Blisters

About: Blisters is a research topic. Over the lifetime, 980 publications have been published within this topic receiving 16229 citations.

Initiating, growing and cracking of hydrogen blisters

Abstract: The growing process of a hydrogen blister in a wheel steel was observed in situ with an optical microscope, and the fracture surfaces formed from broken blisters on a wheel steel and bulk metallic glass were investigated. The initiating, growing, cracking and breaking of hydrogen blisters are as follows. Supersaturated vacancies can increase greatly during charging and gather together into a vacancy cluster (small cavity). Hydrogen atoms become hydrogen molecules in the vacancy cluster and hydrogen molecules can stabilize the vacancy cluster. The small cavity becomes the nucleus of hydrogen blister. The blister will grow with entering of vacancies and hydrogen atoms. With increasing hydrogen pressure, plastic deformation occurs first, the hydrogen blister near the surface extrudes, and then cracks initiate along the wall of the blister with further increasing hydrogen pressure. A cracked blister can grow further through propagating of cracks until it breaks.

A Novel Method for Fracture Blister Management Using Circumferential Negative Pressure Wound Therapy with Instillation and Dwell.

Abstract: High- and low-energy fractures can result in nearby skin blistering. These so-called "fracture blisters" can be troublesome in the face of surgery and currently no uniform consensus regarding their management exists. Preoperatively, we used circumferential negative pressure wound therapy with sterile saline instillation (NPWT-id) to treat two patients with closed fractures who had developed significant skin blistering. This technique resulted in near complete re-epithelialization of the decompressed blister beds within one week. Furthermore, no excessive surgical delay or alteration in surgical approach was necessary, and both patients healed successfully without post-operative wound complications. Thus, circumferential NPWT-id may be a worthwhile treatment option for fracture blisters.

Repair of FRP parts

Abstract: Blisters on cured molded thermoset fiberglass reinforced plastic (FRP) parts are repaired by injecting an anaerobic sealant into the blister, pressing the filled blister to reduce the blister to the preblister form while eliminating excess sealant, and heating to cure and set the sealant to hold the blister in its reduced form.