Effect of beam size in laser welding of ultra-thin stainless steel foils

2016 ◽  
Vol 233 ◽  
pp. 125-134 ◽  
Author(s):  
Jaehun Kim ◽  
Sanseo Kim ◽  
Keunug Kim ◽  
Wonyeong Jung ◽  
Deokhyun Youn ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Beam Size ◽  
Stainless Steel Foils ◽  
Steel Foils

scholarly journals Understanding Size Effects and Forming Limits in the Micro-Stamping of Industrial Stainless Steel Foils

Metals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 38
Author(s):  
Matthias Weiss ◽  
Peng Zhang ◽  
Michael P. Pereira ◽  
Bernard F. Rolfe ◽  
Daniel E. Wilkosz ◽  
...  
Keyword(s):  
Grain Size ◽  
Stainless Steel ◽  
Size Effects ◽  
Bipolar Plate ◽  
Forming Limits ◽  
Tool Profile ◽  
Steel Processing ◽  
The Individual ◽  
Stainless Steel Foils ◽  
Steel Foils

This study investigates the effect of grain size and composition on the material properties and forming limits of commercially supplied stainless steel foil for bipolar plate manufacture via tensile, stretch forming and micro-stamping trials. It is shown that in commercially supplied stainless steel the grain size can vary significantly and that ‘size effects’ can be influenced by prior steel processing and composition effects. While the forming limits in micro-stamping appear to be directly linked to the plane strain forming limits of the individual stainless steel alloys, there was a clear effect of the tensile anisotropy. In contrast to previous studies, forming severity and the likelihood of material failure did not increase with a decreasing channel profile radius. This was related to inaccuracies of the forming tool profile shape.

Amorphous Silicon TFTs on Steel-Foil Substrates

1996 ◽  
Vol 424 ◽  
Author(s):  
S. D. Theiss ◽  
S. Wagner
Keyword(s):  
Stainless Steel ◽  
Leakage Currents ◽  
Action Current ◽  
Insulating Layer ◽  
Stainless Steel Foil ◽  
Current Voltage ◽  
Stainless Steel Foils ◽  
Steel Foils ◽  
Current Behavior

AbstractWe describe the successful fabrication of device-quality a-Si:H thin-film transistors (TFTs) on stainless-steel foil substrates. These TFTs demonstrate that transistor circuits can be made on a flexible, non-breakable substrate. Such circuits could be used in reflective or emissive displays, and in other applications that require rugged macroelectronic circuits.Two inverted TFT structures have been made, using 200 gim thick stainless steel foils with polished surfaces. In the first structure we used the substrate as the gate and utilized a homemade mask set with very large feature sizes: L = 45 μm; W = 2.5 mm. The second, inverted staggered, structure used a 9500 Å a-SiNx:H passivating/insulating layer deposited on the steel to enable the use of isolated gates. For this structure we used a mask set which is composed of TFTs with much smaller feature sizes. Both TFT structures exhibit transistor action. Current-voltage characterization of the TFTs with the inverted staggered structure shows typical on/off current ratios of 107, leakage currents on the order of 10-12 A, good linear and saturation current behavior, and channel mobilities of 0.5 cm2/V·sec. These characteristics clearly identify the TFTs grown on stainless steel foil as being of device quality.

scholarly journals Diffusion barrier properties of molybdenum back contacts for Cu(In,Ga)Se2solar cells on stainless steel foils

2013 ◽  
Vol 113 (5) ◽  
pp. 054506 ◽  
Author(s):  
P. Blösch ◽  
F. Pianezzi ◽  
A. Chirilă ◽  
P. Rossbach ◽  
S. Nishiwaki ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Diffusion Barrier ◽  
Barrier Properties ◽  
Stainless Steel Foils ◽  
Steel Foils

Investigating sensitivity to process parameters in pulsed laser micro-welding of stainless steel foils

2022 ◽  
Vol 148 ◽  
pp. 107737
Author(s):  
Hamed Sheikhbahaee ◽  
S. Javid Mirahmadi ◽  
Mohammad Reza Pakmanesh ◽  
Saeed Asghari
Keyword(s):  
Stainless Steel ◽  
Process Parameters ◽  
Pulsed Laser ◽  
Stainless Steel Foils ◽  
Steel Foils

scholarly journals X-ray emission from stainless steel foils irradiated by femtosecond petawatt laser pulses

2018 ◽  
Vol 946 ◽  
pp. 012018 ◽  
Author(s):  
M A Alkhimova ◽  
A Ya Faenov ◽  
T A Pikuz ◽  
I Yu Skobelev ◽  
S A Pikuz ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Laser Pulses ◽  
X Ray ◽  
Stainless Steel Foils ◽  
Steel Foils

scholarly journals The Growth of ZnO Nanorods on Stainless-steel foils and Its Application for Piezoelectric Nanogenerator

2018 ◽  
Vol 1093 ◽  
pp. 012004
Author(s):  
Nandang Mufti ◽  
Anggreta Damayanti ◽  
Aripriharta ◽  
Arramel ◽  
Ahmad Taufiq ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Zno Nanorods ◽  
Stainless Steel Foils ◽  
Steel Foils
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