@inproceedings{988a04884d074f1cb5ded6f8981d7487,
title = "Investigating the influence of a powder compact's geometry on its pore structure and optical properties using terahertz spectroscopy",
abstract = "In this study, terahertz time domain spectroscopy (THz-TDS) is used to analyze how the geometry of a compact affects its pore structure (pore shape and orientation). By using flat-faced and biconvex compacts, it was evident from our analysis that pores tend to assume specific shapes and orientations based on the compact's geometry and this was found to significantly affect the extracted optical properties of samples prepared by mixing a material with polyethylene (PE) as diluent and subsequent compaction. However, such sensitivity to the pore properties opens a number of industrial applications such as for quality testing of pharmaceutical tablets. A comparison made between the PE based compacts and a set of pharmaceutical tablets prepared from the same formulation has revealed that flatfaced and biconvex compacts possess different pore geometries and hence different optical properties.",
keywords = "compaction, polymers, porosity, powders, pharmaceuticals",
author = "P. Bawuah and R. Dong and M. Al-Sharabi and D. Markl and Zeitler, {J. A.}",
note = "{\textcopyright} 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.; 44th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2019 ; Conference date: 01-09-2019 Through 06-09-2019",
year = "2019",
month = sep,
day = "21",
doi = "10.1109/IRMMW-THz.2019.8874415",
language = "English",
series = "International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz",
publisher = "IEEE",
booktitle = "IRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves",
}