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loveliner

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[求助] [color=Blue][size=3]二氧化钛XRD峰解析 [/size][/color]

请教研究二氧化钛的高手,我用水解法制备的二氧化钛,在60℃下烘干的和在800℃下煅烧3h的样品做XRD衍射,发现二者都只有锐钛型的特征峰,只是煅烧后的峰强度更大。我想请问下高手,800℃下煅烧后的为什么没出现金红石型相的峰?
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