Quantitative analysis of packed and compacted granular systems by x-ray microtomography

Xiaowei Fu; Georgina E. Milroy; Meenakshi Dutt; A. Craig Bentham; Bruno C. Hancock; James A. Elliott

doi:10.1117/12.595114

29 April 2005 Quantitative analysis of packed and compacted granular systems by x-ray microtomography

Xiaowei Fu, Georgina E. Milroy, Meenakshi Dutt, A. Craig Bentham, Bruno C. Hancock, James A. Elliott

Proceedings Volume 5747, Medical Imaging 2005: Image Processing; (2005) https://doi.org/10.1117/12.595114
Event: Medical Imaging, 2005, San Diego, California, United States

Abstract

The packing and compaction of powders are general processes in pharmaceutical, food, ceramic and powder metallurgy industries. Understanding how particles pack in a confined space and how powders behave during compaction is crucial for producing high quality products. This paper outlines a new technique, based on modern desktop X-ray tomography and image processing, to quantitatively investigate the packing of particles in the process of powder compaction and provide great insights on how powder densify during powder compaction, which relate in terms of materials properties and processing conditions to tablet manufacture by compaction. A variety of powder systems were considered, which include glass, sugar, NaCl, with a typical particle size of 200-300 μm and binary mixtures of NaCl-Glass Spheres. The results are new and have been validated by SEM observation and numerical simulations using discrete element methods (DEM). The research demonstrates that XMT technique has the potential in further investigating of pharmaceutical processing and even verifying other physical models on complex packing.

Citation Download Citation

Xiaowei Fu, Georgina E. Milroy, Meenakshi Dutt, A. Craig Bentham, Bruno C. Hancock, and James A. Elliott "Quantitative analysis of packed and compacted granular systems by x-ray microtomography", Proc. SPIE 5747, Medical Imaging 2005: Image Processing, (29 April 2005); https://doi.org/10.1117/12.595114

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available