Barium borosilicate (BBS) glass was added as a sintering aid to (Ba_0.7Ca_0.3)TiO₃-Ba(Ti_0.8Zr_0.2)O₃ (BCZT) ceramics at levels from 2 to 15 wt%, yielding enhanced densification. The addition of BBS also induced changes in phase composition, from predominantly tetragonal to orthorhombic at room temperature. It is shown that the changes in phase content are caused by a shift of the orthorhombic to tetragonal phase transformation from below room temperature to ≈50 °C. An additional high temperature transition around 120 °C was also identified. These observations are interpreted in terms of the development of chemical heterogeneity associated with the redistribution of dopant elements (particularly Zr and Ca) through the liquid phase during sintering. The relative permittivity and electric field-induced polarisation values were generally degraded by the presence of the glass phase, but a reduction in ferroelectric hysteresis and improved densification behaviour have potential benefits in dielectric energy storage applications.

将硼硅酸钡（BBS）玻璃作为烧结助剂添加到（Ba _0.7 Ca _0.3）TiO ₃ -Ba（Ti _0.8 Zr _0.2）O _3中（BCZT）陶瓷的含量为2至15重量％，从而提高了致密性。在室温下，加入BBS也会引起相组成的变化，从主要是四方晶系到正交晶系。结果表明，相含量的变化是由正交晶向四方相转变从室温以下转变为≈50°C引起的。还确定了在120°C附近的另一个高温转变。这些观察结果是根据在烧结过程中与液相中掺杂元素（特别是Zr和Ca）的重新分布有关的化学异质性的发展来解释的。玻璃相的存在通常会降低相对介电常数和电场感应的极化值，