Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Ronald S. Goeke"'
Autor:
Gongshin Qi, Andrew DeLaRiva, Se H. Oh, Michael N. Spilde, Deepak Kunwar, Eric J. Peterson, Sivakumar R. Challa, Michelle H. Wiebenga, Haifeng Xiong, Cristihan Carrillo, Ronald S. Goeke, Abhaya K. Datye
Publikováno v:
Applied Catalysis B: Environmental. 218:581-590
Pt is an active component in diesel oxidation catalysts (DOCs) but it ripens to form large particles at elevated temperatures due to significant vapor phase transport of PtO2. Adding Pd improves the durability of the catalyst but there is no clear co
Autor:
Khalid Hattar, Ronald S. Goeke, Caitlin A. Taylor, Paul G. Kotula, Yongqiang Wang, Eric Lang, Clark Sheldon Snow
Publikováno v:
Materials
Materials, Vol 14, Iss 5393, p 5393 (2021)
Volume 14
Issue 18
Materials, Vol 14, Iss 5393, p 5393 (2021)
Volume 14
Issue 18
Helium is insoluble in most metals and precipitates out to form nanoscale bubbles when the concentration is greater than 1 at.%, which can alter the material properties. Introducing controlled defects such as multilayer interfaces may offer some leve
Autor:
Somuri V. Prasad, Paul G. Kotula, Ronald S. Goeke, Thomas W. Scharf, Jon-Erik Mogonye, Nicolas Argibay
Publikováno v:
Wear. :1662-1672
Nanocomposite Au-ZnO thin films in the dilute oxide ( −5 mm 3 /N m than for a typical Ni hardened, electroplated Au film at 1.3×10 −4 mm 3 /N m. Cross-sectional transmission electron microscopy studies inside the wear surfaces revealed that the
Autor:
Joshua J. Leckbee, Ronald S. Goeke, M. E. Sceiford, K. J. Dezetter, O. Johns, K. R. Coombes, D. S. Nielsen, Philip R. Miller, Sean Simpson
Publikováno v:
2019 IEEE Pulsed Power & Plasma Science (PPPS).
Next generation pulsed power (NGPP) machines and accelerators require a better understanding of the materials used within the vacuum vessels to achieve lower base pressures (P << 10−5 Torr) and reduce the overall contaminant inventory while incorpo
Publikováno v:
Acta Materialia. 91:1-9
The mechanical properties, thermal stability, and electrical performance of Au–ZnO composite thin films are determined in this work. The co-deposition of ZnO with Au via physical vapor deposition leads to grain refinement over that of pure Au; the
Autor:
Michael P. Balogh, Tyne R. Johns, J.W. Niemantsverdriet, Chang H. Kim, Boris Kiefer, Ronald S. Goeke, Abhaya K. Datye, Peter C. Thüne, Valerie Ashbacher
Publikováno v:
Journal of Catalysis, 328, 151-164. Academic Press Inc.
Sintering of nanoparticles is an important contributor to loss of activity in heterogeneous catalysts, such as those used for controlling harmful emissions from automobiles. But mechanistic details, such as the rates of atom emission or the nature of
Autor:
Rachel L. Schoeppner, David F. Bahr, Neville R. Moody, Somuri V. Prasad, Helena Jin, Ronald S. Goeke
Publikováno v:
Journal of Materials Science. 49:6039-6047
Electrical contact switches require low contact resistance for efficient passage of signals, while withstanding repetitive cycling. Hard gold with alloy additions of Ni, Co, or Ag can increase the wear resistance of Au films, however, this causes a s
Publikováno v:
ACS Applied Materials & Interfaces. 5:11762-11767
The synthesis of Au-MoS2 nanocomposite thin films and the evolution of their structures during film growth, in situ transmission electron microscopy (TEM) heating, and sliding contact were investigated. TEM revealed that the films deposited at ambien