Composite materials based on high-modulus compounds for additive technology

M. Grigoriev, N. Kotelnikov, S. Buyakova, S. Kulkov

Результат исследований: Материалы для журнала

Аннотация

The effect of adding nanocrystalline ZrO2 and submicron TiC to ultrafine Al2O3 on mechanical properties and the microstructure of the composites developed by hot pressing was investigated. It was shown that by means of hot pressing in argon atmosphere at the sintering temperature of 1500 °C one can obtain the composites of Al2O3-ZrO2-TiC with a fine structure and minimal porosity. It was shown that in the material a multi-scale hierarchical structure is formed, which possesses high physical and mechanical properties: the hardness and fracture toughness was 22 GPa and 5.2 MPa∗m1/2, respectively. It has been shown that mechanical properties of the composite are better than those of commercial composites based on aluminum oxide (Al2O3, ZTA, Al2O3-TiC) and are comparable to those of silicon nitride.

Язык оригиналаАнглийский
Номер статьи012009
ЖурналIOP Conference Series: Materials Science and Engineering
Том140
Номер выпуска1
DOI
СостояниеОпубликовано - 8 авг 2016
СобытиеInternational Seminar on Interdisciplinary Problems in Additive Technologies - Tomsk, Российская Федерация
Продолжительность: 16 дек 201517 дек 2015

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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