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2 Acta Physica Polonica A

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Characteristic Properties of Dy-Eu-Ce Co-Doped ZrO₂ Nanofibers Fabricated via Electrospinning

100%

Çıçek Bezır N. , Evcın A. , Kayali R. , Kaşikçi Özen M. , Esen K. , Cambaz E.

nr 1

300-303

Zirconium oxide (ZrO₂) is one of the widely studied oxide materials because of its excellent electrical, mechanical and optical properties. In this study, undoped and Dy-Eu-Ce co-doped ZrO₂ nanofibers were fabricated by electrospinning method and their crystal structure, surface morphology, optical properties, electrical and electronic properties, and chemical properties have been analyzed using X-ray diffraction, scanning electron microscope (SEM), UV/VIS spectrometer, four point probe technique (FPPT) energy dispersive X-ray (EDX) measurements, respectively.

Production of Barite and Boroncarbide Doped Radiation Shielding Polymer Composite Panels

100%

Evcın O. , Evcın A. , Bezır N. , Akkurt İ. , Günoğlu K. , Ersoy B.

Acta Physica Polonica A

2017

tom 132

nr 3

1145-1148

Developments in nuclear technology in the last century have lead to the use of radiation in different areas of human activity. These are not just the energetics but also food, agriculture, medicine, industry and science. Thus, radiation has become an inevitable phenomenon in our lives. Since we cannot isolate radiation from our life, the radiation protection methods should be available. As alternatives to conventional radiation prevention methods, such as lead and heavy concrete shielding, more functional materials need to become the focus of research. The development of the least harmful to the environment, easily applicable, flexible radiation shields has become very important. In this study, silicon matrix composite panels, doped with different ratios of barite and boron carbide, were produced and characterized by optical and scanning electron microscopy (SEM). Gamma and neutron radiation shielding properties of these materials were investigated. The results have been compared with the lead as the standard shielding material.