Densification and mechanical properties of multiphase ceramic composites fabricated by a polymer complexation route
- Authors
- Lee, SJ; Lee, HK; Cho, KS
- Issue Date
- 2005
- Publisher
- KOREAN ASSOC CRYSTAL GROWTH, INC
- Keywords
- multiphase ceramic composites; sintering; flexural strength; polyethylene glycol; porous powders; polymer complexation route
- Citation
- JOURNAL OF CERAMIC PROCESSING RESEARCH, v.6, no.1, pp.85 - 89
- Journal Title
- JOURNAL OF CERAMIC PROCESSING RESEARCH
- Volume
- 6
- Number
- 1
- Start Page
- 85
- End Page
- 89
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/3401
- ISSN
- 1229-9162
- Abstract
- Multi-component ceramic composites consisting of two, three and four phases, based on duplex microstructures of zirconia and alumina, were fabricated by a polymer complexation route employing polyethylene glycol (PEG) as a polymeric carrier. The polymer complexation route showed an unique exothermic reaction involving expansion of the powder structure and it provided highly sinterable powder by a simple ball milling process. In this study, the microstructures and flexural strengths of the multi-component (Al2O3-ZrO2-CeO2-SrO) ceramic composites were examined on the processing variations of the forming and sintering for close to nano-structures. A composite having four phases showed grain growth retardation and the microstructure and final phases were largely dependant on the sintering conditions. Needle-like grains from the addition of SrO improved the flexural strength of the multiphase composites.
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Collections - Department of Materials Science and Engineering > 1. Journal Articles
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