Ion Depletion of Glass at a Blocking Anode: I, Theory and Experimental Results for Alkali Silicate Glasses

Journal of the American Ceramic Society - Tập 57 Số 7 - Trang 291-294 - 1974
David Carlson1
1RCA Laboratories, Princeton, New Jersey 08540

Tóm tắt

A theory is presented for the ion depletion of glass beneath a blocking anode. The theoretical model is based on the assumption that the alkali ions in an alkali silicate glass have a much greater mobility than the nonbridging oxygen ions in the alkali‐depleted region. In this case, the dc conduction properties of the glass are determined by the motion of the uncombined oxygen ions in the depleted region. Expressions are derived for the spatial variation of the uncombined oxygen ions and for the current‐voltage relations in the high‐ and low‐field limits. In the high‐field limit, the theory predicts that the current will vary exponentially with the voltage; this behavior is shown in sodium silicate glasses.

Từ khóa


Tài liệu tham khảo

10.1111/j.1151-2916.1972.tb11305.x

10.1063/1.1750958

Mott N. F., 1948, Electronic Processes in Ionic Crystals

Hetherington G., 1965, High‐Temperature Electrolysis of Vitreous Silica: I, Phys. Chem. Glasses, 6, 6

10.1116/1.1315833

10.1016/0022-3093(70)90005-0

10.1063/1.1661706

Carlson D. E., Ion Depletion of Glass at a Blocking Anode; II, 295

Thông tin
Thông tin xuất bản

Journal of the American Ceramic Society

Tập 57 Số 7

291-294

Thông tin tác giả