放电等离子烧结
材料科学
制作
氧化钇稳定氧化锆
陶瓷
SPARK(编程语言)
等离子体
烧结
透明陶瓷
复合材料
光电子学
立方氧化锆
计算机科学
物理
病理
程序设计语言
替代医学
量子力学
医学
作者
Ece Korkmaz,Filiz Çınar Şahin
标识
DOI:10.12693/aphyspola.131.460
摘要
Rapid densification of yttria (Y2O3) ceramics without sintering aids via spark plasma sintering at relatively low temperature of 1300 • C for 40 minutes at two-step pressure profile, followed by post-annealing at 1050 • C for 6 hours in air was attempted.Effect of preload pressure on microstructure, Vickers hardness, fracture toughness and optical in-line transmittance was investigated.Densification during spark plasma sintering did not involve any phase transformation and all phases have shown cubic structure according to X-ray analysis.The highest hardness and fracture toughness value was recorded to be 7.60 ± 0.18 GPa and 1.16 ± 0.07 MPa m 1/2 with 10 MPa preload and 100 MPa final load.In addition to this, the highest transmittance with a value of 76.7% at a wavelength of 2000 nm was obtained when studied with 10 MPa preload and 100 MPa final load.
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