Abstract

Non-aqueous tape-casting forming technology was used in the fabrication of highly-transparent aluminum oxynitride (AlON) ceramics with different sizes and shapes. The tape-casting process utilizes the warm-pressing and the cold isostatic pressing methods, which can optimize the microstructure and increase the density of the AlON green tapes. In this work, highly-transparent AlON ceramics were fabricated by the pressureless sintering method at 1880 °C for 8 h. The transmittance of final polished AlON ceramic reaches 84 % at the wavelength of 2000 nm.

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