| Autor: |
Panin, V. E., Kochepasov, I. I., Kim, E. S., Zayats, I. I. |
| Zdroj: |
Powder Metallurgy and Metal Ceramics; October 1978, Vol. 17 Issue: 10 p761-765, 5p |
| Abstrakt: |
1.The LTAS of a defective powder takes place under conditions of primary AR and formation of an ultrafine-grained structure, and is in fact a manifestation of structural superplasticity of the compact being sintered.2.Subjecting a powder to recrystallization annealing or suppressing AR in a powder with an antirecrystallization addition sharply alters the mechanism of LTAS and the temperature dependence of shrinkage.3.A mechanism of LTAS of a defective powder is proposed based on diffusional penetration of an activator into particles along their structural defects and on initiation of AR. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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