Magnetism of Nanostructures on Metallic Substrates

2018 ◽  
pp. 201-217
Author(s):  
Michael Potthoff ◽  
Maximilian W. Aulbach ◽  
Matthias Balzer ◽  
Mirek Hänsel ◽  
Matthias Peschke ◽  
...  
Keyword(s):  
Metallic Substrates

Electron microscopy studies of plasma-sprayed materials

1983 ◽  
Vol 41 ◽  
pp. 70-71
Author(s):  
K.R. Subramanian ◽  
A.H. King ◽  
H. Herman
Keyword(s):  
Plasma Spraying ◽  
Substrate Surface ◽  
Flame Temperature ◽  
Ceramic Coatings ◽  
Metallic Substrates ◽  
Hot Plasma ◽  
Almost All ◽  
Plasma Sprayed ◽  
Hostile Environments ◽  
Plasma Spraying Process

Plasma spraying is a technique which is used to apply coatings to metallic substrates for a variety of purposes, including hardfacing, corrosion resistance and thermal barrier applications. Almost all of the applications of this somewhat esoteric fabrication technique involve materials in hostile environments and the integrity of the coatings is of paramount importance: the effects of process variables on such properties as adhesive strength, cohesive strength and hardness of the substrate/coating system, however, are poorly understood.Briefly, the plasma spraying process involves forming a hot plasma jet with a maximum flame temperature of approximately 20,000K and a gas velocity of about 40m/s. Into this jet the coating material is injected, in powder form, so it is heated and projected at the substrate surface. Relatively thick metallic or ceramic coatings may be speedily built up using this technique.

Shear Strength and Dsc Analysis of High-Temperature Solders

2013 ◽  
Vol 58 (2) ◽  
pp. 529-533 ◽  
Author(s):  
R. Koleňák ◽  
M. Martinkovič ◽  
M. Koleňáková
Keyword(s):  
Shear Strength ◽  
High Temperature ◽  
Lead Free ◽  
Dsc Analysis ◽  
Ultrasonic Activation ◽  
Metallic Substrates ◽  
Cu Substrate ◽  
Lead Free Solders

The work is devoted to the study of shear strength of soldered joints fabricated by use of high-temperature solders of types Bi-11Ag, Au-20Sn, Sn-5Sb, Zn-4Al, Pb-5Sn, and Pb-10Sn. The shear strength was determined on metallic substrates made of Cu, Ni, and Ag. The strength of joints fabricated by use of flux and that of joints fabricated by use of ultrasonic activation without flux was compared. The obtained results have shown that in case of soldering by use of ultrasound (UT), higher shear strength of soldered joints was achieved with most solders. The highest shear strength by use of UT was achieved with an Au-20Sn joint fabricated on copper, namely up to 195 MPa. The lowest average values were achieved with Pb-based solders (Pb-5Sn and Pb-10Sn). The shear strength values of these solders used on Cu substrate varied from 24 to 27 MPa. DSC analysis was performed to determine the melting interval of lead-free solders.

scholarly journals A critical look at the prediction of the temperature field around a laser-induced melt pool on metallic substrates

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yi Shu ◽  
Daniel Galles ◽  
Ottman A. Tertuliano ◽  
Brandon A. McWilliams ◽  
Nancy Yang ◽  
...  
Keyword(s):  
Laser Beam ◽  
Constant Velocity ◽  
Three Dimensional ◽  
Laser Beams ◽  
Poor Control ◽  
Metallic Substrates ◽  
Melt Pool ◽  
Mechanical Models ◽  
Transport Effects ◽  
Thermal Histories

AbstractThe study of microstructure evolution in additive manufacturing of metals would be aided by knowing the thermal history. Since temperature measurements beneath the surface are difficult, estimates are obtained from computational thermo-mechanical models calibrated against traces left in the sample revealed after etching, such as the trace of the melt pool boundary. Here we examine the question of how reliable thermal histories computed from a model that reproduces the melt pool trace are. To this end, we perform experiments in which one of two different laser beams moves with constant velocity and power over a substrate of 17-4PH SS or Ti-6Al-4V, with low enough power to avoid generating a keyhole. We find that thermal histories appear to be reliably computed provided that (a) the power density distribution of the laser beam over the substrate is well characterized, and (b) convective heat transport effects are accounted for. Poor control of the laser beam leads to potentially multiple three-dimensional melt pool shapes compatible with the melt pool trace, and therefore to multiple potential thermal histories. Ignoring convective effects leads to results that are inconsistent with experiments, even for the mild melt pools here.

