scholarly journals A coleção de livros textos e o currículo acadêmico: relacionamento quantitativo

2021 ◽  
pp. 33-39
Author(s):  
Malvina Vianna Rosa ◽  
Lilia Conceição Knewitz Levy
Keyword(s):  
View Point ◽  
Acquisition Process

The importance of the knowledge of the basic bibliography concerned to graduation course is emphazised. lt establishes a "ratio" that results of the relation between the enrolled students number and the book copies number existent in library. This "ratio" determines neessities under guantitative view-point and shows priorities in the acquisition process.

Electrochemical Impedance Characteristics of Sintered 7075 Aluminum Alloy Under Ssrt Condition

2013 ◽  
Vol 58 (2) ◽  
pp. 505-508 ◽  
Author(s):  
S. Sunada ◽  
N. Nunomura
Keyword(s):  
Aluminum Alloys ◽  
Complex Shape ◽  
Electrochemical Impedance ◽  
Ingot Metallurgy ◽  
View Point ◽  
Corrosion Properties ◽  
Electrochemical Tests ◽  
Impedance Characteristics ◽  
Polarization Test ◽  
Conventional Ingot

Powder metallurgy (P/M) process has the advantage of better formability to fabricate complex shape products without machining and welding. And recently this P/M process has been applied to the production of aluminum alloys. The P/M aluminum alloys thus produced also have received considerable interest because of their fine and homogeneous structure. Many papers have been published on the mechanical properties of the aluminum alloys produced by P/M process while there have been few on their corrosion properties from the view point of electrochemistry. In this experiment, therefore, two kinds of 7075 aluminum alloys prepared by the conventional ingot metallurgy (I/M) process and P/M process were used, I/M material is commercially available. and their corrosion behavior were investigated through the electrochemical tests such as potentiodynamic polarization test, slow rate strain tensile (SSRT) test and electrochemical impedance spectroscopy (EIS) measurement under SSRT test in the corrosion solution and the deionized water.

Assessing the Power of Electron Back Scattering Diffraction Characterization of Deformed F-138 Steel from the View Point of Crystal Diffraction

2014 ◽  
Vol 51 (9) ◽  
pp. 634-655
Author(s):  
R. E. Bolmaro ◽  
M. C. Avalos ◽  
N. S. De Vincentis ◽  
A. M. Kliauga ◽  
H.-G. Brokmeier
Keyword(s):  
View Point ◽  
Back Scattering
Sign in / Sign up

Export Citation Format

Share Document