تقرير
Impact of directional walk on atom probe microanalysis
| العنوان: | Impact of directional walk on atom probe microanalysis |
|---|---|
| المؤلفون: | Gault, Baptiste, Danoix, Frederic, Hoummada, Khalid, Mangelinck, Dominique, Leitner, Harald |
| المصدر: | Ultramicroscopy, Volume 113, February 2012, Pages 182-191 |
| سنة النشر: | 2015 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | In the atom probe microanalysis of steels, inconsistencies in the measured compositions of solutes (C, N) have often been reported, as well as their appearance as molecular ions. Here we propose that these issues might arise from surface migration of solute atoms over the specimen surface. Surface migration of solutes is evidenced by field-ion microscopy observations, and its consequences on atom probe microanalysis are detailed for a wide range of solute (P, Si, Mn, B, C, N). It is proposed that directional walk driven by field gradients over the specimen surface and thermally activated is the prominent effect. Comment: 30 pages , 10 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.ultramic.2011.06.005 |
| URL الوصول: | http://arxiv.org/abs/1510.02846 |
| رقم الأكسشن: | edsarx.1510.02846 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.ultramic.2011.06.005 |
|---|