Design of sorption and buoyancy artefacts made of silicon
AbstractThe design of sorption and buoyancy artefacts made of silicon will be shown. With these artefacts, also known as transfer standards, high-precision calibrations can be performed under atmospheric conditions. They are used to systematically determine and correct deviations in air density and deposits on the surface, such as water and hydrocarbons. This development has been of importance since the unit kilogram can be realized by monocrystalline spheres made of isotope enriched silicon in line with the new definition of the SI in 2019. The special constraints and the complete geometric design parameters for sorption and buoyancy artefacts will be presented.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).