FIELD: electricity.
SUBSTANCE: invention is related to the field of electric engineering, in particular, to a method of electrets production and may be used in medicine for manufacturing of bone implants used in surgery for treatment of bone fractures and arthroses. The suggested method of electrets production provides charging of an external surface of an electret of a complicated configuration, which base is made of tantalum and at all sides is covered by a thin layer of tantalum oxide by means of the potential drop between the conducting base and the external surface of the article through a liquid contact, and to this end the above article is placed at the potential drop to a vessel with a liquid and then it is removed from it. The claimed method also envisages a change in the potential drop when the article is removed from the liquid as well as a change in the liquid level in regard to the article, at that the above liquid represents a mixture of water and ethyl alcohol.
EFFECT: method allows obtaining the electret layer on the surface of the implant of the complicated shape with the preset distribution of potential along the whole surface of the article in one passage, ie at one removal of the article from the liquid, which is the technical result of the suggested invention.
5 cl, 1 dwg
