Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Kang Taek | - |
dc.contributor.author | Cha, Seung Ii | - |
dc.contributor.author | Kim, Kyung Tae | - |
dc.contributor.author | Lee, Kyung Ho | - |
dc.contributor.author | Hong, Soon Hyung | - |
dc.date.available | 2017-07-05T08:46:16Z | - |
dc.date.created | 2017-04-10 | - |
dc.date.issued | 2016-02-15 | - |
dc.identifier.issn | 0272-8842 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/2293 | - |
dc.description.abstract | Ultra-fine grained Al2O3 was fabricated by in-situ spark plasma sintering (SPS) process directly from amorphous powders. During in-situ sintering, phase transformation from amorphous to stable α-phase was completed by 1100 °C. High relative density over 99% of in-situ sintered Al2O3 was obtained in the sintering condition of 1400 °C under 65 MPa pressure without holding time. The grain size of in-situ sintered Al2O3 body was much finer (~400 nm) than that of Al2O3 sintered from the crystalline α-Al2O3 powders. For in-situ sintered Al2O3 from amorphous powders, we observed a characteristic microstructural feature of highly elongated grains in the ultra-fine grained matrix due to abnormal grain growth. Moreover, the properties of abnormally grown grains were controllable. Fracture toughness of in-situ sintered Al2O3 with the elongated grains was significantly enhanced due to the self-reinforcing effect via the crack deflection and bridging phenomena. © 2015 Elsevier Ltd and Techna Group S.r.l. | - |
dc.publisher | Elsevier Ltd | - |
dc.title | Sintering behavior, microstructural evolution, and mechanical properties of ultra-fine grained alumina synthesized via in-situ spark plasma sintering | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.ceramint.2015.11.106 | - |
dc.identifier.scopusid | 2-s2.0-84951931010 | - |
dc.identifier.bibliographicCitation | Ceramics International, v.42, no.3, pp.4290 - 4297 | - |
dc.subject.keywordAuthor | Alumina | - |
dc.subject.keywordAuthor | Amorphous | - |
dc.subject.keywordAuthor | Ultra-fine grain size | - |
dc.subject.keywordAuthor | Spark plasma sintering | - |
dc.subject.keywordAuthor | Abnormal grain growth | - |
dc.subject.keywordPlus | Abnormal Grain Growth | - |
dc.subject.keywordPlus | Alumina | - |
dc.subject.keywordPlus | Aluminum | - |
dc.subject.keywordPlus | Amorphous | - |
dc.subject.keywordPlus | Amorphous Materials | - |
dc.subject.keywordPlus | AMORPHOUS PRECURSORS | - |
dc.subject.keywordPlus | BOUNDARIES | - |
dc.subject.keywordPlus | Fracture Toughness | - |
dc.subject.keywordPlus | Grain Growth | - |
dc.subject.keywordPlus | Grain Size and Shape | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | High Relative Densities | - |
dc.subject.keywordPlus | Microstructural Evolution | - |
dc.subject.keywordPlus | Microstructural Features | - |
dc.subject.keywordPlus | OXIDES | - |
dc.subject.keywordPlus | Powders | - |
dc.subject.keywordPlus | Silica | - |
dc.subject.keywordPlus | Sintered Alumina | - |
dc.subject.keywordPlus | Sintering | - |
dc.subject.keywordPlus | Sintering Behaviors | - |
dc.subject.keywordPlus | Sintering Condition | - |
dc.subject.keywordPlus | Situ Spark Plasma Sintering | - |
dc.subject.keywordPlus | SIZE | - |
dc.subject.keywordPlus | Spark Plasma Sintering | - |
dc.subject.keywordPlus | TRANSFORMATION | - |
dc.subject.keywordPlus | TRANSITION | - |
dc.subject.keywordPlus | Ultra-Fine-Grained | - |
dc.subject.keywordPlus | Ultra-Fine Grain Size | - |
dc.citation.endPage | 4297 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 4290 | - |
dc.citation.title | Ceramics International | - |
dc.citation.volume | 42 | - |
There are no files associated with this item.