کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
767336 1463143 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics
چکیده انگلیسی

A temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics is established. This model is based on the sensitivities of thermo-physical properties to temperature and the evolution of the control mechanisms of strength with the change of temperature of ultra-high temperature ceramics, and incorporates the effects of micro-crack size, damage evolution and temperature on the thermal shock resistance of ultra-high temperature ceramics. The result shows that introducing micro-cracks into ultra-high temperature ceramic material and controlling damage evolution as the nucleation mode through microstructure design method could significantly improve the TSR, particularly in the corresponding initial thermal shock temperature dangerous zone, and keep the high strength of ultra-high temperature ceramics.


► A temperature-damage-dependent thermal shock resistance model for ultra-high temperature ceramics.
► The sensitivities of thermo-physical properties.
► Introducing micro-cracks into ultra-high temperature ceramic material.
► Controlling damage evolution as the nucleation mode through microstructure design method.
► Significantly improve the thermal shock resistance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 82, March 2012, Pages 9–16
نویسندگان
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