نتایج جستجو برای: silicates

تعداد نتایج: 5604  

Journal: :Journal of Materials Research 2021

Thin films of platinum deposited by physical vapor deposition (PVD) processes such as evaporation and sputtering are used in many academic industrial settings, for example to provide metallization when tolerance corrosive thermal cycling is desired, or electrocatalysis research. In this review, various practical considerations (Pt) on both Si SiO2 placed context with a comprehensive data review...

Journal: :Fizika tverdogo tela 2023

It was established that at 298 K the molar heat capacity of alkali metal silicates 2 O· nSiO , Rb and Cs changes linearly when changing n from 1 to 4. Based on dependencies C o p,298 =f(n), values capacities O, O have been specified. Keywords: capacity, oxides metals.

2009
L. E. Kirkland K. C. Herr P. M. Adams

Introduction: Craters made by nuclear detonations at the Nevada Test Site (NTS) provide unique test beds for cratering processes and remote detection of the geologic materials present [1,2,3,4]. Here we present results of a remote sensing study that detected an unusual infrared spectral signature at Schooner crater. The signature matches an unusually fine tectosilicate. The deposits are present...

Journal: :Occupational and environmental medicine 1997
E Monsó A Carreres J M Tura J Ruiz J Fiz C Xaus M Llatjós J Morera

OBJECTIVES The diagnostic implications of finding non-fibrous inorganic particles in bronchoalveolar lavage (BAL) fluid has not been fully assessed. The aim of this study has been to measure the silica and non-fibrous silicates in BAL fluid from populations with different exposures to inorganic dust, and to find whether such measurement is useful for diagnostic purposes. MATERIALS AND METHODS...

2001
F. Kemper

Infrared Space Observatory (ISO) observations have shown that O-rich Asymptotic Giant Branch (AGB) stars exhibit crystalline silicate features in their spectra only if their mass-loss rate is higher than a certain threshold value. Usually, this is interpreted as evidence that crystalline silicates are not present in the dust shells of low mass-loss rate objects. In this study, radiative transfe...

2014
Thomas Eagar

Inorganic adhesives have several benefits over traditional joining methods for joining electrical steels used in magnetic cores of numerous industrial applications. As insulators with very high melting temperatures, the adhesives offer the possibility of increasing the efficiency of these machines. The aim of this project was to characterize sodium silicates as adhesives for such applications a...

2006
C. I. Rio

A SOT.U~ON containing fluoride (0.4 N NH4F, 0.1 br HC1, ~ NH4C1), pcrmi~ the concentration of dioctahedral mica end dioctahedral vermiculite in mixed clay systems. AUophane, haUoysite, kaolinite, and in particular, Mg-rich montmorfllonite, biotite, and vermiculite of clay size, are destroyed in 24-48 hr at room temperature. A salt-free, NH4-saturated sample, weighing 80 mg, is shaken in 80 ml o...

2009
Gordon E. Brown Pablo García Del Real

The main purpose of this exploratory project is to develop a more fundamental understanding of the long-term sequestration of CO2 via mineral carbonation reactions involving the common Mg-silicates in serpentinite and basalt mineral assemblages. Past experimental studies have shown that these reactions are kinetically limited, so we are exploring ways to enhance their kinetics, including the us...

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