Casimir pressure in peptide films on metallic substrates: Change of sign via graphene coating

2021 ◽  
Vol 103 (24) ◽  
Author(s):  
G. L. Klimchitskaya ◽  
V. M. Mostepanenko ◽  
E. N. Velichko
Keyword(s):  
Metallic Substrates ◽  
Graphene Coating

The Influence of Palladium Addition on the Texture Transition in Silver

2005 ◽  
Vol 495-497 ◽  
pp. 1461-1466
Author(s):  
Kazuyoshi Sekine ◽  
Zheng Rong Zhang
Keyword(s):  
Recrystallization Texture ◽  
Room Temperature ◽  
Stable State ◽  
Rolling Texture ◽  
Transition Process ◽  
Superconducting Tapes ◽  
Alloying Element ◽  
Metallic Substrates ◽  
Pd Alloy ◽  
Texture Transition

Texture transition in silver introduced by the addition of 10 at% Pd alloying element was analyzed in this study. Experimental results show that the dependence of rolling texture on rolling reduction in thickness rather than on rolling temperature has been mostly detected, and the recrystallization texture transition process in pure silver is so strongly influenced by the addition of alloying element palladium that the final stable state of recrystallization texture has been changed from Brass {011}<211> orientation to Copper {112}<111> orientation. The single cube {001}<100> recrystallization texture in warm rolled silver, Brass {011}<211> recrystallization texture in room-temperature rolled silver, and Copper {112}<111> recrystallization texture in room-temperature rolled or warm rolled Ag-10 at% Pd alloy have been successfully developed for the fabrication of metallic substrates suitable for high-temperature superconducting tapes.

Evaluation of Zn Doped Hydroxyapatite Plasma Spray Biocompatible Coatings on Metallic Substrates

2017 ◽  
Vol 75 (27) ◽  
pp. 149-155 ◽  
Author(s):  
Seisho Take ◽  
Masataka Kato ◽  
Tomoya Asami ◽  
Yuto Aihara ◽  
Satoru Izawa ◽  
...  
Keyword(s):  
Plasma Spray ◽  
Metallic Substrates ◽  
Biocompatible Coatings

Microwave Surface Resistance of Bi2Sr2CaCu2OxThick Films on Large-Area Metallic Substrates

1997 ◽  
Vol 36 (Part 1, No. 6A) ◽  
pp. 3478-3484 ◽  
Author(s):  
Shigemi Inagaki ◽  
Kiyomitsu Asano ◽  
Eizi Ezura ◽  
Shuetsu Haseyama ◽  
Shigeru Isagawa ◽  
...  
Keyword(s):  
Surface Resistance ◽  
Microwave Surface Resistance ◽  
Large Area ◽  
Metallic Substrates

Epitaxial growth of heterostructures on biaxially textured metallic substrates for YBa2Cu3O7-x tape fabrication

2000 ◽  
Vol 80 (5) ◽  
pp. 979-990 ◽  
Author(s):  
V. Boffa ◽  
C. Annino ◽  
D. Bettinelli ◽  
S. Ceresara ◽  
L. Ciontea ◽  
...  
Keyword(s):  
Epitaxial Growth ◽  
Metallic Substrates

Chemical and physical erosion of carbon and metallic substrates containing lithium during low-energy deuterium ion irradiation

2011 ◽  
Vol 415 (1) ◽  
pp. S133-S136 ◽  
Author(s):  
M. Nieto-Perez ◽  
J.P. Allain ◽  
B. Heim ◽  
C.N. Taylor
Keyword(s):  
Ion Irradiation ◽  
Low Energy ◽  
Metallic Substrates ◽  
Physical Erosion
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