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Akademický článek

Thermodynamic Assessment of Mushy Zone in Directional Solidification

Autor: Mikołajczak P., Ratke L.

Publikováno v: Archives of Foundry Engineering, Vol 15, Iss 4, Pp 101-109 (2015)

Solidification of AlSiFe alloys was studied using a directional solidification facility and the CALPHAD technique was applied to calculate phase diagrams and to predict occurring phases. The specimens solidified by electromagnetic stirring showed seg

Externí odkaz: https://doaj.org/article/b653a66d84a944efad393809b82ee737

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Akademický článek

Three Dimensional Morphology of β-Al5FeSi Intermetallics in AlSi Alloys

Autor: Mikołajczak P., Ratke L.

Publikováno v: Archives of Foundry Engineering, Vol 15, Iss 1, Pp 47-50 (2015)

Iron is the most common and detrimental impurity in casting alloys and has been associated with many defects. The main consequence of the presence or adding of iron to AlSi alloys is the formation Fe-rich intermetallics with especially deleterious β

Externí odkaz: https://doaj.org/article/2cd62dfb26ac4a33b24a22ff5af8cc50

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Sol-Gel Derived Ferroelectric Nanoparticles Investigated by Piezoresponse Force Microscopy

Autor: Johann, F., Jungk, T., Lisinski, S., Hoffmann, Á., Ratke, L., Soergel, E.

Publikováno v: Appl. Phys. Lett. 95, 202901 (2009)

Piezoresponse force microscopy (PFM) was used to investigate the ferroelectric properties of sol-gel derived LiNbO$_3$ nanoparticles. To determine the degree of ferroelectricity we took large-area images and performed statistical image-analysis. The

Externí odkaz: http://arxiv.org/abs/1009.1895