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Journals

Noise averaging and measurement resolution (or a "little noise is a good thing")

January 1, 1999

Author(s)

James E. Potzick

When a continuous quantity is measured with a digital instrument or digitized for further processing, a measurement uncertainty component is incurred from...

Radiationless Resonant Raman Scattering at the Ar K Edge

January 1, 1999

Author(s)

Thomas W. LeBrun, S H. Southworth, G B. Armen, M A. MacDonald, Y Azuma

Partial cross sections for Ar K-LZL3(1 D2)np, n=4 and 5 spectator Auger states excited by x-ray absorption across the K-edge were measured and compared with...

Algorithms for Calculating Single-Atom Step Heights

January 1, 1999

Author(s)

Joseph Fu, V W. Tsai, R Koning, Ronald G. Dixson, Theodore V. Vorburger

Recently, measuring Si(111) single atomic steps prompted us to investigate the measuring technique. The section technique is the most popular method for...

AlInP benchmarks for growth of AlGaInP compounds by organometallic vapor-phase epitaxy

January 1, 1999

Author(s)

Kristine A. Bertness, S. R. Kurtz, S. E. Asher, R. C. Reedy

We have demonstrated that source material and growth system purity can be successfully evaluated by characterizing AllnP samples grown by organometallic vapor...

Keeping Analytical Tools in Line with NTRS Goals: An Industry Challenge

January 1, 1999

Author(s)

Thomas J. Shaffner

As we enter the gigabit dynamic random access memory (DRAM) era, stringent demands for higher performance materials characterization are prematurely pushing...

Viewpoint: Roadmaps for Compound Semiconductors: Knowledge-based Investments for Next Century

January 1, 1999

Author(s)

Herbert S. Bennett

Imagine a world without desk-top laser printers or laser fax machines, without cellular telephones or pagers or global positioning, without compact disk (CD)...

Evaluation of Variance in Zeta Potential Measurements

January 1, 1999

Author(s)

M Chapman-Wilbert, S Delagah, J J. Pellegrino

We evaluated sources of varience in the measurement of the surface zeta potential of flat sheet specimens of cellulose di/triacetate membranes with a commercial...

On the International Temperature Scale of 1990 (ITS-90), Part II: Recommended Techniques for Comparisons, at the Highest Level of Accuracy, of Fixed-Point Cells Used for Contact Thermometry

January 1, 1999

Author(s)

Billy W. Mangum, P Bloembergen, M V. Chattle, B Fellmuth, P Marcarino, A I. Pokhodun

Techniques are recommended for comparisons, at the highest levels of accuracy, of fixed-point cells of the defining fixed points, excluding the vapour-pressure...

Domain Structure and Interphase Dimensions in Poly(Urethaneurea) Elastomers Using DSC and SAXS

January 1, 1999

Author(s)

S G. Musselman, T M. Santosusso, J D. Barnes, L H. Sperling

Small-angle x-ray scattering (SAXS) and differential scattering calorimetry (DSC) were used to demonstrate distinct differences in domain size, phase separation...

Small-Angle Neutron Scattering of Solutions of Arborescent Graft Polystyrenes

January 1, 1999

Author(s)

S M. Choi, R M. Briber, Barry J. Bauer, A Topp, M Gauthier, L Tichagwa

Network Structure of Bimodal Epoxies - a Small Angle X-Ray Scattering Study

January 1, 1999

Author(s)

N C. BeckTan, Barry J. Bauer, J Plestil, J D. Barnes, Da-Wei Liu, L Matejka, K Dusek, Wen-Li Wu

Optical Monitoring of Polypropylene Injection Molding

January 1, 1999

Author(s)

C L. Thomas, Anthony J. Bur

We have constructed an optical fiber sensor for monitoring injection molding and we have developed a model to describe sensor behavior. The sensor consists of a...

Domain Structure and Interphase Dimensions in Poly(Urethaneurea) Elastomers Using DSCand SAXS

January 1, 1999

Author(s)

S G. Musselman, T M. Santosusso, J D. Barnes, L H. Sperling

Magneto-Optical Measurements of Co-Pt (111) Multilayers

January 1, 1999

Author(s)

R A. Fry, Lawrence H. Bennett, Edward Della Torre, Robert D. Shull, William F. Egelhoff Jr., R F. Farrow, C H. Lee

An automated magneto-optical Kerr effect (MOKE) magnetometer was used to measure the polar Kerr rotation and ellipticity loops of multilayers with X = 0.3 nm to...

Production of Aluminum Alloy Based Metal Matrix Composites by the Press and Sinter Route

January 1, 1999

Author(s)

G T. Campbell, Richard J. Fields, J L. Fink

Theory and experience have shown that it is difficult to compress to high densities mixtures of hard particles such as SiC and as-atomized high strength...

A Comparison of Different Micromagnetic Solvers

January 1, 1999

Author(s)

L L. Diaz, J G. Eicke, Edward Della Torre

Micromagnetic equations have characteristics that differ from electromagnetic field problems. Under certain conditions, EM solvers are not very efficient. This...

Magnetic Reversal on Vicinal Surfaces

January 1, 1999

Author(s)

R Hyman, A Zangwill, Mark D. Stiles

We present a theoretical study of in-plane magnetization reversal for vicinal ultrathin films using a one-dimensional micromagnetic model with nearest-neighbor...

Exchange Bias Relaxation in CoO-Biased Films

January 1, 1999

Author(s)

Robert McMichael, C Lee, Mark D. Stiles, F Serpa, P J. Chen, William F. Egelhoff Jr.

Because the memory of the bias direction is carried by the antiferromagnetic order in exchange biased films, the stability of the antiferromagnetic order is...