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MnBi

中文名称
——
中文别名
——
英文名称
MnBi
英文别名
bismuthane;manganese
MnBi化学式
CAS
——
化学式
BiMn
mdl
——
分子量
263.918
InChiKey
YMBVRYHIKPMTOL-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    -1.19
  • 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:
    MnBi氧气 生成 水合锰
    参考文献:
    名称:
    Spin reorientation in MnBi
    摘要:
    High purity MnBi was prepared by arc-melting under He gas. The prepared samples have the property of being hard to oxidize in air and progress of oxidation was not observed by X-ray diffraction 1 year later. It is easy to pulverize a good quality sample into powder even in air. We confirmed that coercive force at room temperature depends on the powder size and takes a value of S kOe for less than 400 mesh. The permeability has a hysteresis in a temperature range between 77 and 300 K and exhibits a maximum at 100 It corresponding to the spin reorientation temperature T,. The pressure (P) dependence of I; was examined by measuring the permeability at various pressures. The value of dT(t)/dP was obtained to be 9.6 K/kbar. The results of thermal expansion revealed that both the lattice parameters a and c increase abruptly near 250 K. (C) 2001 Elsevier Science B.V. All rights reserved.
    DOI:
    10.1016/s0925-8388(00)01352-9
  • 作为产物:
    描述:
    为溶剂, 生成 MnBi
    参考文献:
    名称:
    从层状反铁磁体到 3D 铁磁体:LiMnBi 到 MnBi 磁结构转变
    摘要:
    金属间化合物 LiMnBi 是通过元素的两步固相反应合成的。根据原位高温粉末X射线衍射数据选择850 K的合成温度。LiMnBi 在层状 PbClF 结构类型中结晶(a = 4.3131(7) Å,c = 7.096(1) Å 在 100 K,P 4/ nmm空间群,Z = 2)。根据单晶 X 射线衍射数据确定,LiMnBi 结构由交替的 [MnBi] 和 Li 层构成。磁性能测量和固态7为多晶 LiMnBi 样品收集的 Li 核磁共振数据表明,Mn 亚晶格在 ~340 K 处的长程反铁磁有序,在低至 5 K 时未检测到超导性。LiMnBi 对空气和水敏感。在有氧条件下,Li可以从LiMnBi结构中脱出,形成Li 2 O/LiOH和MnBi(NiAs结构类型,P 6 3 / mmc)。先前报道获得的 MnBi 多晶型物是最强的无稀土铁磁体之一,但其粉末形式的批量合成很麻烦。所提出的从三元 LiMnBi
    DOI:
    10.1021/acs.chemmater.3c00140
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文献信息

  • Coercivity enhancement and magnetization process in Mn55Bi45 alloys with refined particle size
    作者:Zhen Xiang、Yiming Song、Dong Pan、Yulong Shen、Liwei Qian、Zhengyi Luo、Yongsheng Liu、Huawei Yang、Hai Yan、Wei Lu
    DOI:10.1016/j.jallcom.2018.02.102
    日期:2018.5
    Abstract The MnBi permanent magnetic alloys with high coercivity was prepared by a low-energy ball milling process. The coercivity of the MnBi alloys can be controlled by tuning the particle size and the size distribution of the MnBi alloys powders through the milling process. The size-dependent coercivity of the particles was expressed by a function of Hc = 106.17−0.56·log(D), where the particle size
    摘要 采用低能球磨工艺制备了高矫顽力MnBi永磁合金。MnBi合金的矫顽力可以通过研磨过程调节MnBi合金粉末的粒度和粒度分布来控制。粒子的尺寸相关矫顽力由 Hc = 106.17-0.56·log(D) 的函数表示,其中粒子尺寸 (D) 应该大于单畴尺寸。通过优化处理,MnBi 粉末的室温矫顽力达到~1.9 T。磁化曲线和微磁分析表明MnBi合金的磁化过程受相干磁化旋转控制。硬化机理与细化粒径的各向异性 MnBi 粉末的形核过程相对应。
  • Effects of Ga-doping on the microstructure and magnetic properties of MnBi alloys
    作者:Yang Yang、Jong-Woo Kim、Ping-Zhan Si、Hui-Dong Qian、Yongho Shin、Xinyou Wang、Jihoon Park、Oi Lun Li、Qiong Wu、Hongliang Ge、Chul-Jin Choi
    DOI:10.1016/j.jallcom.2018.07.311
    日期:2018.11
    temperature phase Mn55Bi45-xGax (x = 0, 1, 3, 5, and 10) alloys were prepared by induction melting process with subsequent low temperature annealing. The effects of Ga-doping on the crystal structure and magnetic properties of the alloys were systematically studied. The room temperature coercivities of Mn55Bi45-xGax after ball milling increased from 1.43 T for x = 0 to 1.66 T for x = 5, while the saturation
