کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7898524 | 1510137 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spark plasma sintering of titanium nitride in nitrogen: Does it affect the sinterability and the mechanical properties?
ترجمه فارسی عنوان
تجمع نیترید تیتانیوم در نیتروژن: آیا بر روی خوردگی و خواص مکانیکی تاثیر می گذارد؟
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Titanium nitride ceramics have an intrinsic interest due to its optical and structural applications. However, the conditions for sintering of dense pieces are not still clarified. This research work is focused on the spark plasma sintering (SPS) of near-fully dense fine-grained TiN. The main goal is giving a response to a longstanding debate: can the external atmosphere favor sintering? Different sintering atmospheres, either vacuum or a nitrogen flow, have been used during SPS heating to this purpose. X ray diffraction analysis has showed the presence of TiN as the main phase with traces of Ti4O7 in optimal SPS conditions (1600â¯Â°C, one minute dwell time). Our results show that the use of a nitrogen flow while heating can improve sinterability very slightly, but mechanical properties are essentially unaltered within the experimental uncertainty. The hardness reaches values as high as 20GPa whereas fracture toughness can be evaluated around 4â¯MPam1/2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 4, April 2018, Pages 1190-1196
Journal: Journal of the European Ceramic Society - Volume 38, Issue 4, April 2018, Pages 1190-1196
نویسندگان
Bibi Malmal Moshtaghioun, Diego Gómez-GarcÃa, Arturo DomÃnguez-RodrÃguez,