Microstructure and mechanical properties of porous alumina ceramic prepared by a combination of 3–D printing and sintering. Issue 10 (1st August 2016)

• Record Type: Journal Article
• Authors: Li, Xiangming; Gao, Mingjun; Jiang, Yun
• Is Part Of: Ceramics international. Volume 42:Issue 10(2016)
• Page Start: 12531
• Page End: 12535
• Publication Date: 2016-08-01
• Subjects: 3–D printing -- Alumina -- Porous -- Microstructure -- Mechanical properties; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2016.05.027
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Porous alumina ceramic was prepared with a combined technique of three–dimensional printing and sintering. The optimal sintering temperature for porous alumina ceramic is in the range of 1300–1400 °C. The CaSO4 –dextrin content of green body has a decisive effect on the phase composition and flexural strength but a little effect on the porosity and Vickers hardness of porous alumina ceramic. The alumina ceramic prepared from the green body with CaSO4 –dextrin content in the range of 12–16 wt% possesses a flexural strength higher than 80 MPa, a porosity of about 50% and a tailored microstructure, which is a promising material for engineering applications.