A polysiloxane filled with ß-eucryptite and/or SiC was used for the processing of polymer derived ceramic tapes. The combination of both fillers in varying proportions allowed to tailor the overall bulk thermal expansion and the flexural strength of the resulting composite materials simultaneously. Incorporation of SiC increased noticeably the flexural strength of the samples and influenced the phase changes resulting from the interactions between the β-eucryptite filler and the polymer derived ceramic matrix. Changes in the phase composition and changes of the unit cell parameters of β-eucryptite because of the formation of solid-solutions with silica originating from the SiO₂ constituent of the polymer derived ceramic matrix were observed by Rietveld refinement. Tapes resulting from this process possess a sufficient mechanical stability and their coefficient of thermal expansion can be adjusted from slightly positive to moderate negative values.

填充有β-锂霞石和/或SiC的聚硅氧烷用于处理聚合物衍生的陶瓷带。两种不同比例的填料的组合允许同时调整整体体积热膨胀和所得复合材料的抗弯强度。SiC的掺入显着提高了样品的抗弯强度，并影响了由β-锂霞石填料与聚合物衍生的陶瓷基体之间的相互作用导致的相变。β-锂霞石的相组成变化和晶胞参数的变化，这是由于SiO ₂形成的二氧化硅固溶体的缘故通过Rietveld精炼观察到聚合物衍生的陶瓷基体的组成。通过这种方法制成的胶带具有足够的机械稳定性，并且可以将其热膨胀系数从轻微的正值调整为中等的负值。