Joining of Ultra High Temperature Ceramics using Reactive Metal Melts
| Project/Area Number |
24686085
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Metal making engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
SAITO Noritaka 九州大学, 工学(系)研究科(研究院), 准教授 (80432855)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥26,780,000 (Direct Cost: ¥20,600,000、Indirect Cost: ¥6,180,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2013: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2012: ¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
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| Keywords | 超高温セラミックス / 接合 / 金属融体 / 濡れ性 / 界面反応 / 曲げ強度 / UHTC / 溶融金属 |
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| Outline of Final Research Achievements |
Joint-region microstructural characterization revealed well-bonded interfaces with microstructures strongly dependent on the interlayer. It was found that the Ti interlayer exhibited more intensive interfacial reaction with ZrB2 composite than the Zr interlayer, which is mainly attributed to the formation of Ti-Zr-Si ternary liquid phase at the bonding temperature. Additionally, the bending strength at room temperature reached 477.7±88 MPa for the Ti interlayer and 439±70 MPa for the Zr interlayer, respectively. Then at high temperature (1000 °C, under air), the bending strength exhibited 495.3±45 MPa for the Ti interlayer and 190.7±84 MPa for the Zr interlayer, respectively. These results indicated that the strength of the joints were comparable at room temperature, however at elevated temperature, the joint with Zr interlayer revealed significantly reduced strength, which is due to the residual metallic Zr at the interface and its oxidization during the bending test at 1000 °C.
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Report
(4 results)
Research Products
(18 results)
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[Presentation] 金属融体を用いた超高温セラミックスの接合2014
Author(s)
齊藤敬高，中島邦彦, Laura ESPOSITO, Laura SILVESTRONI, Diletta SCITI, Stefano GUICCIARDI, and Andreas M. GLAESER
Organizer
日本鉄鋼協会高温プロセス部会高温物性値フォーラム 日本熱物性学会研究分科会 平成26年度第1回研究会
Place of Presentation
司ロイヤルホテル
Year and Date
2014-06-20 – 2014-06-21
Related Report
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[Presentation] Joining of UHTC Diborides using Metallic Interlayers2014
Author(s)
Noritaka SAITO, Kunihiko NAKASHIMA, Laura ESPOSITO, Laura SILVESTRONI, Diletta SCITI, Stefano GUICCIARDI, and Andreas M. GLAESER
Organizer
CIMTEC2014, 13th International Ceramics Congress
Place of Presentation
Palazzo dei Congressi, Montecatini Terme
Year and Date
2014-06-09 – 2014-06-13
Related Report
Invited
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[Presentation] Transient-liquid-phase bonding of HfC-based ceramics2013
Author(s)
Laura ESPOSITO, Diletta SCITI, Laura SILVESTRONI, Cesare MELANDRI, Stefano GUICCIARDI, Andreas M. GLAESER, Noritaka SAITO, Kunihiko NAKASHIMA
Organizer
13th International Conference and Exhibition of the European Ceramic Society
Place of Presentation
Limoges, France
Related Report
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