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Metal whiskers form in the presence of compressive stress. Germanium , zinc , cadmium , and even lead whiskers have been documented. [ 1 ] Many techniques are used to mitigate the problem, including changes to the annealing process (heating and cooling), the addition of elements like copper and nickel, and the inclusion of conformal coatings ...
Whiskers are used in some composites, but large-scale fabrication of defect-free whiskers is very difficult. Prior to the discovery of carbon nanotubes , single-crystal whiskers had the highest tensile strength of any materials known, and were featured regularly in science fiction as materials for fabrication of space elevators , arcologies ...
Schematic of field desorption ionization with emitter at left and mass spectrometer at right. Field desorption (FD) is a method of ion formation used in mass spectrometry (MS) in which a high-potential electric field is applied to an emitter with a sharp surface, such as a razor blade, or more commonly, a filament from which tiny "whiskers" have formed.
Fullerene whiskers and tubes are held together by weak van der Waals forces, and hence are very soft. [1] They can be grown by precipitation at an interface between two liquids. They are semiconductors and have potential uses in field-effect transistors , solar cells , chemical sensors, and photocatalysts .
The mechanisms for catalyst-free growth of nanowires (or whiskers) were known from 1950s. [18] The simplest methods to obtain metal oxide nanowires use ordinary heating of the metals, e.g. metal wire heated with battery, by Joule heating in air [19] can be easily done at home.
In the study cited, a laparoscopic camera positioned inside the engine confirmed that 100% TPS corresponded with the physical full-opening of the throttle. A review of the logs did not show any abnormalities. A road test with the same conditions resulted in a sudden uncommanded acceleration 4 hours into the study. [22]
Redrawn version of 1831 sketch of a gold fiveling by Rose, [6] which is a Marks Decahedron [7] [8] with . Dating back to the nineteenth century there are reports of these particles by authors such as Jacques-Louis Bournon in 1813 for marcasite, [9] [10] and Gustav Rose in 1831 for gold. [6]
Whisker (metallurgy), a strong hair-shaped protrusion on a metal's surface; Whisker, in statistics an element of a box plot; Whisker, a project of the Cult of the Dead Cow which checked for security vulnerabilities in web servers "Whiskers", slang for human facial hair on the chin or cheeks; Lake Whisker, a lake of Wisconsin