DTIC ADA283098: Preparation of Hard Oxide Films pdf

DTIC ADA283098: Preparation of Hard Oxide Films

More Book Details

Description of the Book:

Data are presented on the formation and properties of oxide films produced on evaporated aluminum mirrors. These oxide films are produced at various temperatures in air, or by means of anodic oxidation in ammonium tartrate. Applications of anodically produced films are discussed with respect to reflection-type interference filters, and temperature-resistant films for electron diffraction and electron microscope investigations. The anodically produced films can be precisely controlled in thickness, and are 1.38 times thicker than the aluminum layers replaced. The current efficiency of the process is 80% and the thickness of the oxide layer formed in a given length of time increases linearly with the applied voltage (13.0 per v for 2 min anodizing time

• Creator/s: Defense Technical Information Center
• Date: 7/28/1949
• Year: 1949
• Book Topics/Themes: DTIC Archive, Hass, Georg, ARMY ENGINEER RESEARCH AND DEVELOPMENT LABS FORT BELVOIR VA, *FILMS, *SURFACES, *OXIDES, *EVAPORATION, *PROTECTIVE COATINGS, *ALUMINUM, *HARDNESS, *ANODIC COATINGS, LINEAR SYSTEMS, MIRRORS, TEMPERATURE, THICKNESS, AIR, VOLTAGE, TARTRATES, INFRARED SPECTRA, CURRENTS, ELECTROLYTES, ABSORPTION, FILTERS, AMMONIUM COMPOUNDS, VISIBLE SPECTRA, INTERFERENCE, ABRASION, ULTRAVIOLET SPECTRA, OXIDATION, HEAT TREATMENT, EFFICIENCY, LAYERS, RESISTANCE, LIGHT, REFRACTIVE INDEX

An excerpt captured from the PDF book