Results 11 to 20 of about 31,093 (293)

Nitrogen Diffusion in Calcite

open access: yesGeophysical Monograph Series, Page 97-104., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Daniele Cherniak   +2 more
wiley  

+18 more sources

Effect of FeSi Alloy Additions and Calcium Treatment on Non-Metallic Inclusions in 304 Stainless Steel during AOD and LF Refining Process

open access: yesMetals, 2022
Non-deformable inclusions are detrimental to the surface quality and mechanical properties of stainless-steel plates. Plant trials were conducted to investigate the effect of different ferrosilicon alloys and calcium treatment during argon oxygen ...
Jun Zhai   +4 more
doaj   +1 more source

Dust Properties of Comets Observed by Spitzer

open access: yesThe Planetary Science Journal, 2023
As comets journey into the inner solar system, they deliver particulates and volatile gases into their comae that reveal the most primitive materials in the solar system.
David E. Harker   +3 more
doaj   +1 more source

Did silicon aid in the establishment of the first bacterium? [PDF]

open access: yes, 2003
Silicic acid increased numbers of both aerobic and facultatively anaerobic bacteria in ultrapure water incubated under strict oligotrophic conditions; soil extracts acted as the bacterial inoculum. The results are discussed in relation to the possibility
Al-Wajeeh, K.   +3 more
core   +1 more source

Nanocomposite organomineral hybrid materials. Part 3

open access: yesНанотехнологии в строительстве, 2016
The paper addresses the issues of alkoxide method of sol-gel synthesis and non-hydrolytic method of sol-gel synthesis and colloidal method of sol-gel synthesis.
KUDRYAVTSEV Pavel Gennadievich   +1 more
doaj   +1 more source

The iron-containing electric-furnace steelmaking waste: physical and chemical properties and acidic modification [PDF]

open access: yesE3S Web of Conferences, 2019
The electric furnace steelmaking dust is formed at melting metalized pellets in electric-arc steel-making furnaces and is a largetonnage waste. It contains such elements as Fe, Mg, Al, C, Si, Zn, Mn, Na.
Sverguzova Svetlana   +3 more
doaj   +1 more source

Combined evaluation of oscillatory rheometry and isothermal calorimetry for the monitoring of hardening stage of Portland cement compositions blended with bauxite residue from Bayer process generated in different sites in Brazil

open access: yesRevista IBRACON de Estruturas e Materiais, 2021
Bauxite residue (BR), a by-product of alumina and aluminum production, consists of high aluminum, silica, and iron content, and sodium from the bauxite ore digestion during the Bayer process.
Roberto Cesar de Oliveira Romano   +6 more
doaj   +1 more source

Advances in technology of soluble cores for die castings [PDF]

open access: yes, 2015
A number of technologies is developed that substitute simple metal cores in the high-pressure casting technology. Soluble cores, namely on the salt basis, represent the highest prospect.
Adámková, Eliška   +3 more
core   +1 more source

Portable and Raman imaging usefulness to detect decaying on mortars from Punta Begoña Galleries (Getxo, North of Spain) [PDF]

open access: yes, 2016
Punta Begoña Galleries were built in 1918 in Getxo (Basque Country, North of Spain) but were abandoned in 1960. Nowadays, their conservation state is very poor.
Arana Momoitio, Gorka   +6 more
core   +3 more sources

Enhancement of alkali-activated slag cement concretes crack resistance for mitigation of steel reinforcement corrosion [PDF]

open access: yesE3S Web of Conferences, 2020
The paper is devoted to mitigation of steel reinforcement corrosion in alkali-activated slag cement (further, AASC) concretes, based on soluble sodium silicates (further, SSS’s), obtained from high consistensy concrete mixes.
Krivenko Pavlo   +4 more
doaj   +1 more source

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