The ternary systems: CrAlC, VAlC, and TiAlC and the behavior of H-phases (M2AlC)
作者:J.C. Schuster、H. Nowotny、C. Vaccaro
DOI:10.1016/0022-4596(80)90569-1
日期:1980.4
Phase relationships in the ternarysystemsCrAlC, VAlC, and TiAlC have been investigated. All previously reported ternary H-phaseMe2AlC(Me =Cr, V, Ti) and the perovskite phase Ti3AlC are confirmed. No new ternary phase was found. At 1000°C Ti2AlC and Ti3AlC are coexistent. In addition, the H-phase was found in equilibrium with TiC1−x, TiAl3, and TiAl; the perovskite with TiC1−x, Ti3Al, and Ti (solid
Influence of the V content on microstructure and hardness of high-energy ball milled nanocrystalline Al-V alloys
作者:J. Esquivel、R.K. Gupta
DOI:10.1016/j.jallcom.2018.05.132
日期:2018.9
Abstract Nanocrystalline Al- x V ( x = 0, 0.5, 2, 5, 10 and 20 at. %) alloys were produced by high-energyballmilling (HEBM) followed by consolidation at room temperature under uniaxial pressure of 3 GPa. Grain size, dispersion of the alloying element (V) and formation of solid solution were studied using X-ray diffraction (XRD) analysis and scanning electron microscope (SEM) coupled with energy dispersive
摘要 通过高能球磨 (HEBM) 制备纳米晶 Al-x V ( x = 0, 0.5, 2, 5, 10 和 20 at. %) 合金,然后在 3 GPa 单轴压力下室温固结。使用 X 射线衍射 (XRD) 分析和扫描电子显微镜 (SEM) 结合能量色散 X 射线光谱 (EDXS) 研究晶粒尺寸、合金元素 (V) 的分散和固溶体的形成。高能球磨赋予 V 在 Al 中的纳米晶体结构和高固溶度 - 比热力学预测值高几个数量级。Al-x V 合金的硬度随着 V 含量的增加而增加,高于商业铝合金。
Anomalous temperature and disorder dependences of electron-phonon scattering rate in impure<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>V</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mtext>Al</mml:mtext></mml:mrow><mml:mi>x</mml:mi></mml:msub></mml:mrow></mml:math>alloys
作者:A. K. Meikap、Y. Y. Chen、J. J. Lin
DOI:10.1103/physrevb.69.212202
日期:——
Using weak-localization studies, we have measured the electron-phonon scattering time tau(ep) in a series of V1-xAlx alloys having the characteristic of ql<<1, where q is the wave number of the thermal phonons and l is the electron elastic mean free path. We find an anomalous electron-phonon scattering rate obeying a quadratic temperature dependence as well as a linear mean-free-path dependence, i.e., tau(ep)(-1)similar toT(2)l. This result cannot be explained in terms of existing theories for the electron-phonon interaction in impure conductors.
Observation of the new binary low temperatures compound AlV