An atomic resolution study of a carbide phase in platinum
| العنوان: | An atomic resolution study of a carbide phase in platinum |
|---|---|
| المؤلفون: | Cj. Echer, U. Dahmen, K.H. Westmacott, Christopher T. Nelson, M.J. Witcomb, J.H. Turner, M.A. O'Keefe |
| المصدر: | Proceedings, annual meeting, Electron Microscopy Society of America. 50:20-21 |
| بيانات النشر: | Cambridge University Press (CUP), 1992. |
| سنة النشر: | 1992 |
| مصطلحات موضوعية: | Materials science, chemistry, Atomic resolution, Phase (matter), Analytical chemistry, chemistry.chemical_element, General Medicine, Platinum, Carbide |
| الوصف: | Under normal circumstances, Pt dissolves only a very small amount of interstitial carbon in solid solution. Even so, an appropriate quench/age treatment leads to the formation of stable Pt2C {100} plate precipitates. Excess (quenched-in) vacancies play a critical role in the process by accommodating the volume and structural changes that accompany the transformation. This alloy system exhibits other interesting properties. Due to a large vacancy/carbon atom binding energy, Pt can absorb excess carbon at high temperatures in a carburizing atmosphere. In regions rich in carbon and vacancies, another carbide phase, Pt7C which undergoes an order-disorder reaction was formed. The present study of Pt carburized at 1160°C and aged at 515°C shows that other carbides in the PtxC series can be produced. |
| تدمد: | 2690-1315 0424-8201 |
| DOI: | 10.1017/s0424820100120503 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::84f688e91d6dde4033a0f595c8dd74de https://doi.org/10.1017/s0424820100120503 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........84f688e91d6dde4033a0f595c8dd74de |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 26901315 04248201 |
|---|---|
| DOI: | 10.1017/s0424820100120503 |