Among different principles which can be utilized in a structure to exhibit anomalously low thermal expansion, a 'distributed' phase transition is a candidate. Pb(Mg 1 3Nb 2 3)3 is a well known relaxor ferroelectric material in which such a transition occurs. The change in thermal expansion of PMN ceramics caused by partially substituting various ions at the B-site has been studied in order to see any new low expansion materials with good electrostriction properties exist. Partial ionic substitution of Ni2+, Co2+, Zn2+, Mn2+, Cd2+, Fe3+, Sc3+, Ti4+, Sn4+, Hf4+, Zr4+, and W6+ was made at B-site. The sintering temperature was kept at 1250° for 1 hour. Thermal expansion data and their interpretations are presented.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering