کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1584539 | 1514901 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure and mechanical properties of Al2O3 particle reinforced LiTaO3 piezoelectric ceramic matrix composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Densified Al2O3/LiTaO3 (ALT) ceramic matrix composites (CMCs) were fabricated by hot-press sintering in nitrogen atmosphere. Microstructure and mechanical properties of the composites were investigated systematically. High relative density (99.5%) can be obtained when the ALT composites hot-press sintered at 1300 °C with a pressure of 25 MPa. TEM investigation shows that the LiTaO3 particles remain ferroelectric and 90° domains are present in LiTaO3 grains. The Al2O3 particles distribute homogeneously in the LiTaO3 matrix. A high strength of 195.6 MPa and toughness of 2.8 MPa·m1/2 were achieved in the sintered ALT composites. The strengthening and toughening mechanisms of the ALT composites were discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 448, Issues 1â2, 15 March 2007, Pages 330-334
Journal: Materials Science and Engineering: A - Volume 448, Issues 1â2, 15 March 2007, Pages 330-334
نویسندگان
Youfeng Zhang, Yu Zhou, Dechang Jia, Hongyu Li, Qingchang Meng,