Direct Fabrication of Bulk Nanostructured Ceramic from Nano-Al2O3 Powders by Selective Laser Sintering
Nanostructured ceramic bulk materials were achieved from nano-Al2O3 ceramic powders via direct selective laser sintering (SLS). SLS as a non-traditional machining technology of Rapid Prototyping was introduced and compared with other ceramic forming technologies. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were applied to analyze the microstructure of the ceramic bulk materials. These results demonstrated that the nano-Al2O3 ceramic powders can be sintered into bulk materials maintained nanostructure with some technological parameters. It was found that the nanostructured ceramic bulk exhibited unique microstructure and was free formed rapidly by this sintering technology.
Dongming Guo, Tsunemoto Kuriyagawa, Jun Wang and Jun’ichi Tamaki
L. D. Shen et al., "Direct Fabrication of Bulk Nanostructured Ceramic from Nano-Al2O3 Powders by Selective Laser Sintering", Key Engineering Materials, Vol. 329, pp. 613-618, 2007