Atomic and superatomic structures of solid solutions of zirconium and calcium oxides

Bogdanov S.G.; Dorofeev Y.A.; Pirogov A.N.; Skryabin Y.N.; Teplykh A.E.; Sharygin L.M.

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Atomic and superatomic structures of solid solutions of zirconium and calcium oxides

机译：锆和氧化钙固溶体的原子和超原子结构

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Solid solutions of the ZrO_2-CaO system with 7, 9. 6, and 20 mol % of calcium oxide are analyzed by X-ray and neutron diffraction and small-angle neutron scattering. Samples are synthesized by the sol-gel method and annealed at the temperature T = 600°C for 4 h. All samples have a tetragonal structure (P4_2mc space group). The size of crystallites is 10-20 nm. Small-angle neutron scattering curves are characterized by a peak near the momentum transfer q = 0. 5 nm~(-1). The existence of the peak is caused by correlation between solid nanoparticles in the samples. Density correlation functions are numerically computed from the experimental small-angle scattering cross-sections by the inverse Fourier transform. Correlation lengths, concentrations of scattering nanoparticles, and specific surface areas of the samples are determined.

机译：通过X射线和中子衍射以及小角度中子散射分析了具有7、9、6和20 mol％氧化钙的ZrO_2-CaO系统的固溶体。通过溶胶-凝胶法合成样品，并在温度T = 600°C下退火4小时。所有样品均具有四方结构（P4_2 / nmc空间群）。晶粒的尺寸是10-20nm。小角中子散射曲线的特征是在动量传递q = 0. 5 nm〜（-1）附近有一个峰。峰的存在是由样品中固体纳米颗粒之间的相关性引起的。通过逆傅立叶变换从实验的小角度散射横截面数值计算密度相关函数。确定相关长度，散射纳米颗粒的浓度和样品的比表面积。

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《Journal of surface investigation: x-ray, synchrotron and neutron techniques》 |2011年第3期|共7页
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Bogdanov S.G.; Dorofeev Y.A.; Pirogov A.N.; Skryabin Y.N.; Teplykh A.E.; Sharygin L.M.;
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中图分类原子核物理学、高能物理学;
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机译：锆和氧化钙固溶体的原子和超原子结构
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Atomic and superatomic structures of solid solutions of zirconium and calcium oxides

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