    摘要 低温相Mn55Bi45-xGax (x = 0, 1, 3, 5, 10)合金是通过感应熔炼工艺和随后的低温退火制备的。系统研究了Ga掺杂对合金晶体结构和磁性能的影响。球磨后 Mn55Bi45-xGax 的室温矫顽力从 x = 0 的 1.43 T 增加到 x = 5 的 1.66 T,而饱和磁化强度从 60.7 Am2/kg (x = 0) 降至 45.1 Am2/kg (x = 5)。Mn55Bi44Ga粉末的最大能积(BH)max达到7.87 MGOe。随着 Ga 浓度在 0 ≤ x ≤ 5 的范围内增加,Mn55Bi45-xGax 合金的居里温度从 633 K 增加到 658 K。
  • Effect of phase purity on enhancing the magnetic properties of Mn-Bi alloy
    作者:Yang Yang、Jihoon Park、Jung Tae Lim、Jong-Woo Kim、Oi Lun Li、Chul-Jin Choi
    DOI:10.1016/j.jmmm.2020.167344
    日期:2021.1
    Abstract High purity MnBi magnetic low temperature phase (LTP) were prepared via induction melting, annealing and low energy ball milling. The effects of synthetic parameters and chemical compositions on phase purity and magnetic properties were systematically investigated. A homogenization heat treatment process was employed to increase the fraction of LTP MnBi, which showed notably high saturation
    摘要 通过感应熔炼、退火和低能球磨制备了高纯度MnBi磁性低温相(LTP)。系统地研究了合成参数和化学成分对相纯度和磁性能的影响。采用均质化热处理工艺来增加 LTP MnBi 的含量,显示出高达 74.8 Am2/kg 的显着高饱和磁化强度 (Ms),纯度为 97 wt.% LTP MnBi。MnBi 的纯度与退火锭中的 Mn 和残余 Bi 量密切相关。通过控制残留物,Mn56Bi44的原子比获得最高的相分数。在室温下 1.5 T 的外加磁场下记录的最大能量积 (BH)max 为 11.7 MGOe,使 MnBi 成为一种很有前途的无稀土永磁体。
  • Effect of ball milling and heat treatment process on MnBi powders magnetic properties
    作者:Wei Xie、Evgueni Polikarpov、Jung-Pyung Choi、Mark E. Bowden、Kewei Sun、Jun Cui
    DOI:10.1016/j.jallcom.2016.04.097
    日期:2016.9
    purity, and finished with low energy ball milling at cryogenic temperature to achieve submicron particle size. The Mn 55 Bi 45 powders were decomposed during ball milling process and recovered during 24 h 290 °C annealing process. With increasing ball-milling time, the saturation magnetization of MnBi decreases, while the coercivity increases. Annealing after ball milling recovers some of the magnetization
    摘要 金属化合物MnBi具有较高的内禀矫顽力和较大的正温度系数。MnBi 的矫顽力分别在 300 K 和 523 K 下超过 12 kOe 和 26 kOe。因此,MnBi 是交换耦合纳米复合磁体中硬相的良好候选物。为了使软相的负载最大化,MnBi 颗粒的尺寸必须接近 500 nm,即单磁畴的尺寸。低能研磨是降低 MnBi 粒径的常用方法。然而,只有 3-7 μm 大小的颗粒才能实现而不会发生明显的分解。在这里,我们报告了我们使用传统粉末冶金方法制备亚微米 MnBi 粉末的努力。采用电弧熔炼法制备Mn 55 Bi 45 磁粉,然后进行一系列热机械处理以提高纯度,并在低温下进行低能球磨以达到亚微米粒度。Mn 55 Bi 45 粉末在球磨过程中分解,并在 24 小时 290 °C 退火过程中回收。随着球磨时间的增加,MnBi的饱和磁化强度降低,而矫顽力增加。球磨后的退火恢复了部分磁化强度,表明球磨过程中发生的分解可以逆转。Mn
  • Decoupling the structural and magnetic phase transformations in magneto-optic MnBi thin films by the partial substitution of Cr for Mn
    作者:Prabhakar R. Bandaru、Timothy D. Sands、Yukiko Kubota、Ernesto E. Marinero
    DOI:10.1063/1.121355
    日期:1998.5.4
    The first-order nature of the magnetic phase transformation at 360 °C and the presence of a Bi-rich eutectic at 265 °C have inhibited the application of MnBi thin films for high density magneto-optical data storage. It is suggested that partial substitution of Cr for Mn should both lower the Curie temperature, Tc, and decouple the lattice and magnetic transitions so as to allow reversible Curie point
    360°C 下磁相变的一级性质和 265°C 下富铋共晶的存在抑制了 MnBi 薄膜在高密度磁光数据存储中的应用。建议用 Cr 部分取代 Mn 既应降低居里温度、Tc,又可解耦晶格和磁性转变,从而实现可逆的居里点写入。实验发现,10% 的 Cr 取代 Mn 将表观 Tc 降低到~250°C,同时在 633 nm 处保持大于 1°的克尔旋转角,如通过石英玻璃基板测量的。MnBi 和 (Mn,Cr)Bi 薄膜中 Hc 随温度升高的观察结果表明低温相是亚铁磁性的。
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