Another problem that can arise with precision ceramics is that they can be very brittle due to their low ductility. This means that the impact resistance of precision ceramics is very poor. This property is caused by the unique atomic bonds of precision ceramics. Metals have relatively low "metallic" bonds, but they can bond to atoms in any direction. This ability to have many multi-directional keys gives the metal ductility, toughness, and relative strength. Ceramics obviously do not have metal bonds, but ionic and covalent bonds – these bonds are very strong, but they can only bond in very specific directions. This highly organized bonding structure means that the atomic structure is difficult to move, leaving the ceramic malleable.
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