| Abstract
| - Ca1-xSrxTiO3 could be sintered at temperatures as low as 980 °C by adding 1.0 wt % Li2Si2O5 without forming a grain boundary phase. This enhanced sintering is attributed to an intrinsic self-accelerated diffusion owing to the creation of the point defects formed by doping with Li2Si2O5.
- According to both first principle and materials chemistry, an innovative method for fabricatingCa1-xSrxTiO3 ceramics was investigated. Ca1-xSrxTiO3 was sintered at temperatures as low as 980 °C byadding 1.0 wt % Li2Si2O5 without forming a grain boundary phase. It was considered that the sinteringwas promoted by self-accelerated diffusion due to the formation of point defects caused by doping withLi2Si2O5. Consequently, a new concept of nonstoichiometrically activated sintering, which is enhancedby point defects without the help of a grain boundary phase, is systematically studied for the first timein the Ca1-xSrxTiO3−Li2Si2O5 system.
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