کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1465527 989697 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructural study of titanium carbonitride produced by combustion synthesis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Microstructural study of titanium carbonitride produced by combustion synthesis
چکیده انگلیسی

The self-propagating high-temperature synthesis (S.H.S.) process, which is promising for the fabrication of ceramic materials, was chosen to elaborate titanium carbonitride materials. The influence of parameters such as nitrogen gas pressure and carbon ratio on the microstructure was studied. A single phase product of Ti(C,N) is obtained for a carbon ratio under 15 at.% and a nitrogen pressure of 36 MPa. The increase of the carbon ratio corresponds to a decrease of the maximum temperature reached during the synthesis. Time resolved X-ray diffraction measurements (TRXRD) with the synchrotron radiation were used to determine the reaction mechanisms. We could observe that the synthesis of Ti(C,N) is preceded by the formation of titanium nitride. This reaction is initiated by the allotropic transition of α-Ti phase into β-Ti. In the final material the presence of sub-stoichiometric phases such as Ti2N and α-Ti was observed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 33, Issue 8, December 2007, Pages 1525–1534
نویسندگان
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