An easy approach to manufacture high quality zirconia-toughed alumina

Autor:	Jong-Jin Choi, Cheol-Woo Ahn, Young-Rae Cho, Joon-Hwan Choi, Geon-Tae Hwang, Byung-Dong Hahn, Byeong-Min Ahn, Yuho Min, Woong-Kyeong Seong
Rok vydání:	2020
Předmět:	Nanocomposite Quality (physics) Thermal conductivity Materials science Flexural strength Mechanics of Materials Mechanical Engineering General Materials Science Cubic zirconia Composite material Condensed Matter Physics Microstructure Yttria-stabilized zirconia
Zdroj:	Materials Science and Engineering: A. 784:139328
ISSN:	0921-5093
Popis:	Zirconia-toughened alumina (ZTA) is used to release the heat generated in electronic components, since it shows the high thermal conductivity of 23–27 W/mK and the excellent flexural strength of 550–700 MPa. However, it has not been reported how the high quality ZTA can be manufactured, in the literature. In this manuscript, an interesting approach is described to manufacture a high quality ZTA. The high quality ZTA can be manufactured by contaminating the surface of alumina particles with YSZ using a ball-milling process. It shows the microstructure of a nanocomposite composed of Nb-doped YSZ and alumina. Consequently, the high quality ZTA has the high thermal conductivity of 27.5 W/mK and the excellent flexural strength of 732 MPa similar to those of a commercial ZTA.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a4565cc753847394bbb7e61c16cac3a5 https://doi.org/10.1016/j.msea.2020.139328 Zobrazit plný text záznamu Full Text from ScienceDirect