ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract A study has been made of the rate at which variousY-rotated quartz plates are etched in a concentrated ammonium bifluoride solution. The changes in the surface texture of these differently oriented plates on repeated etching are systematically investigated. To obtain all the information needed for an analysis of the dissolution shapes in the framework of the tensorial representation of the dissolution slowness the profile graph of a deeply etchedY-cut plate is also reported. The polar diagramL xz (θ) of the dissolution slowness associated with theY-rotated quartz plates is then derived using profile graph data. Numerical and graphical simulations of the dissolution shapes are used to verify the adequation of the lawL xz (θ). The comparison of the theoretical etch profiles with the Z" etch profiles produced by repeated etching on someY-rotated quartz plates shows complete agreement. Excellent agreement is also found between the theoretical and experimental shapes of the magnified profile graph related to deeply etchedY sections. From the consistency between the observed dissolution shapes and the computed shapes deduced from the tensorial analysis of the dissolution we can conclude that the proposed polar diagramL xz (θ) represents accurately the variations of the dissolution slowness with the angle θ in theXZ plane.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02385663
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