A new compound Sr6Sn2Nb8O30 was found in th e tary system of SrO-SnO2-Nb2O5.The transparent colorless crystal wit h n eedle-like shape can be grown by flux meth
The corrosion resistance of rebar in fly ash-lime sili cate concrete as well as its marco properties and pore distribution is investiga ted.The results show tha
Microwave joining is a rapid developmental new techniqu e in recent years.This paper introduces a new microwave joining equipment which was made by our lab,succ