2008
DOI: 10.1016/j.jeurceramsoc.2007.09.002
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Dense nanostructured zirconia by two stage conventional/hybrid microwave sintering

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Cited by 110 publications
(72 citation statements)
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“…For example, research on the firing of zinc oxide varistors yielded results that showed that hybrid sintered devices exhibited more homogeneous and finer microstructures that exhibited superior electrical properties [15]. In addition, the combination of hybrid heating with a new firing strategy known as two stage sintering [16] has yielded the ability to achieve nanostructured zirconia with densities >99.5% of theoretical whilst retaining final average grain sizes as fine as just 65 nm using precursor nanopowders with an average grain size of ~16 nm [17], figure 3. In other words, keeping grain growth during densification to just approximately a factor of 4, a remarkable achievement using a pressureless sintering approach, especially for components up to 50 mm in diameter.…”
Section: Mixing In High Loss Additivesmentioning
confidence: 99%
“…For example, research on the firing of zinc oxide varistors yielded results that showed that hybrid sintered devices exhibited more homogeneous and finer microstructures that exhibited superior electrical properties [15]. In addition, the combination of hybrid heating with a new firing strategy known as two stage sintering [16] has yielded the ability to achieve nanostructured zirconia with densities >99.5% of theoretical whilst retaining final average grain sizes as fine as just 65 nm using precursor nanopowders with an average grain size of ~16 nm [17], figure 3. In other words, keeping grain growth during densification to just approximately a factor of 4, a remarkable achievement using a pressureless sintering approach, especially for components up to 50 mm in diameter.…”
Section: Mixing In High Loss Additivesmentioning
confidence: 99%
“…As received aqueous suspensions of nano yttria partially stabilised zirconia powders containing 0, 1.5, 2 and 3 mol% yttria and with ~5 vol% solids content (MEL Chemicals, Manchester, UK), were concentrated using a patented technique 25,26 to ~20 vol% solid content and slip cast into 15 mm dia. plaster of Paris (Millecast, Lafarge Prestia, Mériel, France) moulds.…”
Section: Methodsmentioning
confidence: 99%
“…En nuestro caso, el aluminosilicato de litio (LAS) es un material dieléctrico absorbente de microondas desde temperaturas bajas (∼25 ºC) hasta altas temperaturas (>1200 ºC). Este hecho resulta una importante ventaja frente a otros materiales cerámicos donde las propiedades intrínsecas del material hace que sean, o bien transparentes a las microondas (tipo la alúmina), o bien absorbentes solo a alta temperatura (tipo la circona) (21,22). Lo cual hace que sea necesario el uso de susceptores, como el carburo de silicio, para poder sinterizar el material en cuestión.…”
Section: Conclusionesunclassified