Crystallisation studies of Si3N4–Al2O3–SiO2–Y2O3 glass–ceramics under different heat-treatment conditions

Crystallisation studies of Si3N4–Al2O3–SiO2–Y2O3 glass–ceramics under different heat-treatment conditions
复制标题

Si3N4âAl2O3âSiO2âY2O3微晶玻璃不同热处理条件下的晶化研究

DOI:
10.1016/j.jeurceramsoc.2015.02.018
复制
发表时间:
2015
影响因子:
5.7
通讯作者:
H.J. Seifert
H.J. Seifert
中科院分区:
材料科学1区
文献类型:
--
作者:
S. Ahmad;T. Ludwig;M. Herrmann;M.M. Mahmoud;W. Lippmann;H.J. Seifert

文献摘要

参考文献

相似文献

研究了不同热处理温度和热处理气体对si3n4 - al2o3 - sio2 - y2o3玻璃结晶的影响。同时进行热分析和高温量热法测定玻璃化转变温度、结晶温度和焓。用原位高温x射线粉末衍射测定了这些玻璃的结晶行为,并用x射线衍射研究了相的体积分数。采用扫描电镜、能量色散分析和电子探针相结合的方法对样品进行了定性和定量相分析。结果表明,气体类型、时效温度和氮含量对si3n4 - al2o3 - sio2 - y2o3微晶玻璃的微观结构和玻璃化转变温度有较大影响,并产生了不同的二硅酸钇改性。此外,还观察到d相(YSi2AlO4N2)的形成与样品中初始氮含量有关。
The effects of different heat-treatment temperatures and gases on the crystallisation of Si3N4–Al2O3–SiO2–Y2O3glasses were investigated. Simultaneous thermal analyses and high temperature calorimetry were carried out to determine the glass transition temperatures, the crystallisation temperatures and enthalpies. In situ high temperature X-ray powder diffraction was used to determine the crystallisation behaviour of these glasses while X-ray diffraction studies were carried out to find the volume fraction of phases. The qualitative and quantitative phase analyses were conducted using scanning electron microscopy combined with energy dispersive analysis and electron microprobe. It was found that the gas type, the ageing temperature and the nitrogen content were greatly affecting the microstructure and the glass transition temperatures in Si3N4–Al2O3–SiO2–Y2O3glass–ceramics and produced different modifications of yttrium disilicate. Moreover, it was observed that the formation of D-phase (YSi2AlO4N2) depends on the initial nitrogen contents in the samples.
DOI: 10.1016/j.jeurceramsoc.2014.05.025
发表时间: 2014-12
影响因子: 5.7
作者:
S. Ahmad;T. Ludwig;M. Herrmann;M. Mahmoud;W. Lippmann;H. Seifert
通讯作者: S. Ahmad;T. Ludwig;M. Herrmann;M. Mahmoud;W. Lippmann;H. Seifert
SiAlON 玻璃:氮对结构和性能的影响
DOI: --
发表时间: 2008
期刊:
影响因子: --
作者:
M. Pomeroy;S. Hampshire
通讯作者: S. Hampshire
DOI: --
发表时间: 1993
期刊:
影响因子: --
作者:
M. Lewis
通讯作者: M. Lewis
氮氧化物玻璃的制备及性能
DOI: --
发表时间: 1983
期刊:
影响因子: --
作者:
R. Drew;S. Hampshire;K. Jack
通讯作者: K. Jack
DOI: --
发表时间: 1993
期刊:
影响因子: --
作者:
A. K. Jha;Sejin Yoon
通讯作者: Sejin Yoon