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The description and use of a precision goniometer polishing jig are presented. Specimens pre-oriented within 6° can be exactly oriented and prepared on the jig. Samples of single crystals of refractory metals have been prepared with a surface polished within 1/20 of a wavelength of sodium light and with an orientation to within 15′ of the desired plane. This jig can operate on any horizontal running polishing machine.
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Butz et al. (1973) studied this question.
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