Pressure amplification effect of using resorcinol/formaldehyde foam ablators in laser-shock experiments

2021 ◽  
Vol 28 (7) ◽  
pp. 072705
Author(s):  
Kento Katagiri ◽  
Norimasa Ozaki ◽  
Kohei Yamanoi ◽  
Takayoshi Sano ◽  
Ryosuke Kodama
Keyword(s):  
Laser Shock ◽  
Resorcinol Formaldehyde ◽  
Amplification Effect ◽  
Pressure Amplification

A Resorcinol-Formaldehyde Resin as an Embedding Material for Electron Microscopy of Membranes

1969 ◽  
Vol 27 ◽  
pp. 328-329 ◽  
Author(s):  
J. G. Robertson ◽  
D. F. Parsons
Keyword(s):  
Electron Microscopy ◽  
Osmium Tetroxide ◽  
Neutral Lipids ◽  
Lipid Extraction ◽  
Water Soluble ◽  
Formaldehyde Resin ◽  
Electron Microscope Autoradiography ◽  
Resorcinol Formaldehyde ◽  
Major Disadvantage ◽  
Cell Organization

The extraction of lipids from tissues during fixation and embedding for electron microscopy is widely recognized as a source of possible artifact, especially at the membrane level of cell organization. Lipid extraction is also a major disadvantage in electron microscope autoradiography of radioactive lipids, as in studies of the uptake of radioactive fatty acids by intestinal slices. Retention of lipids by fixation with osmium tetroxide is generally limited to glycolipids, phospholipids and highly unsaturated neutral lipids. Saturated neutral lipids and sterols tend to be easily extracted by organic dehydrating reagents prior to embedding. Retention of the more saturated lipids in embedded tissue might be achieved by developing new cross-linking reagents, by the use of highly water soluble embedding materials or by working at very low temperatures.

Liquid spall in laser shock-loaded Tin melted on compression or on release

2006 ◽  
Vol 134 ◽  
pp. 869-875 ◽  
Author(s):  
T. de Rességuier ◽  
L. Signor ◽  
A. Dragon ◽  
M. Boustie ◽  
G. Roy ◽  
...  
Keyword(s):  
Laser Shock

The amplification effect of group-shared emotion

2017 ◽  
Vol 25 (4) ◽  
pp. 662 ◽  
Author(s):  
Zuo-Jun WANG ◽  
Yi-Ru HOU ◽  
Yi KUANG ◽  
Hui-Yi TANG ◽  
Zhen-Zhen ZHAO ◽  
...  
Keyword(s):  
Amplification Effect

Effect of laser shock peening on microstructure and hot corrosion of TC11 alloy

2018 ◽  
Vol 335 ◽  
pp. 32-40 ◽  
Author(s):  
Zhaopeng Tong ◽  
Xudong Ren ◽  
Yunpeng Ren ◽  
Fengze Dai ◽  
Yunxia Ye ◽  
...  
Keyword(s):  
Hot Corrosion ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Shock Peening

scholarly journals Surface Forming Criteria of Ti-6AL-4V Titanium Alloy under Laser Loading

2021 ◽  
Vol 11 (12) ◽  
pp. 5406
Author(s):  
Fei Yin ◽  
Xia Ye ◽  
Hongbing Yao ◽  
Pengyu Wei ◽  
Xumei Wang ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Surface Morphology ◽  
High Speed ◽  
Yttrium Aluminum Garnet ◽  
Laser Energy ◽  
Target Material ◽  
Nanosecond Laser ◽  
Laser Shock ◽  
Shock Condition ◽  
Key Factor

In order to study the spallation phenomenon of titanium alloy under the shock of nanosecond laser, the Neodymium-Yttrium-Aluminum Garnet laser was used to carry out laser shock experiments on the surface of titanium alloy. By observing and measuring the surface morphology of the target material, the forming factors and the changes of the surface morphology under different parameter settings, the forming criteria of the titanium alloy were obtained. The results show that under the single variable method, the change of laser energy can affect the target shape variable, and there is a positive correlation between them. When the thickness was greater than or equal to 0.08 mm, no obvious cracks were found in the targets. Moreover, the number of impact times was the key factor for the target deformation; with the growth of impact times, the target deformation gradually became larger until the crack appeared. The larger the diameter of the spot, the more likely the target was to undergo plastic deformation. The surface of titanium alloy with a thickness of 0.08 mm appeared to rebound under specific laser shock condition. The changes in the back of the target material were observed in real time through a high-speed camera, and the plasma induced by the laser was observed in the process. This study is based on the results of previous studies to obtain the titanium alloy forming criteria, which provides a basis for the setting of laser parameters and the thickness of the target when the nanosecond laser impacts the Ti-6AL-4V target.

Synthesis, Characterization and Photocatalytic Properties of Robust Resorcinol-Formaldehyde Polymer Fine Particles

2021 ◽  
pp. 118240
Author(s):  
Shinya Higashimoto ◽  
Yushi Sasakura ◽  
Ryuki Tokunaga ◽  
Masanari Takahashi ◽  
Hisayoshi Kobayashi ◽  
...  
Keyword(s):  
Fine Particles ◽  
Photocatalytic Properties ◽  
Resorcinol Formaldehyde
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