Now showing items 1-10 of 274
Nanotribological behavior of deep cryogenically treated martensitic stainless steel
Cryogenic treatments are increasingly used to improve the wear resistance of various steel alloys by means of transformation of retained austenite, deformation of virgin martensite and carbide refinement. In this work the ...
Effects of cryogenic and stress relief treatments on temper carbide precipitation in AISI D2 tool steel
The effects of cryogenic and stress relief treatments on temper carbide precipitation in the cold work tool steel AISI D2 were studied. For the cryogenic treatment the temperature was −196°C and the holding time was 2, 24 ...
Microestrutura e propriedades mecânicas da liga AA6061 processada por deformação plástica severa em temperatura criogênica
(Universidade Federal de São CarlosUFSCarPrograma de Pós-graduação em Ciência e Engenharia de MateriaisCâmpus São Carlos, 2017-08-08)
The present work aimed two fronts: to characterize the mechanical behavior of the AA6061 alloy at cryogenic temperature, and to study the microstructural and properties evolution after cryogenic severe plastic deformation. ...
Dynamic modelling and optimisation of cryogenic systems
(Pergamon-Elsevier Science Ltd, 2007-05)
This work addresses the dynamic optimisation of the cryogenic sector in a large-scale natural gas processing plant. Main attention is focused on rigorous dynamic modelling of countercurrent heat exchangers with phase change ...
Dielectric properties of Pb Nb2 O6 ferroelectric ceramics at cryogenic temperatures
Complex dielectric permittivity measurements in Pb Nb2 O6 ceramics were performed in a frequency and temperature range of 1 kHz-1 MHz and from 15 to 900 K, respectively. The results revealed two dielectric anomalies showing ...
Cryogenic operation of FinFETs aiming at analog applications
(ELSEVIER SCI LTD, 2009)
FinFETs are recognized as promising candidates for the CMOS nanometer era. In this paper the most recent results for cryogenic operation of FinFETs will be demonstrated with special emphasis on analog applications. Threshold ...
Diseño de un sistema integral para mejorar la seguridad, el transporte y la manipulación de termos criogénicos en zonas rurales de Colombia : es estudio de caso : hacienda la Libia Cartago-Valle
(Universidad Católica de Pereira, 2014-11-21)
Livestock is an activity progressing daily and implements agricultural solutions such as artificial insemination, helping the development of embryos and providing the farmer to have genetic characteristics for their ...
Determination of Cd and Pb in food slurries by GRAS using cryogenic grinding for sample preparation
(Springer-verlag BerlinBerlinAlemanha, 2002)