Papers by Author: Zhi Lin

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Authors: Jun Pin Lin, Xiang Jun Xu, Jian Feng Gao, Yan Li Wang, Zhi Lin, Guo Liang Chen
Abstract: . A hot working and its effect on the microstructure and tensile properties of Ti-45Al-9 (Nb, W, B, Y) alloy ingot on industrial scale were investigated. The results showed that the alloy has good workability in anα+γphase region. An ingot on industrial scale was successfully extruded followed by multi-step canned forging. The initial microstructure of the alloy is fine full lamellar (FL) microstructure. After hot working a sound pancake exhibiting a fine grain duplex (DP) microstructure with grain size about 20μm was obtained. The as-forged alloy has more balanced tensile properties than the small heats with similar composition and microstructure at both room and high temperatures.
Authors: João Rocha, Luís D. Carlos, Artur Ferreira, José P. Rainho, Duarte Ananias, Zhi Lin
Authors: Zhi Lin, José P. Rainho, João Rocha, Luís D. Carlos
Abstract: The thermal transformation of Eu3+-doped and undoped microporous titanosilicate AM-3 has been reported. AM-3 is stable up to 600 °C and transforms into the analogue of the mineral narsarsukite at 800 °C. The narsarsukite obtained from AM-3 is purer than that prepared from the titanosilicates ETS-10, ETS-4 and AM-1, and is suitable for hosting optically-active Ln3+ ions. The materials have been studied by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS), solid-state magic-angle spinning nuclear magnetic resonance (MAS NMR), Raman and photoluminescence pectroscopies.
Authors: Artur Ferreira, Zhi Lin, Maria do Rosário Soares, J. Rocha
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