Effect of purity on X-ray elastic constant of sintered alumina.
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- SUZUKI Kenji
- Faculty of Education, Niigata University
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- TANAKA Keisuke
- Faculty of Engineering, Kyoto University
Bibliographic Information
- Other Title
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- 焼結アルミナのX線的弾性定数に及ぼす純度の影響
- ショウケツ アルミナ ノ Xセンテキ ダンセイ テイスウ ニ オヨボス ジュン
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Abstract
The X-ray elastic constant of sintered alumina with powder purities of 99%, 96% and 92% was determined for two diffraction planes, (2. 1. 10) and (1 4 6), by using Fe-Kα and Cu-Kα radiations. The effects of purity and diffraction plane on the X-ray elastic constant were studied.<br>The results obtained were summarized as follows:<br>(1) The diffraction from the (2. 1. 10) plane yielded higher accuracy in the X-ray stress measurement of sintered alumina than that from the (1 4 6) plane, because of its high intensity, isolation of the diffraction profile, and low magnitude of the stress constant.<br>(2) The X-ray value of the elastic constant, E/(1+ν)(E=Young's modulus, ν=Poisson's ratio), as well as the mechanical value, became smaller with decreasing purity or bulk density. The ratio of the X-ray elastic constant to the mechanical value did not vary with bulk density for the both diffraction planes.<br>(3) A simple method to estimate the X-ray elastic constant of sintered alumina with arbitrary bulk density was proposed on the basis of the Reuss-model analysis of alumina polycrystals.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 37 (417), 586-591, 1988
The Society of Materials Science, Japan
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Details 詳細情報について
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- CRID
- 1390282680394202624
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- NII Article ID
- 110002298732
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 3177159
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed