کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5440708 1398235 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fracture behavior of low carbon MgO-C refractories using the wedge splitting test
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Fracture behavior of low carbon MgO-C refractories using the wedge splitting test
چکیده انگلیسی
The fracture behavior of low carbon MgO-C refractories containing various carbon sources were investigated by means of the wedge splitting test and microscopic fractographic analysis to evaluate quantitatively their thermal shock resistance in the present work. The results showed that the addition of various nanocarbons in MgO-C specimens can lead to more tortuous crack propagation path during the wedge splitting test and much better thermal shock resistance compared to the specimen with flaky graphite as carbon source; particularly, the specimen containing carbon nanotubes had the most outstanding thermal shock resistance. Also, it was suggested from the correlation analysis that the increase of the specific fracture energy and interface crack propagation as well as the decrease of the modulus of elasticity, coefficient of thermal expansion and transgranular crack propagation can contribute to an improvement of thermal shock resistance of MgO-C refractories.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 37, Issue 4, April 2017, Pages 1789-1797
نویسندگان
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