Journal
MATERIALS TRANSACTIONS
Volume 57, Issue 6, Pages 1010-1013Publisher
JAPAN INST METALS & MATERIALS
DOI: 10.2320/matertrans.M2016078
Keywords
synchrotron radiation; X-ray diffraction; long-period stacking ordered structure; magnesium-zinc-rare earth; thermal expansion coefficient
Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [23109001, 23109002, 23109003, 24109508]
- Grants-in-Aid for Scientific Research [16H01701, 24109508] Funding Source: KAKEN
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We measured the thermal expansion coefficients of an 18R-synchronized long-period stacking ordered magnesium alloy (Mg85Zn6Y9) and an a-phase pure magnesium (alpha-Mg). This was achieved by using a Gandolfi camera, which was attached on a high precision diffractometer at SPring-8 BL40XU beamline. By using this system, fine powder diffraction data could be obtained even from a highly oriented Mg85Zn6Y9 polycrystal at different temperatures between 95 and 440 K. The thermal expansion coefficient along a- and c-axes were determined from the refined cell parameters. The thermal expansion coefficient of the Mg85Zn6Y9 are smaller than those of the alpha-Mg.
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