Effect of Nanosized Particles on the Mechanical Properties of Y2O3

Hadi Razavi Khosroshahi; Xin Liu; Noritaka Saito; Kunihiko Nakashima; Kenji Kaneko

doi:10.4028/www.scientific.net/MSF.750.44

Paper Titles

Residual Stress in Oxide on NiCrAlY Coating Evaluated by Photoluminescence Spectroscope
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Preparation of Ni-P-Al₂O₃ Composite Film on Mild Steel with High Resistance to Corrosion and Wear
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Effects of Minor Si Addition on Glass Formation and Thermal Stability of Ni Free Ti-Based Bulk Metallic Glass
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Influence of Carbon Reinforcements on the Mechanical Properties of Ti Composites via Powder Metallurgy and Hot Extrusion
p.40

Effect of Nanosized Particles on the Mechanical Properties of Y₂O₃
p.44

Three-Dimensional Characterization of BaZrO₃ Precipitates in Y_1-xGd_xBa₂Cu₃O_7-y Prepared by TFA-MOD Using STEM-Tomography
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Ti-Based Bulk Metallic Glass Composites Produced by Spark Plasma Sintering
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Fabrication of Cu Nanowires and its Effect on Proliferation of Mesenchymal Stem Cells
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Electrochemical Behavior of AZ Magnesium Alloy Containing Rare Earth Element
p.60

HomeMaterials Science ForumMaterials Science Forum Vol. 750Effect of Nanosized Particles on the Mechanical...

Effect of Nanosized Particles on the Mechanical Properties of Y₂O₃

Abstract:

A systematic series of experiments was performed to determine the optimum firing schedule of Y2O3. A two-step sintering with subsequent profile succeeded to fabricate Y2O3 ceramic with the relative density of 97.6% and the average grain size of 0.46 μm: first step and second step temperature of T1 = 1490 °C and T2 = 1350 °C, respectively and second step holding time of t2 = 20 h. After the firing schedule of pure Y2O3 was determined, two types of TiO2/Y2O3 and ZrO2/Y2O3 composites were fabricated for the further improvement of mechanical properties. According to results, ZrO2/Y2O3 composite showed a dramatic increase in strength and toughness as 417 MPa and 4.4 MPa.m1/2, respectively.