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在X射线结构分析照相法中,当要求小的几何宽度以提高测量精确度时,应尽可能采用小直径(0.2～0.5mm)的试样。我们结合工作,特制了一种用以填塞粉末试样的醋酸纤维管胶套,现将制作方法介绍如下,以供参考。(1)将1～1.5份的醋酸纤维溶于8.5～9份的丙酮溶液中,用玻璃棒轻搅几分钟,静置后待用。(2)用厚度为0.2mm左右的铝箔一小张(约40×60mm~2),卷成60°左右的漏斗,如图1所示。再用与要求的试样直径大小相同的铜(或其他金属)丝,插入卷锥孔中卷紧。用另一粗铜丝(0.5mm)横扣在锥底上作横挂试样套模丝用,将细铜丝另一端绕挂其上,如图2所示。
In X-ray structural analysis photography, when small geometric widths are required to improve the measurement accuracy, specimens of small diameter (0.2 to 0.5 mm) should be used wherever possible. We work together to make a special acetate tube for filling powder samples. The production methods are described below for reference. (1) 1 to 1.5 parts of cellulose acetate dissolved in 8.5 to 9 parts of acetone solution, with a glass rod lightly stirred for a few minutes, stand aside for later use. (2) A small piece of aluminum foil (about 40 × 60 mm 2) with a thickness of about 0.2 mm is wound into a hopper of about 60 ° as shown in FIG. 1. Re-use the required sample diameter of the same size of copper (or other metal) wire, into the cone hole roll tight. With another thick copper wire (0.5mm) cross-buckle on the bottom of the cone for cross-specimen sample mold wire, the other end of the thin copper wire hanging around it, as shown in Figure 2.