![]() ![]() Meanwhile, the Ca 2Sn 2- xAl 2O 9-2 x ( x = 0.08) ceramic achieved optimal microwave dielectric properties ( ε r = 8.3, Q × f = 105,700 GHz at 12.99 GHz and τ f = −63.7 ppm/☌), indicating the good feature of this material for millimetre-wave applications. The Ca 2Sn 2- xAl 2O 9-2 x (0 ≤ x ≤ 0.1) ceramics presented large negative τ f values, and this τ f was mainly affected by τ ε. The large deviation between measured Q × f values and fitted intrinsic Q × f values could be ascribed to the Sn 4+ vacancies of the Sn-deficient Ca 2Sn 2Al 2O 9 ceramics. Table 1 Size and surface properties of the whiskers Diffraction calculations by Digital Micrograph 3.7 and Carine Crystallography 3.1 software suggested. For multi-phase Ca 2Sn 2- xAl 2O 9-2 x (0 ≤ x ≤ 0.06) ceramics, their microwave dielectric properties were mainly affected by second phase contents, and their Q × f values increased gradually with the rise in x. Single-phase Ca 2Sn 2Al 2O 9 ceramics were obtained at 0.08 ≤ x ≤ 0.1, and the orthorhombic structure with the Pbcn space group of Ca 2Sn 2Al 2O 9 was verified. The CaSnO 3 and SnO 2 second phases existed at Ca 2Sn 2- xAl 2O 9-2 x ( x = 0) ceramic. ![]() Este programa se distribuye con licencia shareware. El producto que est a punto de descargar es autntico y no ha sufrido ningn tipo de cambio o modificacin por nuestra parte. Va a descargar CaRIne Crystallography, versin 3.1. Va a descargar CaRIne Crystallography, versión 3.1. The most popular versions among CaRIne Crystallography users are 4.0 and 3.1. Gracias por descargar CaRIne Crystallography desde nuestra librera de programas. Gracias por descargar CaRIne Crystallography desde nuestra librería de programas. While no ω (hexagonal) phase was found in shock-recovered pure Ta and Ta-5W that contain mainly a low-energy cellular dislocation structure, shock-induced ω phase was found to form in Ta-10W that contains evenly distributed dislocations with a stored dislocation density higher than 1 x 10 12 cm -2.The phase compositions and microwave dielectric properties of Sn-deficient Ca 2Sn 2Al 2O 9 ceramics in this study were explored. Download CaRIne Crystallography 3.1 from our software library for free. Recent TEM studies of deformation substructures developed in tantalum and tantalum-tungsten alloys shock-deformed at a peak pressure ,Ī TEM study of pure tantalum and tantalum-tungsten alloys explosively shocked at a peak pressure of 30 GPa (strain rate: ~1 x 10 4 sec -1) is presented. ![]()
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