Results 41 to 50 of about 14,606 (97)

Preparación y propiedades de materiales cerámicos bioinertes en el sistema Al2O3-TiO2-SiO2

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 1998
Very fine and sinterable ceramic powders (100-600 nm) in the system Al2O3-TiO2-SiO2 were obtained by the method of cohydrolisis from organo-metallic precursors.
Boccaccini, A. R.   +4 more
doaj  

Production of Si3N4 porous beads via carbothermal reduction and nitridation technique

open access: yesJournal of Asian Ceramic Societies, 2020
Si3N4 porous beads were produced from direct carbothermal reduction and nitridation of spheres composed of carbon+SiO2 mixtures. A simple one–step sol–gel templating technique was used to prepare carbon+SiO2 (molar ratio of carbon/SiO2 was set as 4 ...
Gülsüm Topateş, Ayse Kalemtaş
doaj   +1 more source

Corrosión atmosférica de metales en condiciones climáticas extremas

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2000
This paper analyses the influence of extreme climatic conditions on the atmospheric corrosion of metals. This corrosion phenomenon is determined mainly by the time that moisture is retained on the metallic surface (time of wetness), the presence of ...
Chico, B.   +2 more
doaj  

Step distribution of Yb filling fraction during microstructural evolution in skutterudites

open access: yesJournal of Advanced Ceramics, 2019
To achieve a better material for thermoelectric power generation device, filled skutterudite Yb0.3Co4Sb12 samples were fabricated by melting–quenching–annealing–spark plasma sintering (SPS) method.
Jing Mei   +7 more
doaj   +1 more source

Characterization and evaluation of porous hydroxyapatite synthesized by oil-in-water method as carrier of donepezil for the preventive of Alzheimer’s disease by controlled release

open access: yesJournal of Asian Ceramic Societies, 2020
Alzheimer’s disease (AD) is the most common cause of dementia. Patients are generally to forget taking pills because of memory loss or to skip medication due to side effects; that might stop the medication and affect the results of the treatment. In this
Chih-Hsiang Fang   +5 more
doaj   +1 more source

Study of a Mixed Alkaline–Earth Effect on Some Properties of Glasses of the CaO-MgO-Al2O3-SiO2 System

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2007
In the present work, we studied a “Mixed Alkaline–Earth Effect”, i.e. the non-linear behaviour showed by the glass transition temperature as well as by the compressive strength of glasses of the CaO-MgO-Al2O3-SiO2 system, when a part of the CaO contained
Valle-Fuentes, J. F.   +4 more
doaj  

Formation of surface defects by thermal shock method for the improved photocatalytic activity of ZnO nanoparticles

open access: yesJournal of Asian Ceramic Societies, 2020
Surface-modified ZnO photocatalysts with enhanced UVA-light-driven and visible-light-driven activities were synthesized by the thermal shock method with Cu(NO3)2 at different thermal shock temperatures (300 – 600°C).
Tien Khoa Le   +6 more
doaj   +1 more source

Síntesis y almacenamiento de carga de la nueva aleación polipirrol/poli(ácido maleico-olefina)

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2000
The influence that the electrosynthesis conditions of the polypyrrole/poly(maleic acid-co-olefin) blend have on the charge storage ability (amount of electrical charge stored (mC) per unit mass (mg) of electrogenerated polymer) has been analysed. This is
D´eramo, F., Otero, T. F.
doaj  

Bioactivity studies of calcium magnesium silicate prepared from eggshell waste by sol–gel combustion synthesis

open access: yesJournal of Asian Ceramic Societies, 2015
The present study focused on the synthesis of calcium magnesium silicate (akermanite, Ca2MgSi2O7) using eggshell biowaste (as calcium source), magnesium nitrate and tetraethyl orthosilicate (TEOS) as starting materials.
Rajan Choudhary   +2 more
doaj   +1 more source

Oral microbiome diversity associates with carotid intima media thickness in middle-aged male subjects

open access: yesCommunications Medicine
Although there have been significant advancements in reducing the burden of cardiovascular disease (CVD) by modifying traditional CVD risk factors, substantial risks persist, particularly among male subjects who exhibit heightened susceptibility to ...
Ramin Akhi   +13 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy