کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1580225 | 1514844 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Damage tolerance and R-curve behavior of ZrB2–ZrO2 composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Damage tolerance and R-curve behavior of ZrB2–ZrO2 composites Damage tolerance and R-curve behavior of ZrB2–ZrO2 composites](/preview/png/1580225.png)
چکیده انگلیسی
Four ZrB2 composites were prepared by hot-pressing with different content of ZrO2, i.e., 0, 10, 20 and 30 vol%. By means of the indentation-strength method, damage tolerance and resistance-curve (R-curve) behavior were investigated for ZrB2–ZrO2 composites. Under the indentation load of 196 N, retained strength of monolithic ZrB2 was only ∼89 MPa, however, that value could reach ∼281 MPa for ZrB2–30 vol%ZrO2 composite. Obvious R-curve behavior was further found in ZrB2–ZrO2 composites compared with monolithic ZrB2. Regarding ZrB2–30 vol%ZrO2, the steady-state toughness was ∼6.5 MPa m1/2. Such improved toughening effect was attributed to the crack bridging and transformation toughening of ZrO2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 516, Issues 1–2, 15 August 2009, Pages 297–301
Journal: Materials Science and Engineering: A - Volume 516, Issues 1–2, 15 August 2009, Pages 297–301
نویسندگان
Tao Zhu, Weijie Li, Xinghong Zhang, Ping Hu, Changqing Hong, Ling Weng,