Author: "Gu, Yunle" / Topic: optical diffraction and x-ray diffraction - Searchworks@Jio Institute Digital Library Search Results

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Start Over Author "Gu, Yunle" Topic optical diffraction Topic x-ray diffraction

Author: Chen, Luyang, Gu, Yunle, Shi, Liang, Yang, Zeheng, Ma, Jianhua, and Qian, Yitai
Subjects: *X-ray diffraction, *OPTICAL diffraction, *TRANSMISSION electron microscopy, *ELECTRON microscopy
Abstract: Vanadium nitride was synthesized by the reaction of VCl4 and NaNH2 at room temperature. X-ray powder diffraction could be indexed as cubic VN with the lattice constant of a=4.134Å. Transmission electron microscopy image showed particle and hollow sphere morphology. The optical properties of the as-prepared VN were investigated. [Copyright &y& Elsevier]
Published: 2004
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Author: Shi, Liang, Gu, Yunle, Qian, Tian, Li, Xiaoguang, Chen, Luyang, Yang, Zeheng, Ma, Jianhua, and Qian, Yitai
Subjects: *ELECTRON microscopy, *OPTICAL diffraction, *OPTICS, *TRANSMISSION electron microscopy
Abstract: Ultrafine magnesium diboride (MgB2) powders were successfully synthesized at 600 °C through a solid-state reaction. The synthesis was carried out in an autoclave by using MgCl2 and NaBH4 as the reactants. The X-ray powder diffraction pattern indicates the formation of hexagonal MgB2. Transmission electron microscopy image shows that typical MgB2 crystallites are composed of ultrafine particles with an average size of 300 nm. The superconducting transition of the MgB2 sample occurs at 39 K. [Copyright &y& Elsevier]
Published: 2004
Full Text: View/download PDF

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