2,546 Result(s)

Article

The Influence of Pore-Structure on the Compressive Strength of Hardened Cement Paste

The pore-structure strongly influences the compressive strength of hardened cement paste (hcp) and other porous materials, as well as other mechanical properties. The simplest but most currently used expressio...

Huang Yiun-Yuan, Ding Wei, Lu ** in MRS Online Proceedings Library (1984)

Article

Exafs Analysis of Ionomers

Extended x-ray absorption fine structure (EXAFS) spectroscopy has beensuccessfully applied to the analysis of the ionic domain microstructure inzinc and rubidium neutralized ionomers. In dehydrated zinc neutra...

Y. S. Ding, H. K. Pan, R. A. Régister, S. L. Cooper in MRS Online Proceedings Library (1986)

Article

Ion-Beam Mixing and Amorphization in Au/Zr Bilayers

Au/Zr bilayer films with inert-gas markers were produced by low energy (< 4 keV) implantation. Mass transport was measured during ion-beam mixing with 1 MeV Kr at several temperatures between 330 and 540K. Two...

Fu-Rong Ding, P. R. Okamoto, L. E. Rehn in MRS Online Proceedings Library (1987)

Article

Laser-Initiated Aluminothermic Reaction Applied to Preparing Mo-Si Film on Silicon Substrates

Mo-Si films on silicon substrates has been prepared by the CO² laser-initiated aluminothermic reaction. The features of these films have been characterized by RBS, AES, etc. The formation mechanism is discussed.

Li Ding, Lu Xuebiao, Zhou Zhengzhuo, Qiu Mingxin… in MRS Online Proceedings Library (1987)

Article

Properties of laser-induced thermochemical etching of InP

The properties of laser-induced thermochemical etching of InP were investigated with a visible multiline Ar⁺ laser and reactant gas Cl₂ for the first time. Two thresholds of light intensity were observed, respect...

Li Ding, Qiu Mingxin, Kuang Zhong in Journal of Electronic Materials (1988)

Article

Reaction of 1,4-poly(2-trimethylsilylmethyl-1,3-butadiene) with phenylsulfenyl chloride

Reaction of 1,4-poly(2-trimethylsilylmethyl-1,3-butadiene) with phenylsulfenyl chloride yields predominantly poly(3-methylene-2-phenylthiobutane). The mechanism of this reaction is discussed. The product polym...

Yi-**ang Ding, William P. Weber in Polymer Bulletin (1988)

Article

Development of viscoplastic constitutive equation through biaxial material testing

Internal-state variables have been used to represent the deformation historyin the recently proposed viscoplastic constitutive equations. In the current study, creep tests under nonproportional loadings were u...

J. L. Ding, S. R. Lee in Experimental Mechanics (1988)

Article

Characterization of doped Nd-based superconductors

Y-, Dy-, and Gd-doped neodymium (Nd) superconductors (RE_0.1Nd_0.9Ba₂-Cu₃O_y) exhibited sharp resistivity transitions at 92 K. DC susceptibility measurements gave a common curve with diamagnetic onsets at 93 K and t...

W. D. Arnett, D. R. Zint, C. E. Hamrin Jr.… in Journal of Superconductivity (1988)

Article

Viscoplastic flow due to penetration: a free boundary value problem

Under the action of a pressure gradient, a solid body B penetrates into another body. Body B is assumed to be of an incompressible, viscoplastic, Bingham material. As a first model, the problem may be treated one...

Dang Ding Ang, Tim Folias, Fritz Keinert… in International Journal of Fracture (1989)

Article

Addition of dichlorocarbene to cis-1,4-poly(2-trimethylsilylmethyl-1,3-butadiene)

Copolymers made up of 1,4-(2,3-dichloromethylene-2-trimethylsilylmethyl-1,3-butadiene) (I) and 1,5-(3-chloro-2-methylene-pent-3-ene) (II) units have been prepared by potassium fluoride elimination of trimethyl...

