Beveling of quartz crystal blanks: model development
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A process model for the beveling of quartz crystal blanks is presented in this paper. Given a beveled crystal blank specification, material removal rate, initial bevel depth, and critical gap height can be calculated from the process parameters including powder type, machine rpm, barrel diameter, etc. Material removal rate and initial bevel depth are used to predict the beveling time, and critical gap height is used to predict the bevel profile. This model has been validated using various blanks and good agreement with experiments is found. Process optimization is also possible with the aid of this process model. Thus, this model provides an efficient and cost-effective way to the design of quartz crystal resonators. The model being developed has been successfully used in the design of quartz crystal blanks for the real batch production. Since this model is a combined physical and empirical one, it can be expanded to the batch processing of other materials.
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Dong, Chensong (2012)An experimental study on the beveling of quartz crystal blanks is presented in this paper. Two issues in the beveling are addressed: beveling time and the shape of bevel. The time needed for beveling is determined by ...
Dong, Chensong (2010)An experimental study on the bevelling of quartz crystal blanks is presented in this paper. Based on the analysis of bevelling mechanism, the concept of critical gap height is introduced for evaluating the material removal ...
Robert Boyle's Chiral Crystal Chemistry: Computational Re-evaluation of Enantioselective Adsorption on QuartzRohl, Andrew; Kahr, B.; Chittenden, B. (2006)While searching for early examples of interactions of organic chromophores with minerals in the context of a systematic study of the process of dyeing crystals, we came across Robert Boyle's description of an experiment ...