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High temperature densification forming of alumina powder - Constitutive model and experiments SCIE SCOPUS

Title
High temperature densification forming of alumina powder - Constitutive model and experiments
Authors
Kwon, YSKim, KT
Date Issued
1996-10
Publisher
ASME-AMER SOC MECHANICAL ENG
Abstract
Densification and grain growth of alumina powder compacts were investigated under pressureless sintering, sinter forging, and hot pressing. A set of constitutive equations by Kwon et al. was used to predict densification under diffusional creep. A novel grain growth equation is proposed by generalizing the grain growth model of Wilkinson and Caceres to predict grain growth during densification forming process of ceramic powders render general loading states. Material parameters in the constitutive equations were determined from experimental data under pressureless sintering and sinter forging. Theoretical predictions by ruing the constitutive equations for creep densification and grain growth were compared with experimental data of alumina powder compacts.
Keywords
FINE-GRAINED MATERIALS; ISOSTATIC PRESSING DIAGRAMS; POROUS ALUMINA; COMPACTS; GROWTH; DEFORMATION
URI
https://oasis.postech.ac.kr/handle/2014.oak/21439
DOI
10.1115/1.2805941
ISSN
0094-4289
Article Type
Article
Citation
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, vol. 118, no. 4, page. 448 - 455, 1996-10
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김기태KIM, KI TAE
Dept of Mechanical Enginrg
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