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http://earchive.tpu.ru/handle/11683/36539
Title: | Effects of transient thermal shock loadings on the structure of zirconia ceramics |
Authors: | Derkach, E. A. Buyakova, Svetlana Petrovna Kulkov, Sergey Nikolaevich |
Keywords: | тепловые нагрузки; ударные нагрузки; циркониевая керамика; микроструктуры; фазовые превращения; фазовые составы; рентгеновское рассеяние |
Issue Date: | 2016 |
Publisher: | IOP Publishing |
Citation: | Derkach E. A. Effects of transient thermal shock loadings on the structure of zirconia ceramics / E. A. Derkach, S. P. Buyakova, S. N. Kulkov // IOP Conference Series: Materials Science and Engineering. — 2016. — Vol. 156 : Materials and Technologies of New Generations in Modern Materials Science : International Conference and Youth Scientific School, 9–11 June 2016, Tomsk, Russia : [proceedings]. — [012029, 5 p.]. |
Abstract: | In this paper the influence of thermal shock loadings on the phase composition and microstructure of ZrO[2](Y[2]O[3]) and ZrO[2](MgO) ceramics was studied. It was found that thermal shock strains were no effect on phase composition of ZrO[2](Y[2]O[3]) ceramics. Reducing the concentration of high-temperature tetragonal t-ZrO[2] and cubic c-ZrO[2] modifications and rising the content of low-temperature monoclinic m-ZrO[2] crystal system with increasing the number of thermal shock strains were observed. The values of region coherent X-ray scattering of ZrO[2](Y[2]O[3]) ceramics didn't changed, while the crystallite size of ZrO[2](MgO) ceramics decreased. The formation of block structure in all studied ceramics was observed, the sizes of the blocks formed in the ZrO[2](Y[2]O[3]) and ZrO[2](MgO) ceramics were slightly different. The formation of the blocks in ZrO[2](Y[2]O[3]) ceramics occurred on the grain boundaries, while the crystallites in ZrO[2](MgO) ceramics were crushed due to phase transformation. |
URI: | http://earchive.tpu.ru/handle/11683/36539 |
Appears in Collections: | Материалы конференций |
Files in This Item:
File | Description | Size | Format | |
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dx.doi.org-10.1088-1757-899X-156-1-012029.pdf | 1,18 MB | Adobe PDF | View/Open |
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