Estimation Method of Nanometer Order Density Distribution of Polyethylene with an Energy-filtering TEM

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  • エネルギーフィルタ透過電子顕微鏡によるポリエチレンのナノメータ領域の密度分布推定法の検討
  • エネルギーフィルタ トウカ デンシ ケンビキョウ ニ ヨル ポリエチレン ノ

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Abstract

This paper describes a new method for estimating nanometer order density distribution of polyethylene with an energy-filtering transmission electron microscope. Mass thickness distribution can be measured by a zeroloss electron micrograph and an unfiltered electron micrograph or other combinations of electron micrographs with different energy loss electron. Density distribution can be estimated through mass thickness distribution and geometrical thickness distribution. This paper proposes a method to estimate the geometrical thickness distribution using known lamellar crystalline density of polyethylene and finally estimates nanometer order density distribution. Experimental result shows the estimated density distribution seems to be reasonable in terms of average density.

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