Abstract

For further improvement of reproducibility of intensity ratios of constituent vs. aluminum lines, noted when argon atmospheres were used in the spark excitation of aluminum alloy (Alcoa 24S) chip compacts, a study was made of the effects of the following factors: chip size, carbon bonding, shape of pellet, sample pellet to sample pellet and to carbon electrode forms. The results show that unbonded, flat tipped pellets to carbon counter-electrodes produce the most desirable combination. Chip size does not have a significant influence on the results.

Modifications of Spectrographic Methods for Analysis of Aluminum and Its Alloys

R. W. Callon and J. E. Burgener
J. Opt. Soc. Am. 34(9) 543-549 (1944)

A Study of the Applicability of the Pressed Pellet Electrode Method to the Spectrographic Analysis of Nickel Alloys*

C. J. Neuhaus
J. Opt. Soc. Am. 33(3) 167-174 (1943)

Analysis of the Excitation Characteristics of Spectra Emitted by Ferrous Alloys*

J. K. Hurwitz and J. Convey
J. Opt. Soc. Am. 42(1) 24-30 (1952)

Spectrographic Analysis of High Cobalt (Vitallium) Alloys

Y. T. Sihvonen, D. L. Fry, R. E. Nusbaum, and R. R. Baumgartner
J. Opt. Soc. Am. 39(3) 257-260 (1949)

Spectrographic Standard Samples of Aluminum Alloys

J. Opt. Soc. Am. 36(12) 706-706 (1946)