Application of the Grimm magnetic field glow-discharge source to the analysis of mild and alloyed steel

Krüger, Ralf; Bombelka, R.M.; Laqua, K.

doi:10.1016/0584-8547(80)80034-6

Cited by 27 publications

(4 citation statements)

References 10 publications

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“…Both sources [61], [62] have had ma gnets incorporated into their desi gns in an attempt to increase both these parameters. The applied magnetic field forces the free electrons in the discharge to follow a helical motion about the electrical lines of force that increases their displacement through the negative glow, mak ing an exci ting or ionizing colli sion more probable.…”

Section: B Applicationsmentioning

confidence: 99%

Application of weakly ionized plasmas for materials sampling and analysis

Blades

Banks

Gill

et al. 1991

IEEE Trans. Plasma Sci.

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Section: B Applicationsmentioning

confidence: 99%

Application of weakly ionized plasmas for materials sampling and analysis

Blades

Banks

Gill

et al. 1991

IEEE Trans. Plasma Sci.

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“…The fundamental characteristics and performance of the magnetic field Grimm glow discharge source were described in two recent papers with reference to mild steel and stainless steel analysis (247,248). Recent progress in the use of glow discharge excitation in the iron and steel industry has been described ( 82), as has the use of and problems with this source for the analysis of cast irons (123).…”

Section: Emission Spectrometrymentioning

confidence: 99%

Water analysis

Fishman¹,

Erdmann²,

Garbarino³

1983

Anal. Chem.

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This review is produced from a search of the literature as performed with the DIALOG capabilities of Chemical Abstracts Service. The material covered in this particular review is a continuation of past reviews by the same authors and covers the period from September 1980 to October 1982 It is obvious that the level of activity in the publication of research results by analytical chemists and spectrographers in the steel industry is significantly reduced and directly reflects the malais that affects our industry. Without being overly critical, we will have approximately 300 less literature citations in this review as compared to the last one (448). ALUMINUMTotal trace aluminum was determined spectro hotometpriate dissolution steps as an Eriochrome Cyanine R complex (98), by using Chromazol KS as a color-forming agent (269), as a colored complex with salicylidene-o-aminophenol-4sulfonic acid (523), and with l-pheny1-2,3-dimethylpyrazolone-5-azopyrogallol (13).Low levels of A1 have been determined in high-and lowalloy steels and ferrovanadium by atomic absorption after separation from the matrix by electrolysis (94). The determination of acid soluble aluminum by AA continues to be a very popular method in the steel industry by virtue of its rapidity (51,76,511). Low concentrations were also determined in silicon steels by using electrothermal atomization (245). Direct injection of a dissolved steel sample into an AI-H flame has been reported (282).AA has not supplanted emission spectrochemical methods for this determination as they continue to be used for both soluble and insoluble aluminum determinations in steel (135,304). One method involves the premelting of a selected zone on a sample surface in an inert atmosphere so as to concentrate the insoluble aluminum inclusions in the surface of the remelted zone upon which the surface is mechanically removed and subsequently analyzed spectrally for the soluble portion (76). A design for an instrument has been claimed that eliminates anomalous emission spectrometric signals from aluminum inclusions, thus permitting the determination of acid-soluble A1 with high precision (452). rically in some unalloyed and low-alloyed steels a P ter appro-Various other procedures have been applied in a general way for the analysis of steel and related materials and include the use of lasers for localized sampling prior to spectral excitation (208,311), Grimm glow-discharge source excitation (466), ICP emission spectrometry (15,101), an acid dissolution, ignition, and NaF fluxing prior to dc arc excitation for stainless-steel analysis (299), and the use of dc plasma techniques for iron ores, sinters, and dust analysis (369).The accuracy of XRF spectrometry for determining A1 in low-alloy and stainless steels (at <0.1%) has reportedly been improved by adding granular FeZr to the molten metal during sampling (184). Conversely, a rapid and high percision XRF method for the determination of the A1203 content of steels has been described (317). Procedures for the routine XRF analysis of iron...

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“…Kruger et al carried out the analysis of steel samples at discharge parameters of 1.1 kV/200 mA. 4) In GD-OES, argon is commonly employed as the plasma gas due to the low running-cost as well as good performance as the emission source. The plasma gas plays an essential role in the characteristics of the discharge and in the excitation of sample atoms; however, few studies on the analytical application using different gases are presented 5) .…”

Section: Introductionmentioning

confidence: 99%

Advantage of Argon-helium Mixed Gas Plasmas for Carbon Determination in Glow Discharge Optical Emission Spectrometry.

Wagatsuma

2000

ISIJ International

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Application of the Grimm magnetic field glow-discharge source to the analysis of mild and alloyed steel

Cited by 27 publications

References 10 publications

Application of weakly ionized plasmas for materials sampling and analysis

Application of weakly ionized plasmas for materials sampling and analysis

Water analysis

Advantage of Argon-helium Mixed Gas Plasmas for Carbon Determination in Glow Discharge Optical Emission Spectrometry.

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