高频感应燃烧-红外吸收光谱法测定高铍铍铝合金中碳的含量  

Determination of Carbon in High Beryllium Beryllium-Alminium Alloy by High Frequency Induction Combustion-Infrared Absorption Spectrometry

作　　者：刘军 孙洪涛 LIU Jun;SUN Hongtao(State Key Laboratory of Special Rare Metal Materials,Northwest Rare Metal Materials Research Institute Ningxia Co.,Ltd.,Shizuishan 753000,China)

机构地区：[1]西北稀有金属材料研究院宁夏有限公司,稀有金属特种材料国家重点实验室,石嘴山753000

出　　处：《理化检验（化学分册）》2022年第12期1457-1460,共4页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

基　　金：宁夏回族自治区2020年产业创新揭榜项目(20200108)。

摘　　要：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0.00069%。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(wBe,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 0.00069%.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%.

关 键 词：高频感应燃烧 红外吸收光谱法 高铍铍铝合金 碳 

分 类 号：O657.33[理学—分析化学]