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Author: ryna marinenko

Displaying records 11 to 20 of 34 records.
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11. Optical and Structural Studies of Compositional Inhomogeneity in Strain-Relaxed Indium Gallium Nitride Films
Published: 11/1/2001
Authors: Lawrence H Robins, J T. Armstrong, Ryna B. Marinenko, Mark D Vaudin, Charles E. Bouldin, Joseph C Woicik, Albert J. Paul, W. Robert Thurber, K E Miyano, C A Parker
Abstract: The structural and optical properties of indium gallium nitride (InxGa1-xN) films with 0.04 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=850464

12. Evaluation of a Lead Lanthanum Zirconium Titanate (PLZT) Specimen for use as an Electron Microprobe Reference Material
Published: 8/1/2001
Authors: Ryna B. Marinenko, Z Samardzija, S Bernik, M Kosec, M Ceh
Abstract: A Lead lanthanum zirconium titanate (PLZT) spec imen was studiedwith the wavelength dispersive electron probe microanalysis (EPMA) todetermine the composition and the extent of microheterogeneity of thematerial. Quantitative analysis of the specimen ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831223

13. Dye Impregnation Method for Revealing Machining Crack Geometry
Published: 4/1/2001
Authors: M Kanematsu, M. Sando, Lewis K. Ives, Ryna B. Marinenko, George David Quinn
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905251

14. Fabrication and Electron Microprobe Characterization of Barium-Strontium-Titanate (BST) Films
Published: 2/1/2001
Authors: Ryna B. Marinenko, J T. Armstrong, Debra L Kaiser, Joseph J. Ritter, Peter K. Schenck, C P. Bouldin, J Blendell, Igor Levin
Abstract: Barium strontium titanate (BST) thin films of varying composition and thickness (5nm to 400nm) on (100)Si or Pt/(100)Si substrates were measured using an electron microprobe analyzer with wavelength dispersive x-ray spectrometers. Most of the films ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831201

15. Optical and Structural Studies of Compositional Inhomogeneity in Strain-Relaxed Indium Gallium Nitride Films
Published: 12/31/2000
Authors: Lawrence H Robins, J T. Armstrong, Ryna B. Marinenko, Mark D Vaudin, Charles E. Bouldin, J C Woicik, Albert J. Paul, W. Robert Thurber
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=14553

16. Preparation and Certification of K-411 Glass Microspheres
Published: 12/1/2000
Authors: Ryna B. Marinenko, S V. Roberson, J S Small, Barbara B. Thorne, Douglas H. Blackburn, D Kauffman, Stefan D Leigh
Abstract: The production and characterization of NBS K-411 glass microspheres in the 3-40 um range for certification as a NIST Standard Reference Material (SRM) are described. EDS quantitative analysis and heterogeneity evaluations of the microspheres were ma ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831165

17. Useful Lead and Bismuth Standards for Quantitative Electron Probe Microanalysis
Published: 8/1/2000
Authors: Ryna B. Marinenko, Eric S Windsor
Abstract: This is a preliminary study of lead and bismuth selinides and tellurides to determine the usefullness of these materials as Pb and Bi standards for quantitative microanalysis. Precautions were taken during sample preparation procedures to reduce the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831168

18. AlGaAs Composition Measurements from In Situ Optical Reflectance
Published: 7/1/2000
Authors: Kristine A Bertness, J T. Armstrong, Ryna B. Marinenko, Lawrence H Robins, Albert J. Paul, Joseph G. Pellegrino, Paul M. Amirtharaj, Deane Chandler-Horowitz
Abstract: We measure the composition of AlGaAs layers during epitaxial crystal growth using in situ normal-incidence optical reflectance supported by independent methods of measuring growth rate. The results are compared with conventional ex situ characterizat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=26476

19. Status of Microanalysis Standards at the National Institute of Standards and Technology (NIST)
Published: 7/1/2000
Author: Ryna B. Marinenko
Abstract: This is a review of the current status of microanalysis standards at NIST -what is presently available, what will soon be available, and what might be available in the future. Many of the standards issued in the past such as Cartridge Brass (SRM 478) ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831176

20. Dye Impregnation Method for Revealing Machining Crack Geometry
Published: 4/1/2000
Authors: Yasumitsu Matsuo, M. Sando, L K Ives, Ryna B. Marinenko, George David Quinn
Abstract: An observation technique for machining cracks in ceramics has been developed. Palladium (Pd) nitrate water solution was impregnated into a bending specimen using cold isostatic pressing. Following a failure test, crack geometry was determined from a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=850341



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