End of the smashed phone screen? self-healing glass discovered by accident

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End of the smashed phone screen? self-healing glass discovered by accident
Japanese researchers say they have developed a new type of glass that can heal itself from cracks and breaks. Glass made from a low weight polymer called “polyetherthioureas” can heal breaks when pressed together by hand without the need for high heat to melt the material. The research, published in Science, by researchers led by Professor Takuzo Aida from the University of Tokyo, promises healable glass that could potentially be used in phone screens and other fragile devices, which they say are an important challenge for sustainable societies. While selfhealing rubber and plastics have already been developed, the researchers said that the new material was the first hard substance of its kind that can be healed at room temperature. “High mechanical robustness and healing ability tend to be mutually exclusive,” wrote the researchers, saying that while some hard but healable materials have been developed, “in most cases, heating to high temperatures, on the order of 120°C or more, to re...
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