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Керамические нанопокрытия на сферических порошках: альтернативный способ получения пористых порошковых материалов

Керамические нанопокрытия на сферических порошках: альтернативный способ получения пористых порошковых материалов

Abstract

Разработана технология получения пористых порошковых материалов на основе сферических частиц порошка коррозионностойкой стали 12Х18Н10Т путем нанесения на них технологических покрытий - конденсата из слоистых и композиционных нанослоев Si и (Si + С) или Si и (Мо + Si), деформация которых в точках контакта сферических частиц при давлении ниже предела текучести порошка стали (ниже 200 МПа) создает условия формования прессовки с достаточным уровнем прочности, а последующее реакционное спекание, протекающее с экзотермической реакцией в покрытии, обеспечивает спекание частиц при локальном их разогреве в диапазоне температур 1100-1200 оС.

A technology has been developed to obtain porous powder materials on the basis of spherecal powder particles of 12Х18Н10T сorrosion-resistant steel by technological coating deposition on them-condensate from layered and composite Si and (Si + C) or Si and (Mo + Si) nano-layers. Their deformation at points of spherical particles contact creates press forming conditions with sufficient strength rate at pressure below yield point of steel powder (below 200 MPa). The subsequent sintering occurring with an exothermic reaction in the coating ensures particle sintering in their local heating within 1100-1200 С temperature range.

Keywords

КЕРАМИЧЕСКИЕ НАНОПОКРЫТИЯ,СФЕРИЧЕСКИЙ ПОРОШОК,АЛЬТЕРНАТИВНЫЙ СПОСОБ,ПОРИСТЫЕ ПОРОШКОВЫЕ МАТЕРИАЛЫ

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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold