ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The effect of sintering condition, sandblasting and heat treatment on biaxial flexurestrengths of the zirconia/ alumina nanocomposite stabilized with cerium oxide (Ce-TZP/Al2O3nanocomposite, referred to NANOZR) was evaluated in comparison to that of yttria stabilizedtetragonal zirconia polycrystals (Y-TZP). The disc-shaped specimens of NANOZR and Y-TZPwere cut from the full-sintered or middle-sintered ones. The discs cut from the middle-sinteredones were finally sintered at the same temperature for the full-sintered one. These four kinds ofdisc were treated in various conditions combined with the sandblasting, the heat treatment, and thestorage. The biaxial flexure strength of both middle- and full-sintered Y-TZP decreased with theautoclaving, whereas those of both NANOZR did not change with it. The monoclinic content ofboth the materials increased with the sandblasting and decreased with the heat treatment.Regardless of the sintering condition, the monoclinic content of the Y-TZP dramatically increasedwith the autoclaving and those of NANOZR remarkably increased with the sandblasting.Regardless of the different surface roughness, the biaxial flexure strengths of both materialsstrongly depended on the content of monoclinic ZrO2 on the surface
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.361-363.779.pdf
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