Fabrication of highly transparent AlON ceramics by hot isostatic pressing post-treatment. Issue 13 (October 2017)

• Record Type: Journal Article
• Authors: Jiang, Nan; Liu, Qiang; Xie, Tengfei; Ma, Peng; Kou, Huamin; Pan, Yubai; Li, Jiang
• Is Part Of: Journal of the European Ceramic Society. Volume 37:Issue 13(2017)
• Page Start: 4213
• Page End: 4216
• Publication Date: 2017-10
• Subjects: AlON transparent ceramics -- Optical transparency -- Hot isostatic pressing -- Microstructure; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2017.04.028
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: Highly transparent aluminum oxynitride (AlON) ceramics were fabricated by pressureless sintering with hot isostatic pressing (HIP) post-treatment. The experimental results showed that the optical transparency of AlON ceramics was improved markedly over the visible and near-infrared range by HIP at 1825 °C for 3 h in 200 MPa argon gas, which derived from the elimination of residual pores in the prepared ceramics. For AlON ceramics pre-sintered at 1800 °C, the transmittances of the sample increased from 63.6% to 84.8% at 600 nm and from 75.4% to 86.1% at 2000 nm, respectively. The average grain size of the HIPed sample was about 47.9 μm.