Hot‐dipped metallic coatings are of fundamental importance to the corrosion technologist because, in many applications, they are the cheapest and most durable finish. In this…
Abstract
Hot‐dipped metallic coatings are of fundamental importance to the corrosion technologist because, in many applications, they are the cheapest and most durable finish. In this article, the properties, preparation and uses of the metal coatings are compared and contrasted.
This assessment of the range of metals and plastics used in anti‐corrosive applications gives a guide to the reader who is uncertain of the type of spray coating most suited to…
Abstract
This assessment of the range of metals and plastics used in anti‐corrosive applications gives a guide to the reader who is uncertain of the type of spray coating most suited to his needs. After reviewing the development of spraying, the author compares the advantages and disadvantages of aluminium, zinc, tin and certain alloys, and follows with a comparison of metals and plastics. Lastly, polythene, superpolyamides, polythene polysulphide, PTFE and PTFCE are reviewed.
As a protective coating, zinc occupies the leading position amongst the metals. Here we are concerned mainly with the corrosion of zinc galvanizing in many of its applications…
Abstract
As a protective coating, zinc occupies the leading position amongst the metals. Here we are concerned mainly with the corrosion of zinc galvanizing in many of its applications. The position of zinc relative to the other commonly used metals for coatings for the protection of steel is briefly compared.
In this second part of the article we learn something more of the conditions in which corrosion of galvanizing can or cannot flourish and of the measures necessary for its…
Abstract
In this second part of the article we learn something more of the conditions in which corrosion of galvanizing can or cannot flourish and of the measures necessary for its prevention. Statistics are listed of experimental work on the life of hot‐dip galvanized coatings and related to different atmospheres.
High‐temperature oxidation is a most important aspect of corrosion and in this article the fundamentals of the subject are discussed with particular reference to the protective…
Abstract
High‐temperature oxidation is a most important aspect of corrosion and in this article the fundamentals of the subject are discussed with particular reference to the protective action of aluminium and diffused aluminium coatings on steel.
The use of metallic coatings as a protection against corrosion is a subject of considerable antiquity. Cladding and inlaying with gold, silver, and electrum was practised during…
Abstract
The use of metallic coatings as a protection against corrosion is a subject of considerable antiquity. Cladding and inlaying with gold, silver, and electrum was practised during the Byzantine and early Egyptian civilisations—the tinning of cast iron and copper vessels was known to be established prior to the birth of Christ by the Romans, to whom must also be attributed the lead cladding of ferrous fittings intended for service in marine environments. Metallic coatings can be produced by a wide variety of methods, and on the technique selected depends certain of the factors which control the protective value of the coating, e.g. thickness, uniformity, porosity, adhesion, and purity. Since the type of process used is often restricted by the nature of the article or component to be treated, it is intended to precede a description of the properties of the various metal coatings by a general discussion of the more important methods of coating application.
A summary of a recent symposium on diffusion coatings, by one of the contributors. A thin layer of material may be bonded to a base metal or component by heat/chemical treatment…
Abstract
A summary of a recent symposium on diffusion coatings, by one of the contributors. A thin layer of material may be bonded to a base metal or component by heat/chemical treatment to provide protection against corrosion or abrasion. There is need for wider circulation to industry of information about coatings.
Barrie O. Pettman and Richard Dobbins
This issue is a selected bibliography covering the subject of leadership.
Abstract
This issue is a selected bibliography covering the subject of leadership.
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President Bill Clinton has had many opponents and enemies, most of whom come from the political right wing. Clinton supporters contend that these opponents, throughout the Clinton…
Abstract
President Bill Clinton has had many opponents and enemies, most of whom come from the political right wing. Clinton supporters contend that these opponents, throughout the Clinton presidency, systematically have sought to undermine this president with the goal of bringing down his presidency and running him out of office; and that they have sought non‐electoral means to remove him from office, including Travelgate, the death of Deputy White House Counsel Vincent Foster, the Filegate controversy, and the Monica Lewinsky matter. This bibliography identifies these and other means by presenting citations about these individuals and organizations that have opposed Clinton. The bibliography is divided into five sections: General; “The conspiracy stream of conspiracy commerce”, a White House‐produced “report” presenting its view of a right‐wing conspiracy against the Clinton presidency; Funding; Conservative organizations; and Publishing/media. Many of the annotations note the links among these key players.