回火金属玻璃小角X射线散射强度的背底校正

孟昭富

doi:10.7498/aps.43.411

摘要

提出校正回火金属玻璃（非晶合金）小角ｘ射线散射强度的背底误差的方法：将淬火态非晶合金的小角Ｘ射线散射强度作为在相同的实验条件下得到的回火非晶合金小角Ｘ射线散射强度的背底而予以扣除。并将这样扣除背底和用通常方法扣除背底得到的结果相比较，由前者得到的散射强度遵从Ｐｏｒｏｄ律，并进而得到Ｐｏｒｏｄ常数Ｋp＝４．６×１０-2（ｎｍ-3），积分不变量Qs＝１．６３（ｎｍ-2），比内表面Ｓp＝８４ｍ2／ｃｍ3，Ｐｏｒｏｄ半径Ｒp＝４．４ｎｍ用通常方法扣除背底后的散射强度不满足Ｐｏｒｏｄ规律。

Abstract

A new method of background correction of SAXS intensities scattered by the aged metallic glass is proposed. The intensities scattered by the as-quenched sample were taken as the background scattering. This mothod was applied to the background correction of the SAXS intensities scattered by Cu 73Sn6Ni6P15 metallic glass aged at 473 K for 4hs. Porod constant Ｋ′p＝４．６×１０-2（ｎｍ-3）,Qs＝１．６３（ｎｍ-2）, specific inner surface Ｓp＝８４ｍ2／ｃｍ3, and Porod's radius of the crystalline particle Ｒp＝４．４ｎｍ were obtained by using this method of backgroud correction.

作者及机构信息

孟昭富

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