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Farina Erica Gastaldi Dario Baino Francesco Vernè Enrica Massera Jonathan Orlygsson Gissur Vena Pasquale 《Acta Mechanica Sinica》2021,37(2):292-306
Acta Mechanica Sinica - In this study, the mechanical properties of glass scaffolds manufactured by robocasting are investigated through micro computed tomography ( $$\mu -CT$$ ) based finite... 相似文献
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Zr6STe2 – a Zirconium‐rich Sulfide Telluride with a Zr3Te Partial Structure of the Re3B Type Zr6STe2 is accessible through the reduction of a mixture of ZrTe2 and ZrS2 with zirconium in fused tantalum tubes at 1520 K. The spatially averaged crystal structure of Zr6STe2 is described in the space group Cmcm, a = 377.81(4), b = 1156.4(1), c = 887.96(8), Z = 2, Pearson symbol oC18, 320 reflexions (I > 2σ(I)), 22 variables, Rw(I) = 0.088. Zr6STe2 crystallizes in a unique structure type, which can be seen as a filled Re3B type structure. The tellurium atoms are surrounded by nine zirconium atoms situated at the vertices of a distorted, tricapped trigonal prism. The Zr9Te tetrakaidecahedra are connected by common triangular prism faces parallel [100], edges approximately along [001] and common vertices along [010], thus forming a three‐dimensional tetrakaidecahedral network [Zr9/3Te], which is decisively stabilized by homonuclear Zr–Zr‐interactions. The tetrakaidecahedra are arranged in such a way, that Zr6 octahedra occur. The octahedra are arranged into layers by sharing edges parallel [100] and vertices along [001]. As a result of a distortion of the structure, every second octahedron is expanded to such an extent as to be able to smoothly accommodate sulfur atoms. According to the modulation of the diffraction intensities, the vacancy ordering in adjacent layers of octahedra occurs independently of each other. 相似文献
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