Sintering Behavior and Optical Properties of Yttria

Bernard‐Granger, Guillaume; Guizard, C.; San-Miguel, Laurie

doi:10.1111/j.1551-2916.2007.01759.x

Cited by 55 publications

(32 citation statements)

References 20 publications

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“…The evolution of the absolute densification rate (1/D Á dD/dt) in function of temperature is rather complex in comparison with what is usually observed with other materials, where only one clear peak is observed. [35][36][37] For the spinel investigated here, five peaks or shoulders are visible (A, B, C, D, and E labels on Fig. 4).…”

Section: May 2011mentioning

confidence: 92%

Sintering Analysis of a Fine-Grained Alumina-Magnesia Spinel Powder

Benameur

Bernard‐Granger

Addad

et al. 2011

Journal of the American Ceramic Society

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Pressureless sintering in air of a fine‐grained alumina–magnesia spinel (MgAl2O4) powder has been investigated using anisothermal and isothermal methods. Grain growth is controlled by the grain boundaries and densification is controlled by volume diffusion or grain‐boundary diffusion (no possibility to do a distinction). The apparent activation energies measured for grain growth and densification are 1100±50 and 915±50 kJ/mol, respectively. Grain boundaries and triple points have a different composition than the core of spinel grains. This could be the reason for the exceptionally high values of activation energies measured for grain growth and densification.

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Section: May 2011mentioning

confidence: 92%

Sintering Analysis of a Fine-Grained Alumina-Magnesia Spinel Powder

Benameur

Bernard‐Granger

Addad

et al. 2011

Journal of the American Ceramic Society

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“…Although Y 2 O 3 transparent ceramic have been studied widely, ZrO 2 used as additive is less known to the best of our knowledge. 9 In this study, ZrO 2 was introduced as additive and Y 2 O 3 transparent ceramics were sintered in vacuum. The effect of ZrO 2 on the sinterability of the ceramic was investigated systematically to obtain the optimum ZrO 2 doping concentration.…”

Section: Introductionmentioning

confidence: 99%

Study on the effect and mechanism of zirconia on the sinterability of yttria transparent ceramic

Hou

Zhou

et al. 2010

Journal of the European Ceramic Society

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“…Nanopores were found to efficiently retard the grain growth in dense nanostructured ceramics subjected to SPS. 40,46,47 …”

Section: Grain Growthmentioning

confidence: 99%

Densification and preservation of ceramic nanocrystalline character by spark plasma sintering

Chaim

Marder

Estournès

et al. 2012

Advances in Applied Ceramics

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Spark plasma sintering is a hot pressing technique where rapid heating by dc electric pulses is used simultaneously with applied pressure. Thus, spark plasma sintering is highly suitable for rapid densification of ceramic nanoparticles and preservation of the final nanostructure. A considerable portion of the shrinkage during densification of the green compact of nanoparticles in the first and intermediate stages of sintering occurs during heating by particle rearrangement by sliding and rotation. Further densification to the final stage of sintering takes place by either plastic yield or diffusional processes. Full densification in the final stage of sintering is associated with diffusional processes only. Nanoparticle sliding and rotation during heating may also lead to grain coalescence, with much faster kinetics than normal grain growth at higher temperatures. Based on existing models for particle rearrangement and sliding, the contributions of these processes in conjunction with nanoparticle properties and process parameters were highlighted.

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Sintering Behavior and Optical Properties of Yttria

Cited by 55 publications

References 20 publications

Sintering Analysis of a Fine-Grained Alumina-Magnesia Spinel Powder

Sintering Analysis of a Fine-Grained Alumina-Magnesia Spinel Powder

Study on the effect and mechanism of zirconia on the sinterability of yttria transparent ceramic

Densification and preservation of ceramic nanocrystalline character by spark plasma sintering

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