| 000 | 03090nlm1a2200469 4500 | ||
|---|---|---|---|
| 001 | 660042 | ||
| 005 | 20231030041651.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\28942 | ||
| 035 | _aRU\TPU\network\26468 | ||
| 090 | _a660042 | ||
| 100 | _a20190418a2018 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aCH | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aInfluence of Modifying Mixtures on Si Crystal Formation in Al-7%Si Alloy _fA. P. Zykova [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 23 tit.] | ||
| 330 | _aUsing scanning and transmission electron microscopy, we studied silicon particles formed during the solidification of Al-7%Si alloy when different modifying mixtures were introduced into the melt: (1) a mixture of ultrafine powders Na3AlF6 + K2ZrF6 + TiO2 + ZrO2; (2) K2ZrF6; and (3) the flux Arsal. By differential scanning calorimetry, it was established that modifying mixtures significantly influenced the temperature of the solidification processes. The formation of two types of Si crystals was established. The first type of Si crystals precipitated during the solidification of the eutectic mixture (?-Al + Si) in the form of needles or plates. The second type of Si crystals was segregated from eutectic Al-phases or segregated from the solid phase ?-Al upon cooling in the solid state. The introduction of modifiers led to a shift in solidification temperatures. When fluoride salts were used, there was an increase in the temperature of eutectic solidification. Silicon crystals were large (up to 10 µm), with a local excess of aluminum concentration | ||
| 461 | _tMetals | ||
| 463 |
_tVol. 8, iss. 2 _v[98, 14 p.] _d2018 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aAl-7%Si alloy | |
| 610 | 1 | _amodification | |
| 610 | 1 | _aultrafine powders | |
| 610 | 1 | _afine structure | |
| 610 | 1 | _aphase composition | |
| 610 | 1 | _aультратонкие слои | |
| 610 | 1 | _aфазовый состав | |
| 701 | 1 |
_aZykova _bA. P. _cphysicist _csenior lecturer, research engineer at Tomsk Polytechnic University, candidate of physico-mathematical Sciences _f1984- _gAnna Petrovna _2stltpush _3(RuTPU)RU\TPU\pers\34582 |
|
| 701 | 1 |
_aKazantseva _bL. A. _gLyudmila Alekseevna |
|
| 701 | 1 |
_aPopova _bN. A. _gNataljya Anatoljevna |
|
| 701 | 1 |
_aVorozhtsov _bA. B. _gAleksandr Borisovich |
|
| 701 | 1 |
_aKurzina _bI. A. _cChemist _cAssociate Professor of Tomsk Polytechnic University, Candidate of chemical sciences _f1972- _gIrina Aleksandrovna _2stltpush _3(RuTPU)RU\TPU\pers\32214 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bШкола базовой инженерной подготовки _bОтделение русского языка _h8030 _2stltpush _3(RuTPU)RU\TPU\col\23517 |
| 801 | 2 |
_aRU _b63413507 _c20200205 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.3390/met8020098 | |
| 856 | 4 | _uhttp://earchive.tpu.ru/handle/11683/57789 | |
| 942 | _cCF | ||