The Electrical Properties of Some Lithia-Containing Glasses

JSGT 1951 V35 T136-T145

Measurements of thermal expansion, DC electrical resistivity, dielectric constant and loss angle have been made on glasses from selected parts of the composition fields: Li₂O–SiO₂, Li₂O–B₂O₃, Li₂O–B₂O₃–SiO₂ , Li₂O–B₂O₃–Al₂O₃–SiO₂, L₂O–Na₂O–B₂O₃–Al₂O₃–SiO₂, Li2O–K₂O–B₂O₃–Al₂O₃–SiO₂ and Li₂O–CaO–B₂O­–Al₂O₃–SiO₂. As a result of the investigation, it has been found possible to prepare glasses of low electrical resistivity (10⁹–10¹⁹ ohms/c.c. at room temperature), and of low loss angle (values of tanδ as low as 0·0011 at frequencies of one megacycle per second).

A. E. Dale, E. F. Pegg & J. E. Stanworth