Development of Zero Thermal Expansion Ceramics using Antiperovskite Manganese Nitrides
| Project/Area Number |
19360304
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Nagoya University |
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Principal Investigator |
TAKENAKA Koshi Nagoya University, 大学院・工学研究科, 准教授 (60283454)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000)
Fiscal Year 2009: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2008: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2007: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
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| Keywords | ゼロ膨張材料 / 低膨張材料 / 熱膨張制御 / セラミック / 逆ペロフスカイト / マンガン窒化物 / 負熱膨張 / 単一物質 / 機械特性 / ヤング率 / 負膨張 / インバー |
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| Research Abstract |
Pure-form zero thermal expansion (ZTE) ceramics have been developed using antiperovskite manganese nitrides Mn_3XN, negative thermal expansion of which can be tunable. Such a ZTE material consisting of one material without thermal expansion has advantages compared to ZTE composites currently in use because the grain boundaries are stable against temperature variation and the fabrication process is simple. The low-cost ZTE was achieved without expensive Ge by optimizing chemical compositions. These manganese nitrides exhibit high stiffness ; Young's modulus exceeds 300GPa, much larger than that of typical thermal-expansion compensators. The present results demonstrate high potentiality of this nitride as a practical ZTE material.
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Report
(4 results)
Research Products
(58 results)
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[Presentation] Mn3CuNの磁歪2008
Author(s)
浅野和子・小山佳一・竹中康司
Organizer
日本物理学会第63回年次大会
Place of Presentation
近畿大学(東大阪市)
Year and Date
2008-03-25
Related Report
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