钙铁硅铁磁体微晶玻璃热处理气氛的研究

摘要

The phase composition and properties of calcium iron silicate glass-ceramics containing minor B2O3 and P2O5, heat-treated in different atmosphere, were investigated with DTA, XRD, VSM and mossbauer spectrum. The results showed that hematite was its main crystalline of the calcium iron silicate heat-treated in oxidation atmosphere.Only if it was heat-treated in reduction atmosphere could the ferromagnetic glass-ceramic, whose main crystalline was magnetite,be prepared.%使用XRD、DTA、VSM和穆斯堡尔谱等分析测试手段，对在不同气氛下晶化热处理的含少量的B2O3、P2O5钙铁硅微晶玻璃的晶相结构和性质进行了比较深入的研究。研究结果表明，在氧化性气氛下热处理的钙铁硅微晶玻璃以赤铁矿为主；必须在还原性气氛下热处理才能得到以磁铁矿为主要晶相的铁磁体微晶玻璃。