Formation, adhesion and mechanical/chemical properties of protective coatings

Some general considerations for protective coatings are discussed. It is suggested that ceramic coatings may provide a class of coatings applicable to high temperature turbine blades for use in a corrosive/erosive environment. In particular, the ceraming glass materials would seem to hold promise, but little or nothing has been done on depositing these materials by vacuum processes

Fundamental processes in ion plating

Ion plating is a generic term applied to film deposition processes in which the substrate surface and/or the depositing film is subjected to a flux of high energy particles sufficient to cause changes in the interfacial region of film properties compared to a nonbombarded deposition. Ion plating is being accepted as an alternative coating technique to sputter deposition, vacuum evaporation and electroplating. In order to intelligently choose between the various deposition techniques, the fundamental mechanisms, relating to ion plating, must be understood. This paper reviews the effects of low energy ion bombardment on surfaces, interface formation and film development as they apply to ion plating and the implementation and applications of the ion plating process

Coatings for fusion reactor environments

The internal surfaces of a tokamak fusion reactor control the impurity injection and gas recycling into the fusion plasma. Coating of internal surfaces may provide a desirable and possibly necessary design flexibility for achieving the temperatures, ion densities and containment times necessary for net energy production from fusion reactions to take place. In this paper the reactor environments seen by various componentare reviewed along with possible materials responses. Characteristics of coating-substrate systems, important to fusion applications, are delineated and the present status of coating development for fusion applications is reviewed. Coating development for fusion applications is just beginning and poses a unique and important challenge for materials development

Bibliography: ion plating and related ion bombardment effects

A bibliography of references concerning ion plating and related ion bombardment effects is presented. The references are listed in the year of publication

A SURVEY OF SELECTIVE SOLAR ABSORBERS AND THEIR LIMITATIONS

A number of materials and techniques have been used to form selective solar absorber coatings. Each of the coating processes and the coatings formed has its own limitations which are generally poorly defined. The poor state of knowledge on the limitations of the coating processes and the resulting coatings poses a problem for the component design and the materials engineer. This paper reviews the state of knowledge of some of the coating processes and materials being used and of potential usefulness in mid-temperature solar-thermal collectors. A principle point that is made is the lack of production experience and knowledge of the degradation modes for most of the coating technologies and coating material

Proposal to NSF for a CdS--Cu/sub 2/S photovoltaic cell development program

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