The IR spectra of hydrogel, alcogel and aerogel of BaFe12O19 were studied, and the ones of the powders calcined at different temperatures for different time were also studied.

对钡铁氧体的水凝胶、醇凝胶凝胶的红光谱进行的观察，同时对不同焙烧温度时间所得粉末的红吸收光谱进行考察。