English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In the current paper we present a study of the sinterability of two zirconia   (ZrO2) nanopowders with different content of yttrium oxide (Y2O3) 3 and 8 %   tetragonal and cubic zirconia, respectively. After sintering between   900-1500ºC, the samples were characterized in terms of their density and   porosity using Archimedes technique. Their grain size was evaluated using   scanning electron microscope (SEM). Vickers hardness and fracture toughness   (KIC) were measured by the indentation method. The results showed that pores   are almost eliminated at sintering temperatures higher than 1400ºC and grain   size is larger due to the agglomerates formed as a result of grain growth.   Vickers hardness evaluated at 1400ºC sintering temperature is greater than   that obtained at 1500ºC due to the grain growth produced at this   temperature. In addition, we show a correlation between Vickers hardness and   the porosity, obtained by evaluating empirical and theoretical models

Relation between mechanical and textural properties of dense materials of tetragonal and cubic zirconia