Fabrication and Sphericity Measurements of Single Crystal Silicon Spheres

Achim J. Leistner; Walter J. Giardini

doi:10.1364/OFT.1994.OTuA4

Optical Fabrication and Testing Workshop
Technical Digest Series (Optica Publishing Group, 1994),
paper OTuA4
•https://doi.org/10.1364/OFT.1994.OTuA4

Fabrication and Sphericity Measurements of Single Crystal Silicon Spheres

Achim J. Leistner and Walter J. Giardini

Optical Fabrication and Testing 1994

Rochester, New York United States
6–9 June 1994
ISBN:

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Finishing Technology (OTuA)

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A. J. Leistner and W. J. Giardini, "Fabrication and Sphericity Measurements of Single Crystal Silicon Spheres," in Optical Fabrication and Testing Workshop, Technical Digest Series (Optica Publishing Group, 1994), paper OTuA4.

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Abstract

Spheres (balls) of single crystal silicon have become essential components in experiments to redefine Avogadro's constant, which requires the measurement of three quantities, namely, the density, the lattice parameter and the molar mass of a suitable single crystal. Silicon has proved to be the best material so far.

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