Activity Measurements of Components at Dilution in Alloys by Isopiestic Cell-Atomic Absorption Spectrometry Combination

通过等压池原子吸收光谱法组合测量合金中稀释成分的活度

• 批准号: 63470047
• 负责人: AZAKAMI Takeshi
• 金额: $ 3.97万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-63470047/
• 关键词: Atomic Absorption; Thermodynamic Activity; Indium Alloys; Antimony Alloys; Gallium Alloys; Lead Alloys; Gold Alloys; Bismuth Alloys; 原子吸光光度法; 合金; 熱力学的性質

An isopiestic cell was combined with an atomic absorption spectrophotometer to determine the activities of the components in alloys. By heating a pure element in the cell at different temperatures, whereas the cell window temperature being fixed, a calibration curve is obtained and then the curve is used to convert the absorbance measured for the alloy sample to the vapor pressure in the cell. The applicability of the isopiestic cell-atomic absorption spectrometer combination to vapor pressure measurements was examined by referring to the estimated mean free paths and the measured absorbances for pure element vapors as a function of temperature.An isothermal cell was used to determine the component activities for the system In-Sb(1100K), Ga-Sb(1100K), Sb-Pb(1130K), Pb-Au(1130K), Bi-Pb(833K), In-Pb(1110K), and Ga-Pb(1120K). The results were published at the meetings as follows:1. Yoon,Z.H., Nakazawa,S. and Azakami,T.: "Thermodynamic Study on Molten Alloys by Atomic Absorption Spectrometry(1)-Component Activities in Molten Ga-Pb and In-Pb Alloys-", Fall Meeting of Korean Institute of Metals, 1989.10.28.2. Yoon,Z.H., Nakazawa,S. and Azakami,T.: "Thermodynamic Study on Molten Alloys by Atomic Absorption Spectrometry(2)-Component Activities in Molten Bi-Pb and Sb-Pb Alloys- ", Fall Meeting of Korean Institute of Metals, 1989.10.28.3. Yoon,Z.H., Nakazawa,S. and Azakami,T.: "Activity Measurements for the Ga-Sb and In-Sb Systems by Atomic Absorption Spectrometry", Spring Meeting of Japan Institute of Metals, 1990.4.4.To make the correction concerned with back-ground absorption a new method was invented. The method is effective especially in a low-absorbance condition.

将等异无细胞与原子吸收分光光度计结合使用，以确定合金中成分的活性。通过在不同温度下加热细胞中的纯元素，而固定细胞窗户温度，获得了校准曲线，然后使用曲线将用于合金样品测量的吸光度转换为细胞中的蒸气压。 The applicability of the isopiestic cell-atomic absorption spectrometer combination to vapor pressure measurements was examined by referring to the estimated mean free paths and the measured absorbances for pure element vapors as a function of temperature.An isothermal cell was used to determine the component activities for the system In-Sb(1100K), Ga-Sb(1100K), Sb-Pb(1130K), PB-AU（1130K），BI-PB（833K），IN-PB（1110K）和GA-PB（1120k）。结果在会议上发布如下：1。 Yoon，Z.H。，Nakazawa，s。和Azakami，T。：“原子吸收光谱法（1）在熔融GA-PB和In-Pb合金中进行的熔融合金的热力学研究 - ”，韩国金属研究所秋季会议，1989.10.28.2。 Yoon，Z.H。，Nakazawa，s。和Azakami，T。：“原子吸收光谱法对熔融合金的热力学研究（2） - 摩尔BI-PB和SB-PB合金中的合并活性 - ”，韩国金属研究所秋季会议，1989.10.28.3。 Yoon，Z.H。，Nakazawa，s。和Azakami，t。：“通过原子吸收光谱法对GA-SB和SB系统的活性测量”，日本金属学院的春季会议，1990.4.4。为了使与背景吸收有关的纠正发明了新方法。该方法是有效的，尤其是在低吸收条件下。