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Pressure buildup and internal stresses during binder burnout: Numerical analysis
Abstract
The interstitial pressure buildup and the internal stresses on the skeleton of a cylindrical green body during burnout are analyzed numerically. The intrinsic kinetics of pyrolysis is coupled with the Carman‐Kozeny equation or the slip‐flow model of Wakao and Smith to evaluate the pressure distribution. The stress distributions before failure are estimated from elasticity theory. The stresses are tensile, and their maxima are located at the center of the cylinder. The tangential stress is larger than the radial stress. The effects of green body size, specific surface area, and pressurized atmosphere are discussed. The approximate solution is accurate for small green bodies. The pressurized atmosphere reduces the interstitial pressure and the internal stresses effectively.
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References 22 · Cited by 75
Research works printed but not linked: 29
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Metadata
- Authors
- Tsai, D.
- Affiliations
- National Taiwan University of Science and Technology (TW)
- Corresponding author
- Tsai, Dah‐Shyang
- ORCID
- Tsai, Dah‐Shyang
- Venue
- AIChE Journal
- Publisher
- Wiley
- Published
- 1991-04
- Volume
- 37
- Issue
- 4
- Pages
- 547-554
- ISSN
- 0001-1541 (ISSN-L)
- 1547-5905
- OpenAlex
- W2145477142
- Cited by
- 75
- References
- 22
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 2 · 2023: 1 · 2022: 1 · 2021: 1 · 2020: 4 · 2019: 2 · 2018: 2 · 2016: 2 · 2015: 1 · 2014: 1 · 2013: 3 · 2012: 1
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- AIChE Journal (publishedVersion)
- Topics
- Physical Sciences › Engineering › Computational Mechanics › Heat and Mass Transfer in Porous Media
- Physical Sciences › Materials Science › Ceramics and Composites › Advanced ceramic materials synthesis
- Physical Sciences › Materials Science › Materials Chemistry › Graphite, nuclear technology, radiation studies
- Keywords
- binder burnout, internal stress distribution, pyrolysis kinetics, Kozeny-Carman equation, elasticity theory, specific surface area, ceramic forming
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