A METHOD FOR THE CHARACTERIZATION OF SURFACE-MODIFIED ASBESTOS FIBERS BY ELECTRON ENERGY-LOSS SPECTROSCOPY AND ELECTRON SPECTROSCOPIC IMAGING

被引：5

作者：

XHOFFER, C ^{[1
]}

BERGHMANS, P ^{[1
]}

MUIR, I ^{[1
]}

JACOB, W ^{[1
]}

VANGRIEKEN, R ^{[1
]}

ADAMS, F ^{[1
]}

机构：

[1] UNIV INSTELLING ANTWERP,DEPT MED,B-2610 WILRIJK,BELGIUM

来源：

JOURNAL OF MICROSCOPY-OXFORD | 1991年 / 162卷

关键词：

ELECTRON ENERGY-LOSS SPECTROSCOPY; ELECTRON SPECTROSCOPIC IMAGING (ESI); IMAGE PROCESSING; CONDUCTING CARBON FILM; ORGANOSILANE-TREATED CHRYSOTILE ASBESTOS;

D O I：

10.1111/j.1365-2818.1991.tb03128.x

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

A method for the characterization of surface-treated asbestos fibres with electron microscopy is presented. Electron spectroscopic imaging (ESI) of organosilane-treated chrysotile asbestos fibres has been carried out. Initially, the region below the carbon edge was inspected in ESI mode for its effectiveness as a background correction. Elemental mapping was performed on standard untreated fibres to take into account non-characteristic signals from extrapolation errors and camera artefacts. The highest resulting pixel value that results from non-characteristic signals was used as a threshold for further background correction in the net images. Samples for electron energy-loss spectroscopy were prepared in two different ways, either by gluing on grids, or by using perforated carbon foils. The results show that the use of a conducting carbon film is necessary for the analysis of such electrically insulating asbestos fibres. Focusing of the electron beam on the individual fibres results in a thermal effect promoting the evaporation of the organosilane reaction products.

引用

页码：179 / 184

页数：6