| Autor: |
Kasatkin, B. S., Grinyuk, V. D., Gaidarenko, A. L. |
| Zdroj: |
Mechanics of Composite Materials; May 1969, Vol. 5 Issue: 3 p327-332, 6p |
| Abstrakt: |
The morphology and properties of the interspherulitic boundaries in polyethylene specimens with ring-type spherulitic microstructure have been the subject of a microscopic and electron-microscopic investigation. It is shown that the structure and the strength of the boundaries depend on the orientation of the structural elements, of which the spherulites are composed. The strongest boundaries are those where the c axes of the crystals are oriented perpendicular to the interface. The parts of the boundaries where the crystals are in lateral contact serve as centers of brittle crack nucleation. The morphology of the interspherulitic boundaries is discussed with reference to the mechanism of spherulite formation. The possibility of controlling the boundary structure by regulating the supermolecular microstructure of the polymer is examined. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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