| 摘要 |
<p>Cpds. of general formula X xLO, yR2O3, Z(TO2.Qo) Y.(TO2.2NO) where X+Y=100, 90 Y 100, 0.96 = x =1.04, 0.01 =z =0.9 and y+z=2-x are prepared by mixing the component oxides, pressing and firing in air or oxygen. L, Q and N are bivalent metals such as Fe2+ Ni2+, Co2+, Mn2+; R is a trivalent metal such as Fe3+, Cr3+; T is a tetravalent metal e.g. Ti4+. More specifically the general formula X 0.96 MgO, 0.18 MnO, 0.8 Fe2O3, 0.1(TiO2.NiO) Y(TiO2.2MgO) where X+Y=100, 90 Y 100. The materials possess low dielectric loss at high frequencies.</p> |
