iron-niobium

• 分子结构分类: 无机化合物 - 均相金属化合物 - 均相过渡金属化合物
• 英文名称: iron-niobium
• 英文别名: niobium iron；Iron;niobium
• 化学式: FeNb
• 分子量: 148.753
• InChiKey: JMAHHHVEVBOCPE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  2
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  环氧乙烷 、 iron-niobium 以 gas 为溶剂， 生成
  参考文献：
  名称：

  气相中的异核过渡金属簇离子：铁铌的热化学和反应性（NbFe +和NbFeL +； L = O，CO，H2O和烯烃）

  摘要：

  DOI：

  10.1021/j100346a059
• 作为产物：
  描述：

  在 H₂ 作用下， 生成 iron-niobium
  参考文献：
  名称：

  The occurrence of high-speed steel carbide-type η phases in the Fe-Nb system

  摘要：

  DOI：

  10.1016/0022-5088(85)90396-0

文献信息

• Magnetic phase diagrams of NbxFe100−x and TaxFe100−x amorphous alloy systems
  作者：M Ohta、A Fujita、K Fukamichi

  DOI：10.1016/s0925-8388(00)00893-8

  日期：2000.8

  and Ta x Fe 100− x amorphous alloy systems have been investigated. The phase transition from the paramagnetic state to the spin-glass state was observed above about x =34% for Nb x Fe 100− x and x =36% for Ta x Fe 100− x amorphous alloys. The re-entrant spin-glass behavior was confirmed below these concentrations. The saturation magnetic moment M s of both amorphous alloy systems decreases with increasing

  摘要 研究了Nb x Fe 100- x 和Ta x Fe 100- x 非晶合金系统的磁相图。观察到从顺磁态到自旋玻璃态的相变对于 Nb x Fe 100- x 约 x = 34%，对于 Ta x Fe 100- x 非晶合金 x = 36%。在这些浓度以下证实了重入自旋玻璃行为。两种非晶合金系统的饱和磁矩 M s 都随着 x 的增加而减小。由于平均 Fe-Fe 原子间距离较短，与其他 Fe 基非晶合金系统（如La-Fe、Ce-Fe 和 Lu-Fe。
• Experimental investigation of phase equilibria in the Fe–Nb–Si ternary system
  作者：Dong Wang、Shuiyuan Yang、Mujin Yang、Jianping Zheng、Hongfa Hu、Xingjun Liu、Cuiping Wang

  DOI：10.1016/j.jallcom.2014.03.167

  日期：2014.8

  The phase equilibria of the Fe-Nb-Si ternary system were investigated by electron probe microanalyzer (EPMA), back scattered electron (BSE), X-ray diffraction (XRD) and differential scanning calorimetry (DSC) on the equilibrated alloys. In this study, three isothermal sections of the Fe-Nb-Si ternary system at 1200 degrees C, 1100 degrees C and 1000 degrees C were respectively determined and six ternary compounds were confirmed. The obtained experimental results show that there are large solubilities of Si in the epsilon NbFe2 and mu FeNb phases. The newly determined phase equilibria of the Fe-Nb-Si system will provide useful information for silicon steels development. (C) 2014 Elsevier B.V. All rights reserved.
• Low Temperature Specific Heat of Laves Phase AFe₂Compounds (A=Nb, Ta and Ti)
  作者：Hirofumi Wada、Masayo Hada、Masayuki Shiga、Yoji Nakamura

  DOI：10.1143/jpsj.59.701

  日期：1990.2.15
• Weak Antiferromagnetism in NbFe₂
  作者：Yoshihiro Yamada、Akihiko Sakata

  DOI：10.1143/jpsj.57.46

  日期：1988.1.15
• Magnetic orderings and temperature dependence of the hysteresis loops of Nb1−xFe2+x
  作者：R. Sato Turtelli、J.P. Sinnecker、R. Grössinger、A. Penton-Madrigal、E. Estevez-Rams

  DOI：10.1016/j.jmmm.2007.02.197

  日期：2007.9

  Investigations of the magnetic properties of NbFe2 were performed by measuring the temperature dependence of hysteresis loops, initial AC-susceptibility and zero field cooled (ZFC)-FC magnetizations in a wide field range of 50 Oe <=mu H-0 <= 8000 Oe. Two well-defined peaks, at 4.8 and 21.4 K, were found in the AC-susceptibility curve, and only the first peak is sensible to a frequency change of the applied field. The peak changes to high temperature and its intensity decreases with increasing frequency, thus showing a relaxation phenomenon. In ZFC magnetization at 50 Oe, the peaks occur at 3.4 and 21.4 K. With increasing DC field, both peaks are shifted to low temperatures; however, the first peak disappears at fields higher than 100 Oe and a field higher than 1250 Oe suppresses the second peak. A third maximum merges from the magnetization curve at around 7K in a field of 500 Oe, in which case, the maximum is suppressed by an external field higher than 4000 Oe. One can suggest that the ordered state of the stoichiometric NbFe2 is a spin density wave (SDW) and both ferro- and antiferromagnetic spin fluctuations coexist. (C) 2007 Published by Elsevier B.V.