常圧焼結窒化珪素の高温引張試験

Material type: 文書・図像類

Author: 松末, 勝利ほか

Publisher: 航空宇宙技術研究所

Publication date: 1983-03

Material Format: Digital

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Note (General)：: 常圧焼結窒化珪素の高温強度特性を調べるために,室温から1600℃までの引張試験を行った。供試材料として,焼結助剤が異なる三種類の窒化珪素を用いた。高温試験の結果,アルミナ・マグネシア(Al2O3・MgO)及びマグネシア・セリア(MgO・CeO2)を助剤とする二種類の焼結体の引張強度は800℃を超える...

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Material Type: 文書・図像類
Title: 常圧焼結窒化珪素の高温引張試験
Author/Editor: 松末, 勝利
藤沢, 良昭
高原, 北雄
MATSUSUE, Katsutoshi
FUJISAWA, Yoshiaki
TAKAHARA, Kitao
Author Heading: 松末, 勝利
藤沢, 良昭
高原, 北雄
MATSUSUE, Katsutoshi
FUJISAWA, Yoshiaki
TAKAHARA, Kitao
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1983-03
Publication Date (W3CDTF): 1983-03
Alternative Title: Tensile Strength of Pressureless-Sintered Silicon Nitride at Elevated Temperature
Periodical title: 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-753
No. or year of volume/issue: 753
Volume: 753
Pages: 15-
ISSN (Periodical Title): ISSN : 0389-4010
Text Language Code: jpn
Target Audience: 一般
Note (General): 常圧焼結窒化珪素の高温強度特性を調べるために,室温から1600℃までの引張試験を行った。供試材料として,焼結助剤が異なる三種類の窒化珪素を用いた。高温試験の結果,アルミナ・マグネシア(Al2O3・MgO)及びマグネシア・セリア(MgO・CeO2)を助剤とする二種類の焼結体の引張強度は800℃を超えると低下し,イツトリア・アルミナ(Y2O3・Al2O3)を助剤とする焼結体では1000℃以上で低下した。そして,三種類の材料とも1300℃の温度では,室温強度の約10％に低下することを示した。そのほか,現用の耐熱合金との比較を行い,材料開発の現況を考察した。
Uniaxial tensile strength tests of pressureless-sintered silicon nitride were carried out in air at temperatures ranging from room temperature up to 1600C. Three kinds of silicon nitride were tested; that containing Y2O3・Al203, Al2O3・MgO or MgO・CeO2 additives. These additives were used for promoting the sintering-process. The test results show that the composition of the additive used influences the strength characteristics of the silicon nitride. The tensile strength rapidly decreased at temperatures above 800C for the materials containing MgO as the additive and above 1000C for the material with Y2O3. When the temperature increased to as high as 1300C, the strength decreased to about 10 percent of the room temperature strength in each case. Observations of the fracture origin and of the crack propagation on the fracture surface were made and discussed.
資料番号: NALTR0753000
レポート番号: NAL TR-753
Access Restrictions: 限定公開
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