A team of researchers has demonstrated that cracks induced in composites consisting of alumina ceramics and titanium could be healed at room temperature, a world-first. This ceramic healing method permits crack-healing even in a state in which a device is mounted on a ceramic package at a low cost and without using complicated heat treatment processes that require significant amounts of energy.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2019/02/190212092601.htm
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