Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The electron and hole conductivity of solid solutions was measured by dc polarization method using a modified Hebb–Wagner's ion blocking cell at 973, 1073, 1173, and as a function of oxygen partial pressure. All measured data were fitted to the sum of the electron conductivity having a dependence and the hole conducti…
Novel piezoelectric actuators (stack actuator and flextensional actuator) and ultrasonic motors are presented for cryogenic actuations utilizing the excellent cryogenic properties of recently invented single crystal piezoelectrics (PMN‐PT and PZN‐PT crystals). Single crystal piezoelectrics exhibit large increases in s…
The present paper reports the preparation of non-oxide ceramic fibers through the Polymer-Derived Ceramics (PDCs) route. The poly[B-(methylamino)borazine]-derived boron nitride (BN) ceramic fibers and modified C-B-C-bridged polysilazanes-derived silicoboron carbonitride (SiBCN) ceramic fibers were used as models. The…
Based on the molecular dynamics method and improved reactive empirical bond order potential, Green-Kubo function is used to calculate the thermal conductivity of carbon nanotube. The overlapping method is used which shortens the simulation time greatly. The result shows that the most significant contribution to the th…
Ceria (CeO 2 ) nanowires have been successfully synthesized by a sonochemical method in ambient air and alkali aqueous solution from CeO 2 nanoparticles without using any templates. The results showed that both alkali concentration and ultrasonic irradiation played critical roles in the formation of the nanowires. The…
Purpose: The purpose of this procedure is to standardize the procedure for the X-ray diffraction measurements of lattice parameters and crystallite sizes of carbon materials. This specification is expected to be used to characterize the structure not only in research laboratories but also in companies producing and us…
Linear acoustic pressure field is obtained by solving the homogenous Helmholtz equation using FEMLAB package (COMSOL Multi-physics 3.2b). The pressure field is used to calculate the collapse pressure of the transient cavitation bubbles by using the cavity cluster approach (1). The regions where the local pressure exce…
The magnetoelectric effect can be observed in the composites of magnetostrictive and piezoelectric phases by the the mechanical transfer from one to the other. The large magnetoelectric effect exists in the multiferroic composites with Pb(Zr,Ti)O3 rod arrays embedded in a ferromagnetic medium of (Tb,Dy)Fe2/epoxy. The…
Two crystalline modifications ( I and II ) of the phenanthroline complex of europium nitrate with the same chemical composition, Eu(NO 3 ) 3 ( Phen ) 2 , are synthesized under different conditions by varying the solvents, temperatures, and crystallization rates. The crystal structures of these modifications are determ…
The goals of this study were to assess the influence of temperature and pH on the corrosion resistance of Nitinol. Electropolished NiTi and passivated 316L stainless steel wires were tested in Hank's physiological solution at temperatures ranging from 10°C to 80°C and pH varying from 1 to 9. Results show that the abil…
The effect of a grain boundary on deformation has been examined using an aluminum bicrystal specimen composed of crystals having a common tensile axis of [100] by the measurement of orientation change with the electron backscatter diffraction technique. After deformation to a strain of 20%, the crystal rotation axis (…
Introduction: In the present study, we hypothesized that a novelapproach to promote vascularization would be to create injectablethree dimensional (3-D) scaffolds within growth factor that enhancethe sustained release of growth factor and induce the angiogenesis.Material and Methods: We demonstrate that a 3-D scaffold…
Effect of Nb addition on mechanical properties and shape memory behavior of Ti–Mo–Ga alloys was investigated by cyclic loading-unloading tensile tests, tensile tests at various temperatures and Vickers hardness tests. The martensitic transformation start temperature (Ms) decreased by 20 K with 1 at% increase of Nb con…
Material Degradation during Isothermal Aging and Thermal Cycling of Hybrid Mica Seal with Ag Interlayer under SOFC Exposure Conditions, Chou, Yeong-Shyung, Stevenson, Jeffry W., Hardy, John S., Singh, Prabhakar
The first observation of a spin polarized excited state of a paramagnetic metal-complex using time-resolved electron paramagnetic resonance (TREPR) spectroscopy is reported for octaethylporphinatooxovanadium(iv). The TREPR spectra show well resolved orientation dependent hyperfine splitting to the I = 7/2 vanadium nuc…
Potential, pH, and their gradients are important parameters in determining the electrochemical reactivity of metals in crevices. Although an voltage alone can be responsible for the activation of crevice corrosion that occurs immediately, changes in pH may be necessary for crevice corrosion to occur in the delayed for…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation C. Tyler, J. C. F. Millett, N. K. Bourne; Spallation in Ti‐6Al‐4V: Stress Measurements and Recove…
A long-term fertilizer experiment, over 10 years, studied the effect of NPK fertilizers alone and in combination with green manuring (Sesbania aculeata) or farmyard manure (FYM) on potassium (K) balance and release properties in rice-wheat cropping sequence on Aquic Natrustalfs. The treatments consisted of control, 10…
%&'(W -~!"t,#$%&'()*.+ ,-./0'U12345 $%&bcde_ !( ) # *67,89":;(%&*+,<=")I >st-./0
During the process of quickly producing pathologic sections of the living tissues with ultrasonic sonoporation, it has been found that the exciting ultrasonic signal has an evident effect on the pathologic section. For the sake of understanding the effect and obtaining the best state of quickly producing pathologic se…