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titanium monoboride

中文名称
——
中文别名
——
英文名称
titanium monoboride
英文别名
titanium boride;Borane;titanium
titanium monoboride化学式
CAS
——
化学式
BTi
mdl
——
分子量
58.691
InChiKey
DJPUVUJMNVFDOX-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:
    2.0
  • 可旋转键数:
    0.0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    0.0
  • 氢给体数:
    0.0
  • 氢受体数:
    0.0

反应信息

  • 作为反应物:
    描述:
    纳米碳化钛titanium monoboride 以 neat (no solvent) 为溶剂, 生成 titanium diboride
    参考文献:
    名称:
    Pakholkov, V. V.; Brettser-Portnov, I. V.; Grigorov, I. G., Russian Journal of Inorganic Chemistry, 1991, vol. 36, p. 912 - 915
    摘要:
    DOI:
  • 作为产物:
    描述:
    四氢化物钛 在 B4C/SiC/Mn*Fe*C/KBF4 作用下, 以 neat (no solvent, solid phase) 为溶剂, 生成 titanium monoboride
    参考文献:
    名称:
    Microstructure of Face Centered Cubic (fcc) TiB Powder Synthesized by Boronizing of Ti Powder
    摘要:
    High resolution transmission electron microscopy (HRTEM) and X‐ray diffraction (XRD) techniques were used to examine the crystal structure of TiB ceramic powder synthesized by a Ti‐Boronizing method. The HRTEM analysis revealed that the synthesized titanium boride has fcc crystal structure, with titanium and boron atoms alternatively arranged like Na and Cl ions in NaCl‐type lattice. The crystal structure of this boride phase, denoted as fcc‐TiB in the paper, was confirmed also by XRD analysis and agrees with the data reported in the card PDF # 06‐641. This card is present in the powder diffraction file (PDF) database, but seldom quoted in literature because the typical crystal structure of TiB that forms in situ as a phase is orthorhombic. The present work reports new experimental data on the crystal properties of pure fcc‐TiB not yet reported in the literature. The lattice parameter of fcc‐TiB, calculated from XRD analysis, is a0=4.245 Å.
    DOI:
    10.1111/j.1551-2916.2012.05229.x
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文献信息

