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- W4308458037 abstract "•Self-healing features are realized in mechanically robust heterophasic metals •The structural similarity in metals and bio-tissues is the key for the healing •The self-healing of the metals can be precisely controlled through phase diagrams •Artificial bone-tissue system and robotic arms are successfully constructed Self-healing materials have been in a notorious dilemma for decades to make a challenging balance between high mechanical robustness and self-healing ability. For example, high-molecular-weight polymers or crystalline inorganics are generally high-moduli materials, but they lose the capability to self-heal because of the slow diffusion to unite damaged interfaces. This work, inspired by biological self-healing, successfully realizes self-repairing (healing efficiency > 99%) in mechanically robust materials (E > 5 GPa) near physiological temperature. The high structural similarity between heterophasic metals and biological tissues is the key to realizing the biological ETR (emulsion exudation, nutrition transportation, tissue regeneration) self-healing in metallic materials. Importantly, the mechanical performance and self-healing behavior of ETR self-healable metals (ETR-M) can be precisely controlled through temperature and compositions via metal phase diagrams. An artificial bone-tissue system is well assembled from the ETR-M and self-healable polyurethane with distinguished features of bionic structure, effective self-healing, and high modulus. Self-healing materials have been in a notorious dilemma for decades to make a challenging balance between high mechanical robustness and self-healing ability. For example, high-molecular-weight polymers or crystalline inorganics are generally high-moduli materials, but they lose the capability to self-heal because of the slow diffusion to unite damaged interfaces. This work, inspired by biological self-healing, successfully realizes self-repairing (healing efficiency > 99%) in mechanically robust materials (E > 5 GPa) near physiological temperature. The high structural similarity between heterophasic metals and biological tissues is the key to realizing the biological ETR (emulsion exudation, nutrition transportation, tissue regeneration) self-healing in metallic materials. Importantly, the mechanical performance and self-healing behavior of ETR self-healable metals (ETR-M) can be precisely controlled through temperature and compositions via metal phase diagrams. An artificial bone-tissue system is well assembled from the ETR-M and self-healable polyurethane with distinguished features of bionic structure, effective self-healing, and high modulus." @default.
- W4308458037 created "2022-11-12" @default.
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- W4308458037 date "2023-01-01" @default.
- W4308458037 modified "2023-10-05" @default.
- W4308458037 title "Biological self-healing strategies from mechanically robust heterophasic liquid metals" @default.
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- W4308458037 doi "https://doi.org/10.1016/j.matt.2022.10.012" @default.
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