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在定量相分析中常常使用α-Al_2O_3作为内标标样,或利用它来测量其它相的k值。在当待测相与α-Al_2O_3的最强线重迭或部分重迭时,有时不得不使用α-Al_2O_3的其他衍射线或待测柜的非最强线。可是,JCPDS卡片所列出的强度比一般是峰值强度,它对试样中该相的颗粒度和物理状态,以及测试条件是敏感的。即使对于纯相试样,相对峰值强度(相对于它的最强线)也因来源,制备方法和测试条件的不同而产生变化,这样求得的k值也就不同。本文测量了α-Al_2O_3标样CSC各衍射线的相对积分强度和相对峰值强度,并与
Alpha-Al 2 O 3 is often used as an internal standard in quantitative phase analysis, or it can be used to measure the k-values of other phases. When the test phase overlaps with or partially overlaps with the strongest line of α-Al 2 O 3, other diffraction lines of α-Al 2 O 3 or the non-strongest line of the cabinet to be measured may sometimes be used. However, JCPDS cards are listed for intensity ratios that are typically peak intensities that are sensitive to the particle size and physical state of the phase in the sample, as well as the test conditions. Even for pure-phase samples, the relative peak intensity (relative to its strongest line) varies depending on the source, preparation method, and test conditions, and the value of k is also different. In this paper, the relative integral intensities and relative peak intensities of each diffraction line of α-Al 2 O 3 standard CSC were measured and compared with