An epoxy-sandwich technique for preserving thin coatings during specimen preparation

Nelson, James A.; Slepian, R. M.

doi:10.1016/0026-0800(69)90049-4

Cited by 3 publications

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“…To minimize the effects of edge rounding during coupon preparation, an epoxy sandwich technique was used. 16 Each coupon was cut into two pieces and sandwiched together with the surfaces of interest ͑oxide layers͒ face to face. A drop of epoxy was used to bind the two pieces together.…”

Section: Methodsmentioning

confidence: 99%

Alloy 600 Aqueous Corrosion at Elevated Temperatures and Pressures: An In Situ Raman Spectroscopic Investigation

Maslar

Hurst

Bowers

et al. 2009

J. Electrochem. Soc.

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Two alloy 600 coupons with different surface treatments were exposed in an optically accessible flow cell to air-saturated, high-purity water: one coupon at temperatures up to 543°C at a pressure of 25.4MPa and one coupon at temperatures up to 392°C at 15.65MPa . In situ Raman spectra were collected at various temperatures as each coupon was heated and then cooled. Each coupon was also characterized ex situ with Raman spectroscopy, scanning electron microscopy, and energy dispersive X-ray spectrometry. A NinormalFe2normalO4 phase was identified on both coupon surfaces while CrIII -containing phases, including α-CrOOH and α-normalCr2normalO3 , were identified only on the coupon exposed at higher temperatures, at a higher pressure, and with a rougher surface finish. In addition, the results from the alloy 600 coupon exposed at higher temperatures and a 304L stainless steel coupon exposed under nominally identical conditions were compared. Both NinormalFe2normalO4 and α-CrOOH phases were observed on the 304L stainless steel coupon. In general, in situ Raman spectroscopy was found to be sensitive to differences in alloy 600 corrosion processes attributed to different surface treatments and differences in alloy 600 and 304L stainless steel corrosion processes attributed to the different oxidation resistance of each alloy.

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Section: Methodsmentioning

confidence: 99%