Spark Plasma Sintering of Commercial Zirconium Carbide Powders: Densification Behavior and Mechanical Properties

Spark Plasma Sintering of Commercial Zirconium Carbide Powders: Densification Behavior and Mechanical Properties

Bibliografiska uppgifter
Parent link:Materials
Vol. 8.— 2015.— [P. 6043-6061]
Institutionell upphovsman: Национальный исследовательский Томский политехнический университет (ТПУ) Институт неразрушающего контроля (ИНК) Кафедра физических методов и приборов контроля качества (ФМПК)
Övriga upphovsmän: Xialu Wei, Back C. Christina, Izhvanov O. Oleg, Grigorjev E. G. Evgeny Grigorjevich, Khasanov O. L. Oleg Leonidovich, Haines Ch. D. Christopher, Olevsky E. A. Evgeny Aleksandrovich
Sammanfattning:Title screen
Commercial zirconium carbide (ZrC) powder is consolidated by Spark Plasma Sintering (SPS). Processing temperatures range from 1650 to 2100 °C. Specimens with various density levels are obtained when performing single-die SPS at different temperatures. Besides the single-die tooling setup, a double-die tooling setup is employed to largely increase the actual applied pressure to achieve higher densification in a shorter processing time. In order to describe the densification mechanism of ZrC powder under SPS conditions, a power-law creep constitutive equation is utilized, whose coefficients are determined by the inverse regression of the obtained experimental data. The densification of the selected ZrC powder is shown to be likely associated with grain boundary sliding and dislocation glide controlled creep. Transverse rupture strength and microhardness of sintered specimens are measured to be up to 380 MPa and 24 GPa, respectively. Mechanical properties are correlated with specimens’ average grain size and relative density to elucidate the co-factor dependencies.
Режим доступа: по договору с организацией-держателем ресурса
Språk:engelska
Publicerad: 2015
Serie:Manufacturing Processes and Systems
Ämnen:
электронный ресурс
труды учёных ТПУ
карбид циркония (ZrC)
искровое плазменное спекание
степенные законы
ползучесть
прочность
разрыв
микротвердость
Länkar:http://dx.doi.org/10.3390/ma8095289
Materialtyp: Elektronisk Bokavsnitt
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=644241

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