The Effect of Yb2O3 Addition on Sintering of MgO Ceramic

Sen Wang; Zhi Hui Li; Xin Liu; Huan Zhang

doi:10.4028/www.scientific.net/AMR.284-286.1335

Paper Titles

Study on Preparation and Characterization of YAG Ceramic Synthesized by Co-Precipitation
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Preparation of Fine Ag₂WO₄ Antibacterial Powders and Its Application in the Sanitary Ceramics
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Preparation and Characterization of Zircon Ceramic Doped with Cerium
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Potential Applications of Foam Ceramics in Gas Explosion Prevention
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The Effect of Yb₂O₃ Addition on Sintering of MgO Ceramic
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Fabrication of High-Porosity Silicon Nitride Ceramics with Excellent Mechanical Properties
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Effects of Second Phase and Defect on Electrical Properties in Bi_0.5Na_0.5-xK_xTiO₃ Lead-Free Piezoelectric Ceramics
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Effect of Compound Additives of Li₂O-B₂O₃-SiO₂ Glass and LiF on the Properties of CaO-Li₂O-Sm₂O₃-TiO₂ Ceramics
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Characterization and Mechanical Properties of TiN/O′-Sialon Ceramics Prepared from High Titania Slag
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The Effect of Yb₂O₃ Addition on Sintering of MgO Ceramic

Abstract:

The effect of Yb₂O₃ addition on sintering of MgO ceramics was studied in this work. Increasing of Yb₂O₃ addition is helpful to densification and grain growth. The effect of Yb₂O₃ amount on densification decreased when the sintering temperature was increased from 1400°C to 1550°C. Quick densification and rapid grain boundary mobility in Yb₂O₃ doped samples come from the point defect because the dopant mainly located at the grain boundary, and this is meaningful for grain growth and densification. The results also illustrate that sintering time and sintering temperature would noticeably affect grain growth and densification process, which is not related to the amount of Yb₂O₃ addition.