Abstract：The tantalum-tungsten alloy sample was pretreated by removing surface dirt with a file followed by rinsing with acetone and natural air drying. Then the sample was added into high purity nickel basket. The detection of oxygen and nitrogen in tantalum-tungsten alloy by inert gas fusion infrared absorption-thermal conductivity method was established. The effects of flux, analytical power and sample mass on the analysis results were discussed. The following experimental conditions were selected: the flux was nickel basket, the analytical power was 5.0 kW, and the sample mass was about 0.10 g. Titanium alloy standard sample GBW(E)020188 was used for calibration, and another zirconium alloy standard sample AR640 was used for verification. The determination results of oxygen and nitrogen in the standard sample were within the range of standard values. Under the optimized conditions, the limits of detection of oxygen and nitrogen were 0.000 13% and 0.000 04%, and the limits of quantification were 0.000 44% and 0.000 13%, respectively. The proposed method was applied for the analysis of tantalum-tungsten alloy. The relative standard deviations (RSD, n=11) of determination results of oxygen and nitrogen were 6.6% and 11.2%, respectively. The recoveries were 93%-102% and 95%-103%, respectively.
柴琴琴, 石新层, 王宽, 王芳, 张哲. 惰气熔融红外/热导法测定钽钨合金中氧和氮[J]. 冶金分析, 2022, 42(4): 69-74.
CHAI Qinqin, SHI Xinceng, WANG Kuan, WANG Fang, ZHANG Zhe. Determination of oxygen and nitrogen in tantalum-tungsten alloy by inert gas fusion infrared absorption-thermal conductivity method. , 2022, 42(4): 69-74.
[1] 盛晓晨,孟佳,严彪,等.钽钨合金Si-Ti-Hf高温抗氧化涂层的制备及性能研究[J].粉末冶金工业,2021,31(2):23-30. SHENG Xiaochen,MENG Jia,YAN Biao,et al.Preparation and oxidation behavior of Si-Ti-Hf high temperature anti-oxidation coatings on Ta-10W alloy[J].Powder Metallurgy Industry,2021,31(2):23-30. [2] Ma G Q,Hughes D A,Godfrey A W,et al.Microstructure and strength of a tantalum-tungsten alloy after cold rolling from small to large strains[J].Journal of Materials Science & Technology,2021,83:34-48. [3] 王宽,李波,孙宝莲,等.惰性气体中熔融试样-红外光谱法测定锡钛合金中氧含量[J].理化检验(化学分册),2014,50(6):737-739. WANG Kuan,LI Bo,SUN Baolian,et al.IR spectrometric determination of oxygen in tin-titanium alloy with fusion of sample in inert gas atmosphere[J].Physical Testing and Chemical Analysis (Part B:Chemical Analysis), 2014,50(6):737-739. [4] 蒋亚芳.ONH836分析仪同时测定钽制品中氧、氮、氢含量研究[J].硬质合金,2017,34(6):429-435. JIANG Yafang.Simultaneous determination of oxygen,nitrogen and hydrogen contents in tantalum products by ONH836 analyzer[J].Cemented Carbide,2017,34(6):429-435. [5] 蔺菲,王蓬,李朝,等.惰气熔融-红外吸收/热导法测定铜铬合金中氧和氮[J].冶金分析,2018,38(7):38-43. LIN Fei,WANG Peng,LI Chao,et al.Determination of oxygen and nitrogen in copper-chromium alloy by inert gas fusion infrared absorption-thermal conductivity method[J].Metallurgical Analysis,2018,38(7):38-43. [6] 王宽,周恺,李波,等.惰气熔融-红外/热导法同时测定锆合金中氧和氮[J].冶金分析,2017,37(1):81-84. WANG Kuan,ZHOU Kai,LI Bo,et al.Simultaneous determination of oxygen and nitrogen in zirconium alloy by inert gas fusion-infrared and thermal conductivity method[J].Metallurgical Analysis,2017,37(1):81-84. [7] 王宽,杨军红,柴琴琴,等.惰气熔融-热导法测定铝钒合金中氮[J].冶金分析,2020,40(5):79-82. WANG Kuan,YANG Junhong,CHAI Qinqin,et al.Determination of nitrogen in aluminum-vanadium alloy by inert gas fusion-thermal conductivity method[J].Metallurgical Analysis,2020,40(5):79-82. [8] 王长华,墨淑敏,王伟华,等.惰气熔融-红外吸收光谱法测定镍钛形状记忆合金中氧[J].冶金分析,2020,40(11):86-90. WANG Changhua,MO Shumin,WANG Weihua,et al.Determination of oxygen in nickel-titanium shape-memory alloy by inert gas fusion-infrared absorption spectrometry[J].Metallurgical Analysis,2020,40(11):86-90. [9] 王宽,李波,孙宝莲,等.惰气熔融-红外吸收法测定镍钛合金中的氧含量[J].中国无机分析化学,2012,2(4):47-49. WANG Kuan,LI Bo,SUN Baolian,et al.Determination of oxygen content in nickel-titanium alloy by inert gas fusion-infrared absorption method[J].Chinese Journal of Inorganic Analytical Chemistry,2012,2(4):47-49. [10] 高光洁子,冯圣雅,王莘泉,等.惰气熔融-脉冲加热法同时测定NdFeB合金中氧和氮[J].冶金分析,2011, 31(1):30-34. GAO Guangjiezi,FENG Shengya,WANG Xinquan,et al.Simultaneous determination of oxygen and nitrogen in NdFeB alloy by inert gas fusion-impulse heating method[J].Metallurgical Analysis,2011,31(1):30-34. [11] Banks C V,O'Laughlin J W,Kamin G J.Determination of oxygen in yttrium and yttrium fluoride by the inert gas fusion method[J].Analytical Chemistry,1960,32(12):1613-1616. [12] 周海收,王启芳.稀土金属钕和镝中氧氮的测定方法研究[J].分析试验室,2005,24(3):79-81. ZHOU Haishou,WANG Qifang.Determination of impurity oxygen and nitrogen in the metals of neodymium and dysprosium[J].Chinese Journal of Analysis Laboratory,2005,24(3):79-81. [13] 刘攀,张欣耀,张毅.惰气熔融-红外吸收法测定铬铝、钼铝中间合金粉中氧[J].冶金分析,2020,40(6):13-20. LIU Pan,ZHANG Xinyao,ZHANG Yi.Determination of oxygen in chromium-aluminum and molybdenum-aluminum master alloy powder by inert gas fusion-infrared absorption method[J].Metallurgical Analysis,2020,40(6):13-20.
