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Sr-doped Y2Ti2O7 has been synthesized by hot-pressing sintering in the vacuum with graphite die. The thermogravimetric analysis, electrical conductivity, dielectric and microwave absorption properties of Y2-xSrxTi2O7-δ (x = 0.05, 0.1, 0.15, 0.2) investigated. The ε′ of Y1.8Sr0.2Ti2O7-δ is four times larger than the pure Y2Ti2O7 and twice larger than that of Y1.8Ca0.2Ti2O7-δ at 8.2 GHz. The ε’’ of...
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