Abstract
THE insulating materials from which the designer has to choose cover a very wide range of natural and artificial substances. They vary from rocky deposits, like slate and marble, to highly complicated synthetic resins. The engineering expert has to familiarise himself with all of them, and choose for his special purposes those with suitable characteristics. Mica is the most important mineral material for insulating work. Its excellent electrical properties, great mechanical strength, ease of cleavage into continuous laminæ, purity, chemical inertness, and resistance to high temperature put it into a class by itself. It is used in natural plates for condensers, certain heating devices, and small commutators. It is also used for non-electrical purposes, such as sound producing diaphragms, and to build up composite materials.
Electrical Insulating Materials: an Engineering Treatise on the Production, Characteristics and Uses of Electrical Insulating Materials.
By H. Warren. Pp. 516. (London: Ernest Benn, Ltd., 1931.) 42s. net
Article PDF
Rights and permissions
About this article
Cite this article
Electrical Insulating Materials: an Engineering Treatise on the Production, Characteristics and Uses of Electrical Insulating Materials . Nature 129, 744 (1932). https://doi.org/10.1038/129744b0
Issue Date:
DOI: https://doi.org/10.1038/129744b0