高铍铍铝合金(铍质量分数为60%~65%)中的碳含量直接影响合金的力学性能,因此进行了题示研究。将高铍铍铝合金样品0.10~0.20 g置于预先盛有0.3 g纯铁助熔剂的陶瓷坩埚中,覆盖上2.0 g钨锡助熔剂,采用高频感应燃烧-红外吸收光谱法测定其中碳的含量。结果表明,方法的检出限(3s)为0.000 69%。对不同碳含量的高铍铍铝合金样品分别测定11次,测定值的相对标准偏差(RSD)为2.4%~6.0%。

The content of carbon in high beryllium beryllium-alminium alloy (w_Be, 60%-65%) directly influenced on the mechanical properties of alloy, so the research as shown in the title was studied. 0.10-0.20 g of the high beryllium beryllium-alminium alloy sample was placed into a ceramic crucible prefilled with 0.3 g of iron flux, and then covered with 2.0 g tungsten-tin flux. Carbon in the sample was determined by high frequency induction combustion-infrared absorption spectrometry. It was shown that detection limit (3s) of this method was 0.000 69%. The high beryllium beryllium-alminium alloy samples with different contents of carbon were determined 11 times, with RSDs of the determined values in the range of 2.4%-6.0%.