Two phase model of diffusion in polycrystalline material

Marija V. Chepak-Gizbrekht, Ekaterina Vasilievna Shvagrukova

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции


Diffusion research is important for understanding of many processes based on mass transfer. In many respects, diffusion, determines physical and mechanical characteristics for new materials with fine-dispersed matter and a large number of grain boundaries and phases. Models of diffusion along grain boundaries and their modifications are widely known in literature, but they are not always applicable to nanomaterials due to indistinct determination of some notions. At the present paper the model of diffusion is presented, which considers boundaries and area near boundaries as a phase with special properties. Mass transfer between the volume of a grain and a boundary phase is taken into account. The approximate analytical solution of the problem is formulated. In the general case the problem is solved numerically. Non monotonic distributions of concentrations in volume are obtained.

Язык оригиналаАнглийский
Название основной публикацииAdvanced Materials Research
ИздательTrans Tech Publications Ltd
Число страниц6
ISBN (печатное издание)9783038352648
СостояниеОпубликовано - 2014
СобытиеInternational Conference for Young Scientists “High Technology: Research and Applications 2014”, HTRA 2014 - Tomsk, Российская Федерация
Продолжительность: 26 мар 201428 мар 2014

Серия публикаций

НазваниеAdvanced Materials Research
ISSN (печатное издание)10226680
ISSN (электронное издание)16628985


ДругоеInternational Conference for Young Scientists “High Technology: Research and Applications 2014”, HTRA 2014
СтранаРоссийская Федерация

ASJC Scopus subject areas

  • Engineering(all)

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