Phase Equilibria and Crystal Growth for LiREF<sub>4</sub> Scheelite Laser Crystals

Klimm, D.; Santos, I.A. dos; Ranieri, I.M.; Baldochi, S.L.

doi:10.1557/proc-1111-d01-07

Cited by 3 publications

(2 citation statements)

References 15 publications

(33 reference statements)

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“…x = 0: GdF 3 crystallizes first at 857 • C [16]. If the temperature goes below the peritectic line at 755 • C, GLF is formed by the peritectic reaction with the LiF rich melt at the surface of the initial GdF 3 grains.…”

Section: Discussionmentioning

confidence: 99%

Crystal growth of LiGd1-xLuxF4 solid solutions by zone melting technique

Santos,

Klimm,

Baldochi

et al. 2012

Preprint

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Mixtures (1 − x) LiGdF 4 + x LiLuF 4 (0.50 ≤ x ≤ 0.75) were melted and submitted to one zone melting cycle under a reactive HF atmosphere, aiming the study of the crystal growth of LiGd 1−x Lu x F 4 solid solutions. Phase identification and compositional studies of the ingots were performed by scanning electron microscopy, energy dispersive X-ray spectrometry, and X-ray powder diffraction. Transparent regions of the bar related to the formation of LiGd 1−x Lu x F 4 solid solutions were found to be enlarged proportionally to the initial amount of Lu in the mixtures. Gd segregates to the end of the ingot.

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Section: Discussionmentioning

confidence: 99%

Crystal growth of LiGd1-xLuxF4 solid solutions by zone melting technique

Santos,

Klimm,

Baldochi

et al. 2012

Preprint

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“…In the available literature, there is no information on a chemically stable material that could be used for hightemperature contact with gadolinium, although quite different refractories have been reported to be used in the works where Gd-rich alloys or Gd-containing compounds were synthesized or examined at high temperatures using container-assisted methods (Ref [1][2][3][4][5][6][7][8][9]. Waring .…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Interaction of Liquid Gd with Y2O3

Turalska

Sobczak

Bruzda

et al. 2019

J. of Materi Eng and Perform

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The sessile drop method combined with contact heating procedure was applied for the investigation of hightemperature interaction between liquid Gd and Y 2 O 3 substrate. Real-time behavior of Gd sample in flowing inert gas (Ar) atmosphere upon heating to and at temperature of 1362°C was recorded using high-speed high-resolution CCD camera. The results evidenced that molten Gd wets Y 2 O 3 substrate (the contact angle h < 90°) immediately after melting of metal sample observed at T = 1324°C (T m = 1312°C). During the first 3 min of the sessile drop test, the contact angle dropped from h = 52°to h = 24°and then stabilized at the final value of h f * = 33°. The solidified Gd/Y 2 O 3 couple was subjected to structural characterization using optical microscopy, scanning electron microscopy coupled with x-ray energy-dispersive spectroscopy. The results evidenced that the wettability in the Gd/Y 2 O 3 system has a reactive nature and the leading mechanism of the interaction between liquid Gd and Y 2 O 3 is the dissolution of the ceramic in the liquid metal responsible for the formation of a deep crater in the substrate under the drop. Therefore, the final contact angle h f *, estimated from the side-view drop image, should be considered as an apparent value, compared to the more reliable value of h f = 70°measured on the cross section of the solidified couple.

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