Abstract—
The β \( \rightleftarrows \) α phase transformations in foil of the Pd–52 at % Cu solid solution prepared by rolling have been studied using X-ray diffractometry and resistivity measurements during thermal heating–cooling cycles or lamp processing (LP) using light from high-power pulsed xenon lamps, followed by cooling. The results demonstrate that complete ordering of the two-phase (α + β) as-prepared (as-rolled) foil follows the sequence (α + β) → β → α → β in the first heating–cooling cycle and β → α → β in the second and subsequent cycles. When a radiative energy critical for a given thickness of foil with an ordered structure is delivered to the foil surface, an irreversible β → α phase transformation occurs, whose rate can be three orders of magnitude higher than the rate characteristic of the disordering process during Joule heating. After LP, the reversibility of the β \( \rightleftarrows \) α phase transformations, inherent in the initial, ordered structure, is observed in a second thermal cycle: heating to 700°C and cooling. The sequence of phase transitions is α → β → α → β in the first cycle and β → α → β in the second and subsequent cycles. The localization of light in the skin layer and finite thermal conductivity offer the possibility of producing a structure with a phase composition gradient at subcritical irradiation times. The fact that the LP-stabilized α-phase persists up to 300°C makes it possible to compare the mechanical properties of foil samples having identical elemental compositions but different (ordered and disordered) structures.
Similar content being viewed by others
Notes
Shared Research Facilities Center, federal state budget-funded educational institution of higher education Voronezh State University.
REFERENCES
Ievlev, V.M., Activation of solid-state processes by light from gas-discharge lamps, Usp. Khim., 2013, vol. 82, no. 9, pp. 815–834.
Spravochnik po lazeram (Handbook of Lasers), Prokhorov, A.M., Ed., Moscow: Sovetskoe Radio, 1967.
Ievlev, V.M., Kannykin, S.V., Kushchev, S.B., Sinel’nikov, A.A., and Soldatenko, S.A., Lamp processing-activated rutile film growth, Fiz. Khim. Obrab. Mater., 2011, no. 4, pp. 5–9.
Ievlev, V.M., Belonogov, E.K., Dybov, V.A., Kannykin, S.V., Serikov, D.V., Sitnikov, A.V., and Sumets, M.P., Synthesis of lithium niobate during crystallization of amorphous Li–Nb–O film, Inorg. Mater., 2019, vol. 55, no. 12, pp. 1237–1241.
Pilipenko, V.A., Bystrye termoobrabotki v tekhnologii SBIS (Rapid Thermal Annealing in VLSI Technology), Minsk: Izd. Tsentr Belorussk. Gos. Univ., 2004.
Kushchev, S.B., Phase composition and substructure of silicides resulting from flash lamp processing of metal films on silicon with incoherent light, Doctoral (Phys.–Math.) Dissertation, Voronezh: Voronezh State Technol. Univ., 2000.
Ievlev, B.M., Shvedov, E.V., Soldatenko, S.A., Kushchev, C.B., and Gorozhankin, Yu.V., Silicide formation during heat treatment of thin Ni–Pt and Ni–Pd solid-solution films and Pt/Ni bilayers on (111)Si, Inorg. Mater., 2006, vol. 42, no. 2, pp. 151–159.
Ievlev, V.M., Dontsov, A.I., Maksimenko, A.A., and Roshan, N.R., Reversibility of the β \( \rightleftarrows \) α phase transformations in a Pd–Cu solid solution, Inorg. Mater., 2017, vol. 53, no. 5, pp. 484–488.
Hydrogen in Metals, Alefeld, G. and Volkl, J., Eds., Heidelberg: Springer, 1978, vol. 1.
Goldbach, A., Yuan, L., and Xu, H., Impact of the fcc/bcc phase transition on the homogeneity and behavior of PdCu membranes, Separat. Purificat. Technol., 2010, vol. 73, pp. 65–70.
Ievlev, V.M., Dontsov, A.I., Belonogov, E.K., Kannykin, S.V., and Solntsev, K.A., α \( \rightleftarrows \) β phase transformations in rolled foil of the Pd–57 at % Cu solid solution, Inorg. Mater., 2017, vol. 53, no. 11, pp. 1163–1169.
Ievlev, V.M., Solntsev, K.A., Dontsov, A.I., Maksimenko, A.A., and Kannykin, S.V., Hydrogen permeability of thin condensed Pd–Cu foil: dependence on temperature and phase composition, Tech. Phys., 2016, vol. 61, no. 3, pp. 467–469.
Popov, L.E. and Kozlov, E.V., Mekhanicheskie svoistva uporyadochennykh tverdykh rastvorov (Mechanical Properties of Ordered Solid Solutions), Moscow: Metallurgiya, 1960.
Ievlev, V.M., Prizhimov, A.S., and Dontsov, A.I., Structure of the α–β interface in a PdCu solid solution, Phys. Solid State, 2020, vol. 62, no. 1, pp. 59–64.
Funding
This work was supported by the Russian Science Foundation, project no. 19-19-00232.
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by O. Tsarev
Rights and permissions
About this article
Cite this article
Ievlev, V.M., Dontsov, A.I., Prizhimov, A.S. et al. Flash Lamp Processing-Activated Structural Transformations in Foil of a Pd–Cu Solid Solution. Inorg Mater 56, 577–582 (2020). https://doi.org/10.1134/S0020168520060060
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0020168520060060