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Basic Mechanisms Providing Oxidation Resistance In Structural Metals At High Temperatures Volume Ii The Defect Structure Of Nonstoichiometric Rutile Tio2 And Nonstoichiometric Rutile Containing 1 To 10 Mole Cb2o5
Download Basic Mechanisms Providing Oxidation Resistance In Structural Metals At High Temperatures Volume Ii The Defect Structure Of Nonstoichiometric Rutile Tio2 And Nonstoichiometric Rutile Containing 1 To 10 Mole Cb2o5 full books in PDF, epub, and Kindle. Read online Basic Mechanisms Providing Oxidation Resistance In Structural Metals At High Temperatures Volume Ii The Defect Structure Of Nonstoichiometric Rutile Tio2 And Nonstoichiometric Rutile Containing 1 To 10 Mole Cb2o5 ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Basic Mechanisms Providing Oxidation Resistance in Structural Metals at High Temperatures. Volume II. The Defect Structure of Nonstoichiometric Rutile (TiO2) and Nonstoichiometric Rutile Containing 1 to 10 Mole % Cb2O5 by : Casimir J. Rosa
Download or read book Basic Mechanisms Providing Oxidation Resistance in Structural Metals at High Temperatures. Volume II. The Defect Structure of Nonstoichiometric Rutile (TiO2) and Nonstoichiometric Rutile Containing 1 to 10 Mole % Cb2O5 written by Casimir J. Rosa and published by . This book was released on 1975 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall research program in which this investigation is a part is a study of oxidation of titanium and titanium alloys in hopes of yielding information concerning possible alloy additions which may improve the oxidation resistance of titanium structural materials at temperatures in the range 800 to 1200C. Previous investigations have shown marked improvement in the oxidation resistance of titanium by additions of several metals, of which columbium is one. Because the thermodynamic stability limits for nonstoichiometric rutile is in the range of oxygen chemical potentials which can be conveniently measured by electrochemical techniques, an EMF (electromotive force) cell using yttria doped thoria as a solid electrolyte was designed to determine the thermodynamic properties of nonstoichiometric rutile and rutile containing columbia.
Book Synopsis Basic Mechanisms Providing Oxidation Resistance in Structural Metals at High Temperatures. Volume I. The Effect of Gaseous Pretreatment and Oxide Sintering on Oxidation of Ti-4.32 Wt.% Cb and Ti-0.96 Wt.% Si by : Casimir J. Rosa
Download or read book Basic Mechanisms Providing Oxidation Resistance in Structural Metals at High Temperatures. Volume I. The Effect of Gaseous Pretreatment and Oxide Sintering on Oxidation of Ti-4.32 Wt.% Cb and Ti-0.96 Wt.% Si written by Casimir J. Rosa and published by . This book was released on 1975 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of nitrogen pretreatment at the oxidation temperature of 900, 1000 and 1100C, and of oxide sintering at 100C above the respective oxidation temperature have been investigated in an attempt to reduce the oxidation rates of the Ti-4.32 wt.% Cb and Ti-0.96 wt.% Si alloys.
Book Synopsis Research on Defect Controlled Electrical Properties of Rutile by : W. M. Hirthe
Download or read book Research on Defect Controlled Electrical Properties of Rutile written by W. M. Hirthe and published by . This book was released on 1966 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electrical conductivity of single crystals of rutile was measured in the 'c' direction over the temperature range 800C to 1500C and from 1 to 10 to the minus 15th power atm of oxygen. The non-stoichiometric defect structure of rutile was rationalized in terms of a defect model involving quasi-free electrons and both triply and quadruply ionized titanium interstitials. The standard enthalpy of formation for the following defect reactions in rutile: (a) Ti + 20 = O2 (g) + Ti sub i (+3) + 3e; delta H sub a = 9.3(ev) (b) Ti + 20 = O2 (g) + Ti sub i (+4) + 4e; delta H sub b = 10.7(ev) (c) Ti sub i (+3) = Ti sub i (+4) + e; delta H sub c = 1.4(ev), were determined from the temperature dependence of A and B obtained from the above relation and from the experimental expression between the electron mobility and temperature. Excellent agreement was observed between the value of delta H sub a = 9.3(ev) and the negative value of the relative partial molar enthalpy of oxygen -delta H sub O2 =9.16(ev), for nonstoichiometric rutile obtained by employing an electrochemical technique. The electrical conductivity of rutile in air below approximately 950C appears, on the basis of this investigation to be impurity controlled due to the presence of aluminum rather than intrinsic conduction. (Author).
Book Synopsis Research on Defect Controlled Electrical Properties of Rutile by : W. M. Hirthe
Download or read book Research on Defect Controlled Electrical Properties of Rutile written by W. M. Hirthe and published by . This book was released on 1966 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electrical conductivity of single crystals of rutile was measured in the 'c' direction over the temperature range 800C to 1500C and from 1 to 10 to the minus 15th power atm of oxygen. The non-stoichiometric defect structure of rutile was rationalized in terms of a defect model involving quasi-free electrons and both triply and quadruply ionized titanium interstitials. The standard enthalpy of formation for the following defect reactions in rutile: (a) Ti + 20 = O2 (g) + Ti sub i (+3) + 3e; delta H sub a = 9.3(ev) (b) Ti + 20 = O2 (g) + Ti sub i (+4) + 4e; delta H sub b = 10.7(ev) (c) Ti sub i (+3) = Ti sub i (+4) + e; delta H sub c = 1.4(ev), were determined from the temperature dependence of A and B obtained from the above relation and from the experimental expression between the electron mobility and temperature. Excellent agreement was observed between the value of delta H sub a = 9.3(ev) and the negative value of the relative partial molar enthalpy of oxygen -delta H sub O2 =9.16(ev), for nonstoichiometric rutile obtained by employing an electrochemical technique. The electrical conductivity of rutile in air below approximately 950C appears, on the basis of this investigation to be impurity controlled due to the presence of aluminum rather than intrinsic conduction. (Author).
