Title :
Estimation method of nanometer order density distribution of polyethylene with an energy filtering TEM
Author :
Okamoto, Tatsuki ; Kanegami, Masaki ; Hozumi, Naohiro
Author_Institution :
Central Res. Inst. of Electr. Power Ind., Yokosuka, Japan
Abstract :
One-dimensional mass-thickness distribution of polyethylene specimen was estimated with an energy-filtering TEM for unstained specimen with suitable calibration points using lamella information as calibration data. Possibility to estimate the free volume ratio distribution and therefore the possibility of free volume distribution itself becomes realistic. Free volume ratio is the average free volume amount along the electron beam line across TEM specimen and it is not free volume distribution itself. We need proper definition of "Free Volume Distribution" for further development
Keywords :
calibration; density; electron energy loss spectra; polyethylene insulation; transmission electron microscopy; EELS; calibration; energy filtering TEM; free volume distribution; nanometer order density distribution; one-dimensional mass-thickness distribution; polyethylene; polymeric insulation; Degradation; Density measurement; Dielectrics and electrical insulation; Electric breakdown; Electron beams; Filtering theory; Polyethylene; Polymers; Spatial resolution; Temperature distribution;
Conference_Titel :
Electrical Insulating Materials, 1998. Proceedings of 1998 International Symposium on
Conference_Location :
Toyohashi
Print_ISBN :
4-88686-050-8
DOI :
10.1109/ISEIM.1998.741803
