microfissure

microfissure

[¦mī·krō′fish·ər]
(metallurgy)
A crack of microscopic dimensions. Also known as microcrack.
References in periodicals archive ?
We still get some microfissure cracks, but well within the weld area--not way outside the fusion zone.
HPV infects the actively dividing squamous cells of the basal layer when introduced through microfissures of the skin, or in naturally accessible areas like the cervical or anal transformation zones.
They stop microfissures, thereby preventing the formation of fracture points.
The internal stress of these repeated expansions and contractions results in microfissures within the stone which serve as channels for water migration and its corrosive effects," wrote A.
In conifers, impact brittleness is attributed to anatomical factors characteristic of earlywood; in fact, when wood is subjected to impact, it undergoes a local deformation at the point of contact, giving rise to microfissures which do not propagate easily due to the differences in the nature of its anatomical elements.
Since then, various anatomic studies have been performed on temporal bones, and theories have arisen about the significance of microfissures in the otic capsule in the area of the oval window, the round window niche, and the posterior canal ampulla.
The ChronoFlex[R] family of medical-grade segmented polyurethane elastomers has been developed specifically to overcome biologically induced microfissures in the material, which often led to catastrophic failure in long-term implanted devices such as pacemaker leads.
Wear in metal surfaces relates to some extent to the movement of microfissures around in the metal.
This coating increases the durability of these devices, protecting them from the chip-outs and microfissures that can occur when the devices are placed on the PCB during the manufacturing process.
Potential sites of gas entry include the oval and round window niche, microfissures between the posterior semicircular canal and the round window, and the fissula ante fenestram.
The OptiGuard(TM) backside coating enhances the durability of the company's CSP products, providing additional protection against chipouts and microfissures that can occur as a result of handling during the manufacturing process.
Milpitas, California, August 25 /PRNewswire/ -- - Backside coating provides enhanced protection against die chipouts and microfissures