An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Non-adhesive and water-repellent surfaces are required for many tribological applications. Wetting of patterned superhydrophobic Si surfaces is studied as a...
A model for size-, load-, and velocity-dependence of friction at micro/nanoscale is proposed. During multiple-asperity contact, friction force is equal to the...
Winnie Wong-Ng, Lawrence P. Cook, F Jiang, L Swartzendruber, P Sastry
The subsolidus phase equilibria involving the Bi-2223(Bi 2Sr 1.9Ca 2.1Cu 3O 10+x) phase in the Bi-Sr-Ca-Cu-O system (BSCCO) were investigated at 840-850The...
Secondary creep in tension was characterized by power-law functions of stress that were evaluated from load-point displacement on four-point flexure specimens...
The materials community in both science and industry use crystallographic data models on a daily basis to visualize, explain, and predict the behavior of...
S C. Glotzer, Y Gebremichael, N Lacevic, T B. Schroder, Francis W. Starr
We describe the application of statistical mechanical framework, originally developed to describe critical phenonema, to the problem of dynamic criticality...
The study of adhesion, friction, and lubrication at the nanoscale is driven by the needs in niicrosystems, MEMS, and small scale devices. Reliabilitydurability...
Comparisons of two technical approaches for stress measurement based on the peak shifts associated with micro-Raman spectra are described. Stress values were...
The 1999 Material Research Society Fall Meeting took place in Boston Copley Plaza from November 26 to December 3. This was the first time that MRS has used the...
Bench tests have been used to screen lubricants and additives for industrial fluids in machinery applications for a very long time. As technology becomes more...
L Yin, L K. Ives, S Jahanmir, E D. Rekow, E Romberg
The abrasive machining characteristics of a glass-infiltrated dry-pressed alumina used for fabrication of all-ceramic dental crowns are investigated using a...
Interface wear behavior and its effects on frictional sliding shear resistance in fiber-reinforced ceramics was studied using a SiC fiber (SCS-6) - Al 20 3...
The friction of carbon has been of much interest in recent years due to its good tribological properties. These properties include high wear resistance, high...
D M. Saylor, J Fridy, B S. El-Dasher, K Y. Jung, Anthony D. Rollett
Techniques are described that have been used to create a statistically representative three-dimensional model microstructure for input into computer simulations...
Stress measurements in the thermally grown oxide layer of thermal barrier coatings are presented. Stresses were determined from photoluminescence measurements...
Particulate composites, such as liquid-phase sintered silicon nitride and reaction-bonded silicon carbide, are being considered for use in applications where...
Paramagnetic defects in diamond powders were examined by x-band electron paramagnetic resonance (EPR) for dangling bonds and unpaired electrons at 9.62 GHz...
Boundary migration of ZnO has been investigated using single crystals with defined crystallographic orientations. The migration rate of the basal C planes...
This compilation is the first volume in the Phase Equilibria Diagram series focused on a single element, zirconium. The volume combines over 400 new results...
ramic thermal barrier coatings (TBC) can exhibit premature in-service failure due to spallation as a consequence of exposure to elevated temperatures...
This compilation is the first volume in the Phase Equilibria Diagram series focused on a selected group of oxides, TiO2, Nb2O5, and Ta2O5, selected for their...
Since the 1980s, the pace of technology innovations has accelerated exponentially. The advent of high efficiency yet environmental friendly diesel engine...
We use the equations for steady-state diffusion-induced grain boundary motion (DIGM), derived from our phase-field model, [17] to predict the grain boundary...
The International Joint Conference on the Application of Ferroelectrics (IFFF 2003) united the 13th IEEE International Symposium on the Application of...
A Method is described for reconstructing the crystal habit from the observations of many random planar sections of known orientation. We have generated...
This paper reviews lifetime prediction methodologies for high-temperature structural ceramics. The methodologies consider failure from subcritical crack growth...
The method of determining the surface roughness of a transparent solid interface by fitting spectrophotometric transmittance and/or reflectance data with a...
N D. Leifer, A Colon, K Martocci, S G. Greenbaum, Faisal Alamgir, T B. Reddy, N R. Gleason, R A. Leising, E S. Takeuchi
Structural studies have been carried out on Ag2V4O11 (silver vanadium oxide, SVO) and LixAg2V4O11, lithiated SVO with x = 0.72, 2.13 and 5.59 using Nuclear...
Julia Slutsker, V Talanov, I Smolyaninov, Igor Levin, A R. Schwartz, Alexander L. Roytburd
The response of self-assembled CoFe2O4-PbTiO3 multiferroic nanostructures to an external microwave field was analyzed using a near-field scanning microwave...
Grady S. White, Stephen W. Freiman, Lin-Sien H. Lum
A simple expression is derived relating fracture surface energy to easily measured material properties, i.e., the elastic Young's modulus and the equilibrium...