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  1. No Access

    Chapter and Conference Paper

    Numerical Investigation on the Effect of Wear Coefficient on Fretting Wear

    Fretting happens when a relative slip occurs between two contact parts. Fretting wear is the main damage in gross slip regime. In most of current researches, the wear coefficient is commonly considered as a co...

    S. Wang, D. G. Wang, G. Z. **e… in Proceedings of 1st International Conferenc… (2021)

  2. No Access

    Article

    On the Measurements of Full-Disk Longitudinal Magnetograms at Huairou Solar Observing Station

    Reliable information on the distribution of magnetic fields across the whole surface of the Sun is urgently needed to predict conditions in the solar corona, in the interplanetary medium, and in the near-Earth...

    M. L. Demidov, X. F. Wang, D. G. Wang, Y. Y. Deng in Solar Physics (2018)

  3. No Access

    Article

    Friction and Wear Behavior of Wear-Resistant Belts in Drill Joints for Deep and Ultra-Deep Wells

    The friction and wear of an new material for the drill joint were compared with those of traditional wear-resistant belt materials using an SD-1 test rig against a 42Mn2V steel counterface under deep and ultra...

    K. Zhang, Z. Q. Wang, D. G. Wang in Strength of Materials (2018)

  4. No Access

    Article

    HA/Bioglass composite films deposited by pulsed laser with different substrate temperature

    In this experiment, the HA/Bioglass composite films on Ti–6Al–4V were deposited by a pulsed laser at Ar atmosphere, and the influence of substrate temperature on the morphology, phase constitutions, bonding co...

    D. G. Wang, C. Z. Chen, Q. P. **, H. C. Li, Y. K. Pan in Applied Physics A (2014)

  5. No Access

    Article

    Crystallization, mechanical properties and in vitro bioactivity of sol–gel derived Na2O–CaO–SiO2–P2O5 glass–ceramics by partial substitution of CaF2 for CaO

    The partial substitution of CaF2 for CaO in the Na2O–CaO–SiO2–P2O5 system was conducted by the sol–gel method and a comparison of the glass–ceramic properties was reported. Based on thermogravimetric and differen...

    H. C. Li, D. G. Wang, J. H. Hu, C. Z. Chen in Journal of Sol-Gel Science and Technology (2013)

  6. No Access

    Chapter and Conference Paper

    Analysis of Waterfront Excavation Adjacent to Pile-supported Wharves

    The two-dimensional numerical simulations were carried out to investigate the performances of the diaphragm wall scheme and the composite steel sheet pile wall scheme for a waterfront braced excavation adjacen...

    Z. K. Cheng, D. G. Wang, Y. C. Ding… in New Frontiers in Engineering Geology and t… (2013)

  7. No Access

    Chapter and Conference Paper

    Numerical Analysis on Deformation of Braced Excavation with Top-down Method

    A three-dimensional numerical simulation based on FLAC3D was carried out to investigate the deformation characteristics of a braced excavation with top-down method in typical Shanghai soft soil deposits. The l...

    Y. C. Ding, D. G. Wang, J. C. Liu, K. H. Gu… in New Frontiers in Engineering Geology and t… (2013)

  8. No Access

    Article

    In vitro degradability and bioactivity of mesoporous CaO-MgO-P2O5-SiO2 glasses synthesized by sol–gel method

    Two glasses of the CaO-MgO-P2O5-SiO2 system with different MgO contents (0 and 10 mol%, respectively) have been synthesized by sol–gel method. The degradation of glass samples was evaluated through the weight los...

    J. Ma, C. Z. Chen, D. G. Wang, X. G. Meng… in Journal of Sol-Gel Science and Technology (2010)

  9. No Access

    Chapter and Conference Paper

    Research on Worn Mechanism of Disc-Brake Pair Materials for Drilling Rig

    A new build-up welding material for brake-disc and a new type of asbestos-free frictional material are developed, of which the tribological behaviours and wear mechanisms of build-up welding materials are disc...

    X. H. Wang, S. W. Zhang, D. G. Wang, N. Wu in Advanced Tribology (2010)

  10. No Access

    Chapter and Conference Paper

    Influence of the C+-Implantation Dose on the Wetting and Adhesion Properties of Silicon Surfaces

    Single crystal silicon wafers with the crystal orientation of (111) were implanted by carbon ion with the energy of 80 keV and doses of 2×1015 ions/cm2, 2×1016 ions/cm2 and 1×1017 ions/cm2. The crystal structures...

    D. G. Wang, D. K. Zhang in Advanced Tribology (2010)