The structural motives and processes of mass transfer in the melts
Heading:
| 1Maiboroda, VP, 1Molchanovskaya, GM 1I.N. Frantsevich Institute for Material Science Problems, NAS of Ukraine, Kyiv, Ukraine |
| Kosm. nauka tehnol. 2002, 8 ;(5-6):117-120 |
| https://doi.org/10.15407/knit2002.05.117 |
| Publication Language: Russian |
Abstract: The investigations are dedicate to determination of possible hereditaly anisotropy of selfdiffusion in the metal melts. The building of the melt Zn is comparing with the frozen structures of the samples. In this purpose the sample selection before solidification was made with using of the effect of separation of liquid on the structural fragments. The availability in melts the layer fractals and the free volume like deposit of pores that have cuts is established. The building of the boiling melt is characterized by colloids. The internal volume of colloids contain the strip compositional motive. The free volume of the frozen structure of boiling melt distribute among boundaries of colloids. On the base of data the choice of orientation parameters of monocrystalls of Zn are substans for the investigation of the processes of selfdiffusion in its melts in conditions of microgravitation.
|
| Keywords: boiling melt, colloids, mass transfer |
References:
1. Gavrilin I. V. Melting and crystallization of metals and alloys, 260 p. (Vladimir State University, Vladimir, 2000) [in Russian].
2. Danilov V. I. Structure and Crystallization of Liquids, 568 p. (Izd. AN UkrSSR, Kiev, 1956) [in Russian].
3. Ershov G. S., Maiboroda V. P. Diffusion in Metallic Melts, 224 p. (Nauk. Dumka, Kiev, 1990) [in Russian].
4. Maiboroda V. P. Effect of melt processing on the structure and density of zinc, Dep. v VINITI 17.05.90, No. 2711-V90 (MF, No. 5) (Moscow, 1990) [in Russian].
5. Maiboroda V. P. Change in the structure of copper in the pre-melting stage. Izv. AN SSSR. Metally, No. 4, 49—52 (1990) [in Russian].
6. Maiboroda V. P. Investigation of the surface of tin during melting. UFZh, 36 (7), 1083—1086 (1991) [in Russian].
7. Mayboroda V. P. Influence of the stream of melt treatment on the structure of aluminium, Nickel and copper. Rasplavy, No. 3, 115—117 (1991) [in Russian].
8. Mayboroda V. P., Lisenko A. A. Investigation of the origin of the ultra-small-crystalline iron structure at the pre-melting stage: Preprint Institute for Problems of Materials Science AS USSR No. 12, 27 p. (Kiev, 1986) [in Russian].
9. Maiboroda V. P., Makara V. A., Molchanovs’ka G. M., et al. Structure-forming on cooling an overheated aluminum melt. Dopovidi NANU, No. 11, 64— 67 (2001) [in Ukrainian].
10. Maiboroda V. P., Maksymova G. O., Molchanovska G. M., et al. Hereditary structures derived from nickel melt. Visnyk Kyiv. un-tu. Ser. Fizyko-matematychni nauky, Is. 2, 520—523 (2000) [in Ukrainian].
11. Majboroda V. P., Trefilov V. I., Maksimova G. A., Revo S. L. The direct study of submicrostructure changes of the gold condensate under heating. Metallofizika i novejshie tehnologii, 19 (8), 19—22 (1997) [in Russian].
12. Maiboroda V. P., Trefilov V. I., et al. Study of temperature effect on the orientation of crystalline islands of tin in thin films. Metally, No. 2, 124—127 (1999) [in Russian].
13. Maiboroda V. P. In: Thin Solid Films, 191-195 (1-2) 357—366.
14. Maiboroda V. P., Molchanovskaya G. M. In: Kosm. nauka tehnol., 6 (4), 22—23 (2000).