CEMS study of stainless steel films deposited by pulsed laser ablation of AISI316
CEMS study of stainless steel films deposited by pulsed laser ablation of AISI316
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DOI：
10.1007/s10582-005-0086-y
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发表时间：
2005-07-01
期刊：
影响因子：
--
通讯作者：
Mashlan, M
中科院分区：
文献类型：
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作者：
Nomura, K;Yamada, Y;Mashlan, M
采用脉冲激光烧蚀奥氏体不锈钢（AIS1316），在SiO2/Si晶片上制备了不锈钢薄膜，并用He气体比例计数器进行了转换电子穆斯堡尔光谱（CEMS）表征。沉积薄膜由磁性相组成。当沉积膜在空气中以不同的温度加热时，磁相的超细场增加。赤铁矿在表面生成，随着加热温度的升高，磁性取向由平行向面内随机变化。金属铁和磁铁矿在400℃的干燥氩+ 5%H-2气氛中生成。当膜在600℃的氩气+5%H-2中加热时，表面生成磁铁矿，膜内生成奥氏体相。
Thin stainless steel films deposited on SiO2/Si wafer were prepared by a pulsed laser ablation of austenite stainless steel (AIS1316), and characterized by conversion electron Mossbauer spectrometry (CEMS) using a He gas proportional counter. As-deposited films were composed of a magnetic phase. When deposited films were heated in air at various temperatures, the hyperfine field of the magnetic phase increased. Hematite was produced on the surface, and the magnetic orientation changed from parallel to in-plane at random with the increase of heating temperatures. The metallic iron and magnetite were produced at 400 degrees C in dry Ar + 5%H-2 atmosphere. When the film was heated in wet Ar+5%H-2 atmosphere at 600 degrees C, maghemite was produced on the surface, and austenite phase was produced in the inner film.