A research group from the National Institute for Materials Science (NIMS)-Yokohama National University (YNU) was able to use clues provided by the bone healing process to discover a healing activator for crystalline grain boundaries, which enables ceramics to heal cracks quickly at aircraft engine operating temperatures. The researchers found that self-healing ceramics undergo three healing stages equivalent to the bone healing processes: inflammation, repair, and remodeling. The group was able to use these indications to develop an innovative, heat-resistant ceramic using effective healing activator phases to manipulate the ceramics’ self-healing abilities.
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