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X-ray diffraction studies using CuK radiation with Ni filter confirmed the single-phase spinel structure for all the samples. ÉÏÃæÊÇһƪÎÄÏ׸øµÄÕâ¸öµØ·½ÊDz»ÊǸø´íÁË£¨with Ni filter £©£¬Ó¦¸Ã°Ñfilter¸Ä³Éferrite£¿ ÁíÍâÒ»¸öÎÊÌâÊDzâxrdÓв½³¤ÊÇ0.02ºÍ0.05µÄÓÐʲô²»Í¬£¬Ô½ÏêϸԽºÃ£¬Ð»Ð»£¡ |
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lee988325
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kunpeng1782: ½ð±Ò+10, MN-EPI+1, ллÄúµÄ»Ø´ð 2013-07-28 15:52:41
fan_xmz: ½ð±Ò+5, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-07-28 19:01:17
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kunpeng1782: ½ð±Ò+10, MN-EPI+1, ллÄúµÄ»Ø´ð 2013-07-28 15:52:41
fan_xmz: ½ð±Ò+5, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-07-28 19:01:17
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The K-absorption-edge (K-to-continuum threshold) for nickel is at 1.488 Angstrom. As a result, nickel absorbs Cu Kb radiation much more strongly than it absorbs Cu Ka radiation. A Ni foil filter is often used to attenuate Cu Kb radiation, and is included in our tube housing. You will still see double peaks due to Ka1 and Ka2 at least at large scattering angles. http://xrd-cmmp.blogspot.tw/2011 ... ffect-of-steps.html when running continuous scans, the step size needs to be chosen according to the peak FWHM for effective peak position determination-- but keep in mind that step size impacts net intensity. |
5Â¥2013-07-28 15:07:54
refnew
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fan_xmz
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3Â¥2013-07-28 10:15:17
refnew
ר¼Ò¹ËÎÊ (ÖªÃû×÷¼Ò)
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yuan999
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