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
中科院分区:
文献类型:
--
作者:
S. Ahmad;T. Ludwig;M. Herrmann;M.M. Mahmoud;W. Lippmann;H.J. Seifert
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.
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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
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
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