Topic
Blisters
About: Blisters is a research topic. Over the lifetime, 980 publications have been published within this topic receiving 16229 citations.
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TL;DR: In this paper, it was shown that blisters are formed by crystalline lamellae strongly bended, plastically deformed, and suspended over buried empty cavities, and the volume of protruding blister surface is almost equal to the buried empty volumes, thus suggesting a mechanism for blister formation based on H and He precipitation and migration of silicon atoms toward the surface.
Abstract: Transmission electron microscopy has allowed us to draw the three-dimensional structure of blisters formed after high-temperature annealing of He-H co-implanted silicon by combining the unique capability of site-selective cross sectioning of the focused ion beam with conventional plan view images. It has been shown that blisters are formed by crystalline lamellae strongly bended, plastically deformed, and suspended over buried empty cavities. The volume of the protruding blister surface is almost equal to the buried empty volumes, thus suggesting a mechanism for blister formation based on H and He precipitation and migration of silicon atoms toward the surface.
8 citations
TL;DR: In this article, the effects of surface preparation on the propensity of a material to exfoliate, the thickness of the flakes observed in the 400/sup 0/C implant of electropolished vanadium, and the possibility of a correlation between implant fluence, integrated stress and helium retention are addressed.
8 citations
TL;DR: In this paper, a low-energy ( 1021 m-2s-1) hydrogen plasma exposure was performed on cold-worked powder metallurgy tungsten (PM-W), recrystallized cold-workers and hot-workers.
Abstract: Low-energy ( 1021 m-2s-1) hydrogen plasma exposures were performed on cold-worked powder metallurgy tungsten (PM-W), recrystallized cold-worked PM-W and hot-worked PM-W Large blisters with a diameter of approximately 100–200 µm were observed only on the surface of cold-worked PM-W The blister formation mechanism has not been clarified thus far PM-W has a consisting of 1-µm-thick layers, which is formed by press-roll processing A detailed observation of the cross section of those blisters shows for the first time that the blisters are formed by cleaving the upper layer along the stratified layer These experimental results indicate that the manufacturing process of tungsten material is one of the key factors for blister formation on the tungsten surface
8 citations
TL;DR: In this paper, a mechanism for the formation of vertically elongated blisters in high displacement environments produced by 252 Cf alpha particles and fission fragments has been extended to the case of simple helium ion beams.
8 citations
TL;DR: Results suggest that platelet-activating factor or a similar substance is present in the blister fluid obtained from suffered bullous pemphigoid, which is a precursor metabolite of platelet activating factor.
Abstract: We investigated the presence of a platelet-activating factor-like substance in blister fluid obtained from patients with bullous pemphigoid. Hu-man platelet aggregation activity was present in blister fluids obtained from 4 out of 6 patients with bullous pemphigoid and in blister fluids obtained from 3 cases with contact dermatitis. Platelet aggregation activity of pemphigoid blister fluids was inhibited by pretreatment with lyso-PAF, which is a precursor metabolite of platelet activating factor. The activity of blister fluids obtained from patients suffering from contact dermatitis was not inhibited by precursor. Blister fluids obtained from burn lesions and blisters of normal skin induced in the suction revealed no platelet aggregation activity. These results suggest that platelet-activating factor or a similar substance is present in the blister fluid obtained from suffered bullous pemphigoid.
8 citations