Search results for: Karol Kowal

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Magnetoelectric Effect in Ceramics Based on Bismuth Ferrite

Elżbieta Jartych, Tomasz Pikula, Karol Kowal, Jolanta Dzik, more

Nanoscale Research Letters > 2016 > 11 > 1 > 1-8

Solid-state sintering method was used to prepare ceramic materials based on bismuth ferrite, i.e., (BiFeO₃)_1 − x–(BaTiO₃)_x and Bi_1 − xNd_xFeO₃ solid solutions and the Aurivillius Bi₅Ti₃FeO₁₅ compound. The structure of the materials was examined using X-ray diffraction, and the Rietveld method was applied to phase analysis and structure...

article

An application of the value tree analysis methodology within the integrated risk informed decision making for the nuclear facilities

Mieczysław Borysiewicz, Karol Kowal, Sławomir Potempski

Reliability Engineering and System Safety > 2015 > 139 > Complete > 113-119

A new framework of integrated risk informed decision making (IRIDM) has been recently developed in order to improve the risk management of the nuclear facilities. IRIDM is a process in which qualitatively different inputs, corresponding to different types of risk, are jointly taken into account. However, the relative importance of the IRIDM inputs and their influence on the decision to be made is...

article

Structure and some magnetic properties of (BiFeO₃)_x-(BaTiO₃)_1−x solid solutions prepared by solid-state sintering

Karol Kowal, Maciej Kowalczyk, Dionizy Czekaj, Elżbieta Jartych

Nukleonika > 2015 > 60 > 1 > 81-85

This paper presents the results of the study on structure and magnetic properties of the perovskite-type (BiFeO₃)_x-(BaTiO₃)₁₋_x solid solutions. The samples differing in the chemical composition (x = 0.9, 0.8, and 0.7) were produced according to the conventional solid-state sintering method from the mixture of powders. Moreover, three different variants of the fabrication process differing in the temperatures...

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Search results for: Karol Kowal

Magnetoelectric Effect in Ceramics Based on Bismuth Ferrite

An application of the value tree analysis methodology within the integrated risk informed decision making for the nuclear facilities

Structure and some magnetic properties of (BiFeO3)x-(BaTiO3)1−x solid solutions prepared by solid-state sintering

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Structure and some magnetic properties of (BiFeO₃)_x-(BaTiO₃)_1−x solid solutions prepared by solid-state sintering