Intergranular glassy phase free SiC ceramics retains strength at 1500 °C

Heon Jin Choi; Young Wook Kim; Mamoru Mitomo; Toshiyuki Nishimura; Je Hun Lee; Doh Yeon Kim

doi:10.1016/j.scriptamat.2004.02.008

Intergranular glassy phase free SiC ceramics retains strength at 1500 °C

Heon Jin Choi, Young Wook Kim, Mamoru Mitomo, Toshiyuki Nishimura, Je Hun Lee, Doh Yeon Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

We report SiC ceramics sintered with AlN and Sc₂O₃ (or Lu₂O₃) that retain room temperature strength to 1500 °C. The intergranular glassy phase has not been observed in the ceramics due to a designed-sintering additive and, thus, the unsatisfactory effect of glassy phases on the high temperature strength is eliminated.

Original language	English
Pages (from-to)	1203-1207
Number of pages	5
Journal	Scripta Materialia
Volume	50
Issue number	9
DOIs	https://doi.org/10.1016/j.scriptamat.2004.02.008
Publication status	Published - 2004 May

Bibliographical note

Funding Information:
Kim YW acknowledges support of this work by the Korea Science and Engineering Foundation (KOSEF) under Grant No. R01-2001-00255. Choi HJ acknowledges partial support of this work by the National Program for Nanostructured Materials Technology of the Korea Ministry of Science and Technology as one of the 21st Century Frontier Programs.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2004.02.008

Cite this

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title = "Intergranular glassy phase free SiC ceramics retains strength at 1500 °C",

abstract = "We report SiC ceramics sintered with AlN and Sc2O3 (or Lu2O3) that retain room temperature strength to 1500 °C. The intergranular glassy phase has not been observed in the ceramics due to a designed-sintering additive and, thus, the unsatisfactory effect of glassy phases on the high temperature strength is eliminated.",

author = "Choi, {Heon Jin} and Kim, {Young Wook} and Mamoru Mitomo and Toshiyuki Nishimura and Lee, {Je Hun} and Kim, {Doh Yeon}",

note = "Funding Information: Kim YW acknowledges support of this work by the Korea Science and Engineering Foundation (KOSEF) under Grant No. R01-2001-00255. Choi HJ acknowledges partial support of this work by the National Program for Nanostructured Materials Technology of the Korea Ministry of Science and Technology as one of the 21st Century Frontier Programs.",

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T1 - Intergranular glassy phase free SiC ceramics retains strength at 1500 °C

AU - Choi, Heon Jin

AU - Kim, Young Wook

AU - Mitomo, Mamoru

AU - Nishimura, Toshiyuki

AU - Lee, Je Hun

AU - Kim, Doh Yeon

N1 - Funding Information: Kim YW acknowledges support of this work by the Korea Science and Engineering Foundation (KOSEF) under Grant No. R01-2001-00255. Choi HJ acknowledges partial support of this work by the National Program for Nanostructured Materials Technology of the Korea Ministry of Science and Technology as one of the 21st Century Frontier Programs.

PY - 2004/5

Y1 - 2004/5

N2 - We report SiC ceramics sintered with AlN and Sc2O3 (or Lu2O3) that retain room temperature strength to 1500 °C. The intergranular glassy phase has not been observed in the ceramics due to a designed-sintering additive and, thus, the unsatisfactory effect of glassy phases on the high temperature strength is eliminated.

AB - We report SiC ceramics sintered with AlN and Sc2O3 (or Lu2O3) that retain room temperature strength to 1500 °C. The intergranular glassy phase has not been observed in the ceramics due to a designed-sintering additive and, thus, the unsatisfactory effect of glassy phases on the high temperature strength is eliminated.

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JO - Scripta Materialia

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Intergranular glassy phase free SiC ceramics retains strength at 1500 °C

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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