The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We have extended the calculation procedure to cylindrical samples of anisotropic crystals for RUSpec measurements. The deformation is expressed with Chebyshev polynomials and the Rayleigh-Ritz method is used. We concentrated on anisotropic materials which can be more complicated for the formulation of vibration frequencies. The formulation is angular dependent with cylindrical coordinates. The calculation...
Cylinders of elastic solids are widely used in various mechanical and electrical structures for many purposes including structural and functional elements. Vibrations of cylinders are of interests for the optimal design and enhanced performance through the consideration of structural and material parameters. By extending earlier work on free vibrations of an elastic cylinder based on the expansion...
Pentaerythritol (PE) is a solid-solid phase change material with large latent heat. To improve its performance of thermal storage, nano-SiB6 particles were physically mixed into PE as nucleating agent with contents of 1 wt%, 3wt%, 5wt%, respectively. FTIR analysis was performed for pure PE, nano-SiB6 and the composites. The results show that there are no valence bonds between PE and nao-SiB6, and...
In this paper, green microfibers of barium titanate precursor were prepared by the combination of Sol-Gel processing and Gel-spinning technique. The piezoelectric microfibers of ceramic BaTiO3 were sintered, with diameter of 15μm and length of 20mm, respectively. Interdigitated electrodes were printed on an epoxy resin substrate. BaTiO3 microfibers were then aligned on the interdigitated electrodes...
The rotating machinery for engineering process and materials science has become faster and lightweight recently. The machinery has been required to run for longer periods of time and reliable operations. Because machine breakdowns and consequent down times severely affect the productivity of factories or the safety of products and process success depends on the reliability and the efficiency of related...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.