The preparation and properties of zirconia-doped Y–Si–Al–O–N oxynitride glasses and glass-ceramics
The preparation and properties of zirconia-doped Y–Si–Al–O–N oxynitride glasses and glass-ceramics
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DOI：
10.1016/j.ceramint.2013.04.082
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发表时间：
2013-12
影响因子：
5.2
通讯作者：
G. Qu;Zhiwei Luo;Weizheng Liu;A. Lu
中科院分区：
文献类型：
--
作者：
G. Qu;Zhiwei Luo;Weizheng Liu;A. Lu
设计了两个系列(N-9和N-18系列)的氧化锆掺杂Y-Si-Al-O-N氧氮化物玻璃和微晶玻璃。玻璃样品的名义成分(当量百分比)分别为：xZr：(24-0.25x)Y：(15-0.25x)Al：(61-0.5x)Si：91O：9：N和xZr：(24-0.25x)Y：(15-0.25x)Al：(61-0.5x)Si：82O：18：N(x=0，2，4，6)。用差热分析(DTA)、X射线衍射仪(XRD)、傅立叶变换红外光谱(FTIR)和扫描电子显微镜(SEM)对样品进行了表征。为每个样品建立了密度、维氏硬度、断裂韧性、玻璃化转变温度和热膨胀系数数据。研究了Zr、N含量对玻璃网状结构、热性能和力学性能的影响。结果表明，添加氧化锆可以有效地制备出玻璃化转变温度较低、硬度较高的Y-Si-Al-O-N氧氮化物玻璃。
Two series (N-9 and N-18 series) of zirconia-doped Y–Si–Al–O–N oxynitride glasses and glass-ceramics were designed. Nominal compositions of the glass samples in equivalent percent (eq%) arexZr: (24–0.25x)Y: (15–0.25x)Al: (61–0.5x)Si: 91O: 9 N andxZr: (24–0.25x)Y: (15–0.25x)Al: (61–0.5x)Si: 82O: 18 N (x=0, 2, 4, 6), respectively. The obtained samples were characterized by differential thermal analysis (DTA), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Densities, Vickers hardness, fracture toughness, glass transition temperature, and thermal expansion coefficient data were established for each sample. Effect of Zr and N content on glass network structure, thermal and mechanical properties was investigated. It was found that the addition of zirconia is effective in preparing Y–Si–Al–O–N oxynitride glasses with lower glass transition temperature and higher hardness.