Laser induced vaporization mass spectrometric studies on Si3N4

被引:10
作者
Joseph, M [1 ]
Sivakumar, N [1 ]
Manoravi, P [1 ]
机构
[1] Indira Gandhi Ctr Atom Res, Mat Chem Div, Kalpakkam 603102, Tamil Nadu, India
关键词
laser vaporization; time reserved mass spectrometry; Si3N4;
D O I
10.1016/S1387-3806(98)14016-2
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
An Si3N4 sample was irradiated with an Nd-YAG laser. The species present in the plume were detected by a quadrupole mass spectrometer (QMS). The species observed were Si, SiN, Si-2, Si2N, Si-3, Si3N, Si-4, Si3N4, Si-6, Si-7, and N. Weak signals were observed at m/e = 126 and 280. The analysis of the velocity of the different species indicates the existence of thermal equilibrium in the vaporization process. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:237 / 244
页数:8
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