التفاصيل البيبلوغرافية
| العنوان: |
Nanoscale Metastable ε-Fe 3 N Ferromagnetic Materials by Self-Sustained Reactions |
| المؤلفون: |
Mukasyan, Alexander S., Roslyakov, Sergey, Pauls, Joshua M., Gallington, Leighanne C., Orlova, Tatyana, Liu, Xinyu, Dobrowolska, Margaret, Furdyna, Jacek K., Manukyan, Khachatur V. |
| سنة النشر: |
2020 |
| مصطلحات موضوعية: |
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY, socio, geo |
| الوصف: |
A single-step method for the preparation of metastable ε-Fe 3 N nanoparticles by combustion of reactive gels containing iron nitrate (Fe(NO 3 ) 3 ) and hexamethylenetetramine (C 6 H 12 N 4 ) in an inert atmosphere is reported. The results of Fourier transform infrared spectroscopy (FTIR) and thermal analysis coupled with dynamic mass spectrometry revealed that the exothermic decomposition of a coordination complex formed between Fe(NO 3 ) 3 and HMTA is responsible for the formation of ε-Fe 3 N nanoscale particles with sizes of 5-15 nm. The magnetic properties between 5 and 350 K are characterized using a superconducting quantum interference device (SQUID) magnetometer, revealing a ferromagnetic behavior with a low-temperature magnetic moment of 1.09 μB/Fe, high room temperature saturation magnetization (~80 emu/g), and low remanent magnetization (~15 emu/g). The obtained value for the Curie temperature of ~522 K is close to that (~575 K) for bulk ε-Fe 3 N reported in the literature. |
| نوع الوثيقة: |
other/unknown material |
| اللغة: |
unknown |
| العلاقة: |
http://www.osti.gov/servlets/purl/1530155Test |
| الإتاحة: |
http://www.osti.gov/servlets/purl/1530155Test |
| حقوق: |
undefined |
| رقم الانضمام: |
edsbas.AC0D0A0E |
| قاعدة البيانات: |
BASE |
