This work was supported by the National Natural Science Foundation of China(52077118);Guangdong Basic and Applied Basic Research Foundation(2021A1515011778);Key Laboratory of Engineering Dielectrics and Its Application(Harbin University of Science and Technology),Ministry of Education(KFM202204).
For the first time,the flash sintering(FS)of high-purity alumina at room temperature,which was previously considered unachievable due to its low electrical conductivity,was conducted herein.The electrical arc originat...