Revealing of dislocations in ZnS by chemical etching

Lendvay, E.

doi:10.1016/0022-0248(82)90354-2

Cited by 7 publications

(1 citation statement)

References 13 publications

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“…Samples were polished, etched with an aqueous solution of H 2 SO 4 –K 2 Cr 2 O 7 –H 2 O (K‐etchant, 27 ) and imaged using a standard optical microscope or a scanning electron microscope, LEO 1455VP SEM, (Oberkochen, Germany) operated in vacuum mode at 10 −3 torr at 20 kV with a filament current of ∼2.45 μA. Finally, some samples were characterized using a Hitachi H‐8100 transmission electron microscrope (TEM, Tokyo, Japan) to look for nanoscale structural features.…”

Section: Methodsmentioning

confidence: 99%

Effects of Temperature, Pressure, and Metal Promoter on the Recrystallized Structure and Optical Transmission of Chemical Vapor Deposited Zinc Sulfide

McCloy

Korenstein

Zelinski

2009

Journal of the American Ceramic Society

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Structural changes from processing in polytype‐rich zinc sulfide (ZnS) are complex and poorly understood. In this study, recrystallization was induced in chemical vapor deposited ZnS by annealing and hot isostatic pressing (HIPping). Samples were characterized using optical microscopy, SEM, TEM, electron diffraction, polycrystalline and powder X‐ray diffraction, and transmission spectroscopy. Recrystallization was found to reduce the hexagonality and increase the {111} texture of as‐deposited ZnS. Changes in hexagonality and texture can occur independently of each other. HIPped ZnS with superior transmission exhibits both a change in texture and a reduction in hexagonal content. Reduction in hexagonality, alone, was not sufficient to improve optical transmission from the visible to the infrared. For the first time, the effects of pressure, temperature, and the presence of platinum on recrystallization during commercial ZnS HIPping are separated and identified. Platinum was found to actively promote recrystallization and silver demonstrated a similar effect. Several theories focusing on the unique polytypic nature of ZnS are offered to explain the changes in structure and properties occurring during recrystallization. These findings contribute to a broader understanding of the nature of order–disorder and martensitic phase transformations in ceramic materials.

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Section: Methodsmentioning

confidence: 99%