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Reports from Nanomaterials Research Center Add New Data to Findings in Ceramics

February 18, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators publish new report on Ceramics. According to news reporting originating from Nanchang, People's Republic of China, by NewsRx correspondents, research stated, "A novel glass amorphous silica composite coating was prepared by the slurry method in order to improve the oxidation resistance of Ti-6Al-4V alloy at high temperatures. The microstructure of the as-prepared composite coating was analyzed by SEM, XRD and EDS techniques."

Our news editors obtained a quote from the research from Nanomaterials Research Center, "The oxidation resistance and the microstructure evolution of the composite coating at 800 degrees C for 50 h were also studied. The results show that mass gains of the specimens coated with the composite coating were far less than that of the uncoated ones after oxidation of 50 h. Thick oxide scales composed of plate-like rutile TiO2 and some granular alpha-Al2O3 formed on bare Ti-6Al-4V alloy, while quartz, cristobalite and diopside were observed in the composite coating, which are useful crystals for slowing the inward diffusion of oxygen to the substrate. The cross-sectional EDS line scanning images show that inward diffusion of oxygen and outward diffusion of Ti through the composite coating were insignificant."

According to the news editors, the research concluded: "The microhardness profile reveals that the solid solution oxygen in Ti-6Al-4V alloy with composite coating was limited."

For more information on this research see: Oxidation protection of Ti-6Al-4V alloy using a novel glass-amorphous silica composite coating. Ceramics International, 2014;40(2):3503-3509. Ceramics International can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier -; Ceramics International -

The news editors report that additional information may be obtained by contacting Z.Q. Xiao, Nanchang Inst Technol, Nanomat Res Center, Nanchang 330013, Jiangxi, People's Republic of China. Additional authors for this research include F.T. Tan, W. Wang, F.Z. Sun, H.F. Lu, X.L. Qiu, J.G. Chen and X.L. Qiao (see also Ceramics).

Keywords for this news article include: Asia, Nanchang, Ceramics, Chalcogens, People's Republic of China

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Source: Life Science Weekly

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