X-ray and neutron small angle scattering with Si-C-N ceramics using isotopic substitution

被引：32

作者：

Durr, J ^{[1
]}

Schempp, S ^{[1
]}

Lamparter, P ^{[1
]}

Bill, J ^{[1
]}

Steeb, S ^{[1
]}

Aldinger, F ^{[1
]}

机构：

[1] Max Planck Inst Met Forsch, Stuttgart, Germany

来源：

SOLID STATE IONICS | 1997年 / 101卷

关键词：

amorphous ceramics; small angle neutron scattering (SANS); small angle X-ray scattering (SAXS);

D O I：

10.1016/S0167-2738(97)00166-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Using small angle neutron and X-ray scattering measurements, the temperature dependence of the medium range structure Of amorphous Si24.4C42.4N33.2 ceramics was investigated. Contrast variation by the isotopic substitution method (N-nat and N-15) showed that the observed SAS signal is caused by two separate phases of amorphous Si3N4 and amorphous carbon within the material. The measured invariant remains constant over the whole observed temperature range, whereas the correlation volume increases with increasing temperature.

引用

页码：1041 / 1047

页数：7