Wollastonite based-Chemically Bonded Phosphate Ceramics with lead oxide contents under gamma irradiation
| Autor: | Jenn-Ming Yang, Carlos H. Castano, Henry A. Colorado, C. Hiel, H. T. Hahn, J. Pleitt |
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| Rok vydání: | 2012 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Scanning electron microscope Mineralogy engineering.material Microstructure Wollastonite Amorphous solid chemistry.chemical_compound Nuclear Energy and Engineering chemistry Chemical engineering visual_art Electromagnetic shielding visual_art.visual_art_medium engineering General Materials Science Ceramic Phosphoric acid Lead oxide |
| Zdroj: | Journal of Nuclear Materials. 425:197-204 |
| ISSN: | 0022-3115 |
| DOI: | 10.1016/j.jnucmat.2011.08.043 |
| Popis: | The shielding properties to gamma rays as well as the effect of lead concentration incorporated into Chemically Bonded Phosphate Ceramics (CBPCs) composites are presented. The Wollastonite-based CBPC was fabricated by mixing a patented aqueous phosphoric acid formulation with Wollastonite powder. CBPC has been proved to be good structural material, with excellent thermal resistant properties, and research already showed their potential for radiation shielding applications. Wollastonite-based CBPC is a composite material itself with several crystalline and amorphous phases. Irradiation experiments were conducted on different Wollastonite-based CBPCs with lead oxide. Radiation shielding potential, attenuation coefficients in a broad range of energies pertinent to engineering applications and density experiments showing the effect of the PbO additions (to improve gamma shielding capabilities) are also presented. Microstructure was identified by using scanning electron microscopy and X-ray diffraction. |
| Databáze: | OpenAIRE |
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