Skip to main content

14 Result(s)

within Y. J. Wu Remove this filter Characterization and Evaluation of Materials Remove this filter

and

  1. No Access

    Article

    Effect of Ni do** on the microstructure and magnetic properties of Fe–Ga ribbons

    A set of Ni do** Fe–Ga ribbons were fabricated using melt spinning method. The microstructure was studied using extended X-ray absorption fine structure spectroscopy (EXAFS), high resolution X-ray diffractio...

    H. Liu, Z. Z. Zhang, Y. J. Wu, L. M. Dong… in Journal of Materials Science: Materials in… (2019)

  2. No Access

    Article

    Microstructure and Mechanical Properties of Dissimilar Joints of Al-Mg2Si and 5052 Aluminum Alloy by Friction Stir Welding

    Al-Mg2Si alloy and 5052 Al alloy were welded successfully by friction stir welding (FSW) in this study. The results show that the alloy consists of three distinct zones after FSW: the base material zone (BMZ), th...

    B. W. Huang, Q. D. Qin, D. H. Zhang… in Journal of Materials Engineering and Perfo… (2018)

  3. No Access

    Article

    Synthesis and dielectric characteristics of La0.5Bi0.5MnO3 ceramics

    La0.5Bi0.5MnO3 ceramics with a single phase were prepared by a solid-state reaction method, and their dielectric properties were characterized. Two dielectric relaxations with a giant dielectric constant were ide...

    Y. J. Wu, Y. Q. Lin, S. P. Gu, X. M. Chen in Applied Physics A (2009)

  4. No Access

    Article

    Formation of a lamellar 14H-type long period stacking ordered structure in an as-cast Mg–Gd–Zn–Zr alloy

    A novel as-cast Mg96.82Gd2Zn1Zr0.18 alloy was produced by conventional ingot metallurgy. By scanning electron microscope and transmission electron microscope observations, its as-cast microstructure is mainly com...

    Y. J. Wu, D. L. Lin, X. Q. Zeng, L. M. Peng, W. J. Ding in Journal of Materials Science (2009)

  5. No Access

    Article

    Preparation of high-quality ß-SiC nanowhiskers by using carbon fibres as carbon source

    Y. J. Wu, W. Qin, Z. X. Yang, J. S. Wu, Y. F. Zhang in Journal of Materials Science (2004)

  6. No Access

    Article

    Structure and spectroscopic characterization of polycrystalline vanadyl phthalocyanine (VOPc) films fabricated by vacuum deposition

    Y.L. Pan, Y.J. Wu, L.B. Chen, Y.Y. Zhao, Y.H. Shen, F.M. Li, S.Y. Shen… in Applied Physics A (1998)

  7. No Access

    Article

    Dielectric characteristics of Ba(Mg1/3Ta2/3)O3 ceramics sintered at low temperatures

    Dielectric characteristics of Ba(Mg1/3Ta2/3)O3 ceramics (BMT ceramics) sintered at low temperatures with 2–3 wt% NaF additives were determined. A dielectric constant of 25 and extremely low dielectric loss (< 0.0...

    X. M. Chen, Y. J. Wu in Journal of Materials Science: Materials in Electronics (1996)

  8. No Access

    Article

    Effects of NaF upon sintering temperature of Ba(Mg1/3Ta2/3)O3 dielectric ceramics

    The effects of NaF additive upon the sintering temperature of Ba(Mg1/3Ta2/3)O3 dielectric ceramics were investigated, and the densification of the present ceramics could be performed well at lower temperatures, e...

    X. M. Chen, Y. J. Wu in Journal of Materials Science: Materials in Electronics (1996)

  9. No Access

    Chapter

    2-Dimensional Mosfet Analysis Including Impact Ionization by Self-Consistent Solution of the Boltzmann Transport and Poisson Equations Using a Generalized Spherical Harmonic Expansion Method

    We present a new 2-D MOSFET simulation tool which employs a spherical harmonic expansion to deterministically solve the Boltzmann transport equation (BTE), and thereby provide the distribution function for the...

    W. C. Liang, Y.-J Wu, K. Hennacy, S. Singh, N. Goldsman… in Hot Carriers in Semiconductors (1996)

  10. No Access

    Article

    Study of Oxidation Properties of Amorphous Si:B Films

    Thin films of an amorphous silicon-boron alloy with boron content 1–50 at.% have been deposited by low pressure chemical vapor deposition (LPCVD). The boron content and film thickness of the samples were contr...

    G.-R. Yang, T.C. Nason, Y.-J. Wu, B. Y. Tong, S. K. Wong in MRS Online Proceedings Library (1991)

  11. No Access

    Article

    Raman Scattering in Electrochemically Prepared Porous Silicon

    Porous silicon of various porosity has been prepared by electrochemical etching of silicon with different do** levels. Room temperature photoluminescence in the visible range is observed from the powder scra...

    Y. -J. Wu, X. -S. Zhao, P. D. Persans in MRS Online Proceedings Library (1991)

  12. No Access

    Article

    Growth of Microcrystalline Silicon in Ultrathin Layers

    We report recent studies of the crystallization of ultrathin (< 10 nm ) amorphous silicon layers clad by silicon dioxide. We observe changes in Raman scattering spectra which indicate that nanocrystalline sili...

    Y.-J. Wu, P. D. Persans, B. Abeles, S.-L. Wang in MRS Online Proceedings Library (1989)

  13. No Access

    Article

    Structural Stability of Amorphous Semiconductor Superlattices

    We report recent results of studies of the structure and thermal stability of periodic multilayers based on hydrogenated amorphous silicon, hydrogenated amorphous germanium, silicon nitride and silicon oxide. ...

    P. D. Persans, A. F. Ruppert, B. Abeles, Y. J. Wu… in MRS Online Proceedings Library (1989)

  14. No Access

    Article

    Raman Studies of Microstructural Changes in Amorphous Silicon-Boron Alloys Due to Annealing

    Crystallization of amorphous Sil−x.Bx alloy films by annealing is studied. Amorphous Sil−xBx. alloy films with composition of boron x ranging from 0.01 to 0.5 are deposited on Si substrates at a temperature of 48...

    G. Yang, P. Bai, Y.-J Wu, B. Y. Tong, S. K. Wong, J. Du… in MRS Online Proceedings Library (1989)