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Ceramic whiskers
Article By:
Johnsson, Mats Department of Inorganic Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm, Sweden.
Nygren, Mats Department of Inorganic Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm, Sweden.
Last reviewed:2003
DOI:https://doi.org/10.1036/1097-8542.YB031710
Whiskers are elongated single crystals, typically having cross-sectional diameters of 0.1–10 micrometers and lengths of 10–1000 μm. Because they are single crystals, which ideally contain very few dislocations and the same crystallographic orientation throughout, their strength and Young's modulus (stiffness) is expected to be very high; their values do, in fact, approach those predicted from bond strength calculations. Due to their hardness and strength, these whiskers are highly interesting as reinforcing materials in ceramics.
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