超塑性是指某些材料在加热时可将自身的长度拉伸几倍左右.在地球地幔中的矿石一般是不能忍受这样的拉伸长度,但最近日本Tokyo大学的Takebiko Hiraga教授和日本国家新材料研究所的Hidehiro Yoshida教授所领导的研究组已找到了直接的证据,证明地幔矿石都应是超塑性的.它们的特性与其他真实的或预期的可塑性材料一样是一种多晶聚集结 Superplasticity means that some materials can stretch their own length several times when heated, and the ore in the Earth’s mantle generally can not tolerate such a stretching length, but recently Professor Takebiko Hiraga from Tokyo University in Japan and Japanese national new The team led by Professor Hidehiro Yoshida of the Materials Research Institute has found direct evidence that the mantle ores should be superplastic. Their properties are the same as those of other real or expected malleable materials