کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1580434 | 1514835 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of ceramic preform geometry on load partitioning in Al2O3-Al composites with three-dimensional periodic architecture
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Interpenetrating Al2O3/Al composites were created by liquid-metal infiltration of 3D periodic ceramic preforms with face-centered-tetragonal symmetry produced by direct-write assembly. Volume-averaged lattice strains in the ceramic phase of the composite were measured by synchrotron X-ray diffraction for various levels of uniaxial compression stresses. Load transfer is found to occur from the metal phase to the ceramic phase, and the magnitude of the effect is in general agreement with simple rule-of-mixtures models. Spatially resolved diffraction measurements show variations in load transfer at two different positions within the composite for the elastic- and damage-deformation regimes, the latter being observed using phase-enhanced synchrotron imaging. The mechanical behavior of these interpenetrating Al2O3/Al composites with face-centered-tetragonal symmetry are compared with previous interpenetrating Al2O3/Al composites with simple-tetragonal symmetry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 526, Issues 1â2, 25 November 2009, Pages 190-196
Journal: Materials Science and Engineering: A - Volume 526, Issues 1â2, 25 November 2009, Pages 190-196
نویسندگان
M.L. Young, R. Rao, J.D. Almer, D.R. Haeffner, J.A. Lewis, D.C. Dunand,