Results 141 to 150 of about 36,667 (285)

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

Study of the indications for macrolide prescriptions in a Colombian population [PDF]

open access: yesBiomedica, 2022
Valladales-Restrepo LF   +6 more
europepmc   +1 more source

Derecho al reingreso del excedente voluntario y posición del empresario ante el incumplimiento del plazo de preaviso fijado en convenio colectivo. STS de 18 de septiembre de 2002 [PDF]

open access: yes, 2003
La Sala 4ª del Tribunal Supremo desestimó el recurso de casación para unificación de doctrina. El Alto Tribunal estimó aplicable la norma convencional sobre la base de que el artículo 46.6 ET faculta a la negociación colectiva para regular el régimen y ...
Rodríguez Copé, María Luisa
core  

Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel   +6 more
wiley   +1 more source

Comportamiento coloidal de un caolín deshidratado

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2000
Short range attractive forces between particles can be developed by controlling the surface chemistry of particles in slurries. One method is to add salt to a dispersed slurry, which not only increases the slurry viscosity, but also imparts desirable ...
Ferrari, B., Moreno, R., Lange, F. F.
doaj  

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler   +9 more
wiley   +1 more source

Producción de oxi-indolalcaloides de Uncaria tomentosa in vitro y estudio del efecto citotóxico en líneas celulares de cáncer [PDF]

open access: yes, 2015
Proyecto de Investigación (Código: 5410-1510-9701) Instituto Tecnológico de Costa Rica. Escuela de Biología, 2015Uncaria tomentosa (Willd.) D.C (Uña de Gato), es una planta de la familia Rubiaceae, se caracteriza por la producción de diferentes ...
Alvarenga-Venutolo, Silvana   +2 more
core  

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

EFECTO DEL ULTRASONIDO EN LA SÍNTESIS DE ARCILLA PILARIZADA CON ALUMINIO EN MEDIO CONCENTRADO

open access: yesRevista Colombiana de Química, 2009
En este trabajo se realizó la síntesis de bentonita pilarizada con aluminio en medio concentrado, empleando ultrasonido en la etapa de intercalación.
Sonia Moreno   +2 more
doaj  

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