SiC繊維強化/純アルミニウム複合材料の引張材料特性と高温引張強度

• Material Type: 規格・テクニカルリポート類
• Title: SiC繊維強化/純アルミニウム複合材料の引張材料特性と高温引張強度
• Author/Editor: 祖父江, 靖; Zhou, Fenghua; 小河, 昭紀; Sofue, Yasushi; Ogawa, Akinori
• Author Heading: 祖父江, 靖; Zhou, Fenghua; 小河, 昭紀; Sofue, Yasushi; Ogawa, Akinori
• Publication, Distribution, etc.: 航空宇宙技術研究所
• Publication Date: 2001-01
• Publication Date (W3CDTF): 2001-01
• Alternative Title: Tensile material properties and high temperature tensile strength of SiC fiber reinforced pure aluminum composites
• Periodical title: 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory
• No. or year of volume/issue: 1419
• Volume: 1419
• Pages: 1-15
• ISSN (Periodical Title): ISSN : 0389-4010
• Text Language Code: jpn
• Subject Heading: SiC繊維強化/純アルミニウム複合材料; 引張材料特性; 高温引張強度; 横強さ; 金属系複合材料; 比剛性; 送電システム; 低酸素炭化けい素繊維; 高温用ダンベル形試験片; 繊維配向; SiC fiber reinforced pure aluminum composite; tensile material property; high temperature tensile strength; transverse strength; metal matrix composite; specific stiffness; power transmission system; low oxygen silicon carbide fiber; high temperature dumbbell shaped specimen; fiber orientation
• Target Audience: 一般
• Note (General): 出版タイプ： NA; SiC/Al複合材料の室温及び高温の引張試験を行い、引張材料特性及び高温強度を調べた。室温試験では、繊維配向が異なる断面積60平方ミリメートルのUD(0)及びUD(90)短冊形試験を用いて、材料特性の違いを調べた。UD(0)短冊形試験変の引張強さは1,070MPaを得た。応力-ひずみ線図によると約140MPa付近で折れ曲がりのある直線的な挙動を示した。UD(90)短冊形試験片の場合、引張強さは78MPaを得た。この値は、前者の7.3%であり、著しく低い。応力-ひずみ線図によると40MPaまでは直線的な挙動を示すが、これを越えると応力の増加とともにひずみの増加率が高くなり、指数級数的な挙動を示した。高温試験では、最小断面6平方ミリメートルのダンベル形試験片を用い、試験片中央部の試験評標定部を局部加熱できる円盤状薄形電気炉を用いて515度Cまでの高温引張強度を調べた。202度Cから515度Cまでの7点の高温引張強度値を最小二乗法で近似した結果、一次近似直線に近似し、温度上昇に伴い直線的に低下する傾向を示した。なお、室温(20度C)の近似値は1,103MPa、500度Cの近似値は686MPaとなった。又、これらの試験結果と次世代複合材料研究開発ブロジェクトで開発されたNicalon繊維強化SiC/Al複合材料の室温及び高温試験データと比較し、その違いを調べた。; With their excellent high-temperature properties and high specific stiffness and strength, Metal Matrix Composites (MMC) find broad applications not only in the aerospace industry, but also in other engineering fields. In this paper, the tensile properties of SiC fiber reinforced pure aluminum, which has potential applications in power transmission systems, were experimentally evaluated in the temperature range from RT (Room Temperature) to 515 C. Hi-Nicalon (sup TM) low-oxygen silicon carbide fibers recently developed by Nippon Carbon were used to unidirectionally reinforce 99.9 percent pure aluminum (Al090). These specimens had a rectangular or dumbbell shape. The rectangular specimens were used for room temperature testing, in which SiC fibers were aligned in 0 deg or 90 deg directions to the tensile loading. The dumbbell-shaped specimens, reinforced in the 0 deg direction, were used for high-temperature testing. Prior to the high-temperature experiments, a 3D FEM (Field Emission Microscope) analysis was performed to ensure that no unwanted stress concentration existed in the dumbbell specimens. The mechanical properties of the material, i.e. Young's modulus, Poisson's ratio, strength and elongation, were measured and summarized in figures or tables. These data were compared with published data for Nicalon fiber reinforced aluminum, and it was found that the present Hi-Nicalon SiC/Al material is better reinforced in the fiber direction. On the other hand, the transverse strength of this material is lower due to matrix (99.9 percent pure Al) yielding. In the experimental temperature range, strength of the material decreases linearly with the increase in temperature.; 資料番号: AA0028664000; レポート番号: NAL TR-1419
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