Electrical Resistance Studies of Anodic and Corrosion Oxide Films Formed on Zirconium PDF Download
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Author: R. D. Misch
Publisher:
ISBN:
Category : Electric conductivity
Languages : en
Pages : 42
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Book Description
Oxide films were produced on zirconium and zirconium-titanium alloys by anodizing and by exposure to oxygen and water at high temperatures. The electrical resistances of the films were measured in air at room temperature and in vacuum at temperatures up to 290 deg C.
Author: R. D. Misch
Publisher:
ISBN:
Category : Electric conductivity
Languages : en
Pages : 42
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Book Description
Oxide films were produced on zirconium and zirconium-titanium alloys by anodizing and by exposure to oxygen and water at high temperatures. The electrical resistances of the films were measured in air at room temperature and in vacuum at temperatures up to 290 deg C.
Author: Geroge B. Jr Adams
Publisher:
ISBN:
Category : Chemical reactions
Languages : en
Pages : 40
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Author: R. D. Misch
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 32
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Book Description
Zirconium anodizes similarly to tungsten in respect to the change of interference colors with applied voltage. However, the oxide layer on tungsten cannot reach as great a thickness. Hafnium does not anodize in the same way as zirconium but is similar to tantalum. By measuring the interference color and capacitative thicknesses on zirconium (Grades I and III) and a 2.5 wt.% tin alloy, the film was found to grow less rapidly in terms of capacitance than in terms of interference colors. This was interpreted to mean that cracks develop in the oxide as it thickens. The effect was most pronounced on Grade III zirconium and least pronounced on the tin alloy. The reduction in capacitative thickness was especially noticeable when white oxide appeared. Comparative measurements on Grade I zirconium and 2.5 wt.% tin alloy indicated that the thickness of the oxide film on the tin alloy (after 16 hours in water) increased more rapidly with temperature than the film on zirconium. Tin is believed to act in ways to counteract the tendency of the oxide to form cracks, and to produce vacancies which promote ionic diffusion.
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1396
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Book Description
Author: R. D. Misch
Publisher:
ISBN:
Category : Corrosion resistant materials
Languages : en
Pages : 92
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Book Description
Zirconium of varying quality was tested by anodizing at constant voltage and at constant current density. The pattern of film growth was found to be sensitive to metal composition and surface preparation. The relation of anodic film growth to corrosion must take into account certain characteristics peculiar to anodizing. These are chiefly concerned with the electrical field in the oxide and the effect of the electrolytes.
Author: George Baker Adams
Publisher:
ISBN:
Category : Electrolytic oxidation
Languages : en
Pages : 38
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Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1036
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Author: Grzegorz D. Sulka
Publisher: Elsevier
ISBN: 0128168773
Category : Technology & Engineering
Languages : en
Pages : 483
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Book Description
Nanostructured Anodic Metal Oxides: Synthesis and Applications reviews the current status of fabrication strategies that have been successfully developed to generate nanoporous, nanotubular and nanofibrous anodic oxides on a range of metals. The most recent achievements and innovative strategies for the synthesis of nanoporous aluminum oxide and nanotubular titanium oxide are discussed. However, a special emphasis is placed on the possibility of fabrication of nanostructured oxide layers with different morphologies on other metals, including aluminum titanium, tantalum, tin, zinc, zirconium and copper. In addition, emerging biomedical applications of synthesized materials are discussed in detail. During the past decade, great progress has been made both in the preparation and characterization of various nanomaterials and their functional applications. The anodization of metals has proven to be reliable for the synthesis of nanoporous, nanotubular and nanofibrous metal oxides to produce a desired diameter, density, aspect ratio (length to diameter) of pores/tubes, and internal pore/tube structure. - Provides an in-depth overview of anodization techniques for a range of metals - Explores the emerging applications of anodic metal oxides - Explains mechanisms of formation valve metal oxides via anodization
Author: Mario Maraghini
Publisher:
ISBN:
Category : Oxidation
Languages : en
Pages : 64
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Author: C. M. Schwartz
Publisher:
ISBN:
Category : Oxide coating
Languages : en
Pages : 28
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