - Nuts & Bolts, Volume 22 – High Cycle Fatigue
