Open-Nano Pores in Natural Minerals Studied by Positron Lifetime Spectroscopy

K. Yoshizawa; K. Sato; Hideoki Murakami; N. Shikazono; K. Fujimoto; M. Nakata

doi:10.4028/www.scientific.net/MSF.607.189

Paper Titles

Free Volumes in Polymer Nanocomposites
p.177

n-Nonadecane Embedded in Mesopores
p.180

Investigation of Interfacial Interaction and Microstructure for Epoxy/CNTs Nanocomposites by PALS
p.183

Positron Study of Carbon Black Parameters: Structure and Surface Area
p.186

Open-Nano Pores in Natural Minerals Studied by Positron Lifetime Spectroscopy
p.189

Study of the Defect Formation of Helium in Nanocrystalline Titanium Films
p.192

Tungsten Oxide Nanostructures Growth in HFCVD System by Slow Positron Beam
p.195

Positron Annihilation in Carbon Nanotubes
p.198

Formation of Ordered Pores Determined by Positronium Time of Flight Spectroscopy
p.201

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Open-Nano Pores in Natural Minerals Studied by Positron Lifetime Spectroscopy

Abstract:

Positron lifetime spectroscopy was conducted for natural minerals to investigate open-nano pores. Positronium (Ps) formation occurs with ortho-positronium (o-Ps) intensities ranging from a few % to 20 % and size distributions of nano pores are evaluated from o-Ps lifetimes. The results will be discussed with respect to formation processes of nano pores influenced by earth's environment.