Results 61 to 70 of about 21,223 (209)

Characterization of steel 70XL used in the manufacture of balls for the clinker's milling

open access: yesMinería y Geología, 2017
The present article deals with the wear of the balls used for the grinding of the clinker in the processes of obtaining cement. Three specimens of different steel were made: one of steel AISI 4140, with which balls are forged for the milling process ...
Eider Gresesqui-Lobaina   +2 more
doaj  

Obtención de MMC superficial en AA5052-H32 empleando el proceso FSP

open access: yesRevista UIS Ingenierías, 2019
En este trabajo se empleó el proceso friction stir procesing (FSP), para obtener un material compuesto de matriz metálica (MMC por sus siglas en inglés) en la superficie de una lámina de aluminio AA5052-H32, empleando partículas de alúmina fase gamma ...
María Zuluaga-Posada   +3 more
doaj   +1 more source

Medida de la dureza de sólidos mediante nanoindentación

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2005
Hardness is not readily measurable by means of instrumented indentation since the value of the contact area depends on the pile-up or sink-in occurring near the contact surface of the sample. The most widespread method to estimate it by means of the loading/unloading curve of indentation, Oliver and Pharr’s method, deviates, in the extreme cases, up to
Alkorta, J., Gil Sevillano, J.
openaire   +2 more sources

Fresamento periférico do aço AISI-SAE D6 temperado e revenido utilizando fresas de metal-duro [PDF]

open access: yes, 2003
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.O objetivo deste trabalho foi desenvolver ferramentas, métodos e parâmetros de corte, que possam ser aplicados na ...
Cavaler, Luiz Carlos de Cesaro
core  

CORRELACIÓN DE LA MICROESTRUCTURA, LA DUREZA Y LA SUPERFICIE DE FRACTURA CON LA RESISTENCIA A LA FATIGA DEL ACERO SAE 1045

open access: yesRevista de Investigaciones Universidad del Quindío, 2013
Con el propósito de correlacionar la microestructura, la dureza y la superficie de fractura con la resistencia a la fatiga del acero SAE 1045 se realizó esta investigación.
Jonnathan Muñoz Cubillos   +1 more
doaj  

Properties of type IV plaster considering variation in the mold/model position during setting stage [PDF]

open access: yesRGO: Revista Gaúcha de Odontologia, 2010
Objective: To assess the influence of the position of the mold during the setting stage of type IV stone plaster Durone (Dentsply Ind. Com., Rio de Janeiro, Brazil), on the following properties: surface hardness and roughness.
Tarcisio José de Arruda Paes Junior   +5 more
doaj  

Evaluation of contact angle and mechanical properties of resin monomers filled with graphene oxide nanofibers. [PDF]

open access: yesBraz Dent J, 2023
Velo MMAC   +4 more
europepmc   +1 more source

Cálculo da constante de dureza em sistemas ferromagnéticos [PDF]

open access: yesCiência e Natura, 1986
A two-band model for the magnetism is used to calculate the stiffness constant in ferromagnetic systems. One band is narrow and degenerated, representing the "quasi-localized" electrons. The second one is a wide band containing very few itinerant electrons. The transverse dynamical susceptibility is calculated within the random-phase approximation (RPA)
openaire   +1 more source

Variabilidad de la dureza de las siliconas a lo largo del tiempo de catalización

open access: yes, 2010
El presente estudio trata sobre una de las características que mejor dei ne el comportamiento funcional de una ortesis digital de silicona: su dureza.
Domínguez-Maldonado, Gabriel   +3 more
core  

Home - About - Disclaimer - Privacy