  • New criteria for the applicability of combustion synthesis: The investigation of thermodynamic and kinetic processes for binary Chemical Reactions
    作者:Xiaoming Tan、Xianli Su、Yonggao Yan、Ctirad Uher、Qingjie Zhang、Xinfeng Tang
    DOI:10.1016/j.jallcom.2020.158465
    日期:2021.4
    Combustion synthesis is a novel technique that utilizes the exothermic heat of a chemical reaction to maintain the reaction and to rapidly prepare materials. But, hitherto, none of unified criterion for the validation of combustion synthesis has been proposed. Herein, we proposed the conditions need to be met. In terms of kinetics, at the adiabatic temperature (Tad), the diffusion distance of atoms
    燃烧合成是一种利用化学反应的放热来维持反应并快速制备材料的新技术。但是,迄今为止,尚未提出用于验证燃烧合成的统一标准。在此,我们提出了需要满足的条件。就动力学而言,在绝热温度(T ad)下,原子的扩散距离(升Ť广告)在0.1 s内应大于反应物的粒径(d), 那是, 升Ť广告≥d。对于满足T ad / T m,L的系统≥1(其中T m,L是反应物的低熔点成分的熔点),液相的存在将原子的扩散距离从纳米显着增加到数十微米,从而成为标准升Ť广告≥d简化为T ad / T m,L≥在大多数情况下为1。在热力学方面,系统需要确保反应成分处于激活状态,即T ad / T m,H ≥0.7,其中T m,H是高熔点组分的熔点。本研究提出的SHS反应标准进一步提高了对SHS反应的理论理解,并为探索二元和多组分化合物的超快合成提供了指导。
  • The Unexpected Formation of MB <sub>2</sub> Layers (M = Refractory Metal) on Metal Surfaces
    作者:Wibke Friedhoff、Edgar Milke、Michael Binnewies
    DOI:10.1002/ejic.201001064
    日期:2011.8
    The reactions between refractory metals (Ti, Zr, V, Nb, Ta, Mo, W) and BCl3 vapour at high temperatures have been studied. For this purpose, the metal wires were heated up by an electrical current in a BCl3 atmosphere for a couple of hours. Optical and X-ray diffraction methods were used to analyze the solid products, whereas mass spectrometry was used to study the gas phase composition. In the reactions
    研究了难熔金属(Ti、Zr、V、Nb、Ta、Mo、W)与 BCl3 蒸气在高温下的反应。为此,金属线在 BCl3 气氛中通过电流加热几个小时。光学和 X 射线衍射方法用于分析固体产物,而质谱法用于研究气相组成。在与 Ti、Zr、V、Nb 和 Ta 的反应中,我们观察到在金属表面形成 MB2 层。钼与 MoB 反应形成,与钨完全没有反应。这与热力学预期相反。从热力学的角度讨论了涂层过程的机理。
  • Chemical Equilibria in the Titanium(ll) Hydride-Boron Nitride System
    作者:Ewa Benko
    DOI:10.1111/j.1151-2916.1995.tb08233.x
    日期:1995.3
    Calculations of chemical equilibria for the TiHsub 2}-BN system using the Villars, Cruise, Smith (VCS) algorithm were carried out for the 27--2,027 C temperature range and the 1.3 times} 10sup minus}3}--1 times} 10sup 7} Pa pressure range. Two BN:TiHsub 2} molar ratios were selected, 1:1 and 2:1. It follows from these studies that TiHsub 2} can react with BN in a very wide range of pressures
    使用 Villars, Cruise, Smith (VCS) 算法计算 TiHsub 2}-BN 系统的化学平衡是针对 27--2,027 C 温度范围和 1.3 times} 10sup minus}3 }--1 times} 10sup 7} Pa 压力范围。选择了两种 BN:TiHsub 2} 摩尔比,1:1 和 2:1。根据这些研究,TiHsub 2} 可以在很宽的压力和温度范围内与 BN 反应,产生新的相,即 TiBsub 2}、TiB 和 TiN。这些相的形成受到压力-温度参数的强烈影响。为了通过实验验证理论计算,制备等摩尔和 Z:1 BN:TiHsub 2} 批次并在真空、氩气气氛和高压下在 1,427°C 下加热。通过 X 射线衍射进行的相识别完全证实了计算结果。
  • Sequence of phase evolution during mechanically induced self-propagating reaction synthesis of TiB and TiB2 via magnetically controlled ball milling of titanium and boron powders
    作者:J.E. Oghenevweta、D. Wexler、A. Calka
    DOI:10.1016/j.jallcom.2017.01.016
    日期:2017.4
    nanocrystalline titanium diboride, which was confirmed by Raman spectroscopy to be of an off-stoichiometric, boron-lean composition; TiB2-x. This phase is believed to have formed by solid-state reaction at the interface of the heavily deformed Ti and amorphous B via a mechanism which parallels the formation of nanocrystalline off-stoichiometric Ti1+xC1-x prior to the self-propagating synthesis of TiC from Ti and
    摘要 以Ti50B50 和Ti34B66 为起始原子比,研究了钛和非晶硼元素混合物的机械诱导自蔓延反应合成硼化钛和二硼化物。在燃点之前和之后将样品研磨不同的时间,燃点由研磨机温度的原位监测确定。使用 X 射线衍射、扫描电子显微镜、高分辨率透射电子显微镜 (HRTEM) 和拉曼光谱的方法来确定产品演变。对于这两种组合物,无定形硼的部分结晶在研磨的早期阶段开始并进展到着火点。在后期和点火之前,HRTEM 结合电子衍射揭示了纳米晶二硼化钛的形成,经拉曼光谱证实,其为非化学计量的、贫硼的组成;TiB2-x。该相被认为是通过在严重变形的 Ti 和无定形 B 的界面处的固态反应形成的,其机制与在自蔓延合成 TiC 之前形成纳米晶非化学计量 Ti1+xC1-x 平行。钛和石墨。点火后,Ti34B66 的产品包含相对较大的 TiB2 刻面晶粒,液相由未反应的 Ti 薄区域烧结而成,由于高反应热而熔化。相比之下,Ti50B50
  • Microstructure and densification of the Ti6Al4V–70%TiB2 metal-ceramic by coupled multi-physical fields-activated sintering
    作者:Kunlan Huang、Wei Chen、Mingxia Wu、Jie Wang、Kyle Jiang、Jian Liu
    DOI:10.1016/j.jallcom.2019.153091
    日期:2020.4
    multi-physical fields activation sintering was introduced for the sintering of Ti6Al4V/TiB2 metal ceramics with an extremely high content of TiB2 and the effects of the processing parameters on the microstructures and densification of the metal ceramics were investigated. It is found that a relative density, 97.10%, of the sintered sample can be achieved when the case of temperature 1500 °C, heating rate 30 °C/s
    摘要 本研究介绍了一种称为耦合多物理场活化烧结的新型烧结方法,用于烧结具有极高 TiB2 含量的 Ti6Al4V/TiB2 金属陶瓷,并研究了加工参数对微观结构和致密化的影响。对金属陶瓷进行了研究。结果表明,当温度为1500℃、升温速率为30℃/s、压力为125MPa、停留时间为4mins时,烧结样品的相对密度可以达到97.10%。烧结样品的显微组织和晶界特征表明致密化过程与大量 TiB 纳米颗粒的形成和液态 Ti 相的形成密切相关。TiB 纳米颗粒是由于 Ti 和 TiB2 颗粒之间的反应而在 Ti 基体中形成的,而液相是由于在 Ti 和 TiB2 颗粒之间的界面产生大量焦耳热而产生的。由于 TiB2 和 Ti 之间的相互作用,在致密化过程中也会形成 TiB2-Ti-TiB 和 TiB2-Ti-TiB2 晶界结构。液相形成的毛细管力和界面处的反应烧结显着增强了致密化过程。
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