## Abstract A pulse sequence is presented which allows measurement of short __T__~1~ values (< 1 s) in solids, avoiding probe damage by the use of saturating sequences of 90° pulses. The use of the sequence is illustrated for a cross‐linked polymeric system which contains composite peaks having bot
✦ LIBER ✦
232. The measurement of stacking size and lattice distortion in carbon fibres
✍ Scribed by D.J. Johnson
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 130 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0008-6223
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✦ Synopsis
Dynamic mechanical measurements and short beam shear tests have been used to characterize an Epon 828/MPDA epoxy resin and its composites with types A and HM carbon fibers. T, of the unfilled resin is sensitive to both epoxy stoichiometry and curing schedule. Composite properties depend on fiber type, fiber surface treatment and composite thermal history. Results are explained by a morphological model which includes both adsorptive and covalent interactions.
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⚖ 294 KB
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