Results 31 to 40 of about 63,268 (204)

New insights into the dust formation of oxygen-rich AGB stars [PDF]

, 2013
We observed the AGB stars S Ori, GX Mon and R Cnc with the MIDI instrument at the VLTI. We compared the data to radiative transfer models of the dust shells, where the central stellar intensity profiles were described by dust-free dynamic model ...
Boboltz, D. A., Fossat, E., Karovicova, I., Ohnaka, K., Scholz, M., Wittkowski, M.   +5 more
core   +2 more sources

Effect of Tricalcium Magnesium Silicate Coating on the Electrochemical and Biological Behavior of Ti-6Al-4V Alloys. [PDF]

PLoS ONE, 2015
In the current study, a sol-gel-synthesized tricalcium magnesium silicate powder was coated on Ti-6Al-4V alloys using plasma spray method. Composition of feed powder was evaluated by X-ray diffraction technique before and after the coating process ...
Hossein Maleki-Ghaleh, Masoud Hafezi, Mohammadreza Hadipour, Ali Nadernezhad, Ermia Aghaie, Yashar Behnamian, Noor Azuan Abu Osman   +6 more
doaj   +1 more source

The effect of sodium silicate concentration on microstructure and corrosion properties of MAO-coated magnesium alloy AZ31 in simulated body fluid

Journal of Magnesium and Alloys, 2014
In recent years, magnesium and its alloys are considered as biodegradable implants. However magnesium implants may rapidly corrode before the natural healing process of the tissue is completed.
B. Salami, A. Afshar, A. Mazaheri
doaj   +1 more source

Corrosion resistant thermal barrier coating [PDF]

, 1981
A thermal barrier coating system for protecting metal surfaces at high temperature in normally corrosive environments is described. The thermal barrier coating system includes a metal alloy bond coating, the alloy containing nickel, cobalt, iron, or a ...
Hodge, P. E., Levine, S. R., Miller, R. A.   +2 more
core   +1 more source

Gels as battery separators for soluble electrode cells [PDF]

, 1977
Gels are formed from silica powders and hydrochloric acid. The gels are then impregnated into a polymeric foam and the resultant sheet material is then used in applications where the transport of chloride ions is desired.
Gahn, R. F., Sheibley, D. W.
core   +1 more source

Tomography of silicate dust around M-type AGB stars I. Diagnostics based on dynamical models

, 2017
The heavy mass loss observed in evolved asymptotic giant branch stars is usually attributed to a two-step process: atmospheric levitation by pulsation-induced shock waves, followed by radiative acceleration of newly formed dust grains.
Aringer, B., Bladh, S., Höfner, S., Paladini, C.   +3 more
core   +1 more source

Corrosion protection of carbon steel by an epoxy resin containing organically modified clay [PDF]

, 2007
This study focusses on the use of montmorillonite clay (MMT) treated with an organic compound (aminotrimethylphosphonic acid (ATMP)) and dispersed in an epoxy resin to improve corrosion protection of carbon steel.
Hang, To Thi Xuan, Jorcin, Jean-Baptiste, Nam, Truong Hoai, Oanh, Vu Ke, Pébère, Nadine, Truc, Trinh Anh   +5 more
core   +3 more sources

The Properties of Magnesium Silicate Hydrate Prepared from the Magnesium Silicate Minerals in the Earth’s Crust

Buildings
In order to explore a wider range and lower cost of raw materials for the preparation of magnesium silicate hydrate (M-S-H), an acid-leaching method was employed to extract and separate high-purity magnesium hydroxide (Mg(OH)2) with a purity higher than ...
Qiang Song, Qian He, Jiao Nie, Tiantian Song, Hong Zhou, Yaru Hu, Yanxin Chen, Yang Deng, Fuan Cheng   +8 more
doaj   +1 more source

ANTIMICROBIAL ACTIVITY OF EXPERIMENTAL ENDODONTIC SEALER BASED ON BIOCERAMIC NANOMATERIALS

Studia Universitatis Babes-Bolyai Chemia, 2021
. The aim of this work was to evaluate the antimicrobial effectiveness of a bioceramic experimental endodontic sealer (EES), alongside with its components.
Lucia Iacobina TIMIȘ, Maria GOREA, Carmen Anca COSTACHE, Ioana Alina COLOSI, Pavel ȘCHIOPU, Paul-Ștefan PANAITESCU, Ada DELEAN, Dinu Iuliu DUMITRASCU, Radu Septimiu CÂMPIAN   +8 more
doaj   +1 more source

Discovery of stars surrounded by iron dust in the LMC

, 2019
We consider a small sample of oxygen-rich, asymptotic giant branch stars in the Large Magellanic Cloud, observed by the Spitzer Space Telescope, exhibiting a peculiar spectral energy distribution, which can be hardly explained by the common assumption ...
Dell'Agli, F., Di Criscienzo, M., García-Hernández, D. A., Marini, E., Mattsson, L., Puccetti, S., Ventura, P.   +6 more
core   +1 more source