Wan Jiang, Yi-**ang Ding, William P. Weber in Polymer Bulletin (1989)

Article

Ion Beam Method to Study Fractal Aggregation of Magnetic Particles on Thin Solid Films:

This paper presents the experimental observations of Fractal Aggregates on thin solid films after either directly thin film deposition or additional ion irradiation. A linear correlation was found between the ...

J. R. Ding, L. Huang, B. X. Liu in MRS Online Proceedings Library (1989)

Article

Investigation of the Interface Integrity of the Thermally Stable Wn/GaAs Schottky Contacts

WN_x,/GaAs Schottky contacts formed by reactive sputtering were found to be thermally stable up to an annealing temprature of ∼9400°C. The interface morphology and structure of this contact under high temperature ...

J. Ding, B. Lee, K. M. Yu, R. Gronsky, J. Washburn in MRS Online Proceedings Library (1989)

Article

Silicophosphate-containing quartz ceramics

M. T. Mel'nik, Nguyen Ding Ngi in Glass and Ceramics (1990)

Article

All-optical fibre devices using polarization ellipse rotation

In optical fibres with very low birefringence, non-linear polarization coupling occurs because of the well-known ellipse rotation induced by the Kerr effect. This may be of use of future all-optical signal-pro...

Gang-Ding Peng, Adrian Ankiewicz in Optical and Quantum Electronics (1990)

Article

Application of the method of optical caustics to the study of high-temperature creep fracture

For the first time the time-dependent transition of the crack-tip fields can be observed. To interpret what is observed will, of course, require a more in-depth investigation. Nevertheless, the current explora...

J. L. Ding, G. L. Panger Jr. in Experimental Techniques (1990)

Article

Magnetic hyperfine fields in ultrathin Ni films on Cu(100)

The magnetic hyperfine field was measured at ¹¹¹In(¹¹¹Cd) probe atoms in ultrathin Ni films epitaxially grown on Cu(100) utilizing the perturbed γγ-angular correlation (PAC) method. The behaviour of the hyperfine...

J. Voigt, X. L. Ding, R. Fink, G. Krausch, B. Luckscheiter, R. Platzer… in Applied Physics A (1990)

Article

Microwave properties of highly oriented YBa₂Cu₃O₇-δ superconducting thin films

We have performed millimeter-wave frequency (94 GHz) measurements on high-quality YBa₂Cu₃O₇-δ superconducting films on yttrium-stabilized (100) ZrO₂ and MgO substrates. The ∼0.2μm thin films fabricated by magnetr...

Bao Jia-shan, Zhou Shi-**, Wu Ke-qing, Lou Wei-gen… in Journal of Superconductivity (1991)

Article

Study on structure-property relationship of polyimide blends

Three pairs of polyimide/polyimide blends (50/50 wt%) with different molecular structures were prepared by two ways, i.e. mixing of the polyamic acid precursors with subsequent imidization, and direct solution...

Zhenhua Sun, Haiying Li, Yugang Zhuang, Mengxian Ding, Zhiliu Feng in Polymer Bulletin (1991)

Article

Metastable Phase Formation in the Y-TI System by Ion Mixing

Amorphization behavior was studied for the Y-Ti system, which has rather positive heat of formation being around + 22 kJ/mol, by room temperature 360 keV xenon ion mixing of Y_xTi_100-xmultilayered films to various...

S. L. Lai, Z. J. Zhang, J. R. Ding, B. X. Liu in MRS Online Proceedings Library (1991)

Article

Al-Yb Amorphous Alloys Produced by Ion Mixing or Solid State Reaction

We report, in this paper, three different ways of producing amorphous alloys in the Al-Yb system, (i) Al₈₀Yb₂₀multilayered films were readily amorphized by 180 keV xenon ion mixing at room temperature(RT) to a do...

B. X. Liu, J. R. Ding, D. Z. Che, H. B. Zhang in MRS Online Proceedings Library (1991)