1. The IR spectra of hydrogel, alcogel and aerogel of BaFe12O19 were studied.
对钡铁氧体的水凝胶、醇凝胶以及气凝胶的红外光谱进行了研究。
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2. 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.
3. 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.
