Results 1 to 10 of about 480,771 (118)

Two-phase mixture of iron–nickel–silicon alloys in the Earth’s inner core

open access: yesCommunications Earth & Environment, 2021
The Earth’s inner core comprises iron-nickel alloys with light elements. However, there is no clarity on the phase properties of these alloys. Here we show phase relations and equations of state of iron–nickel and iron–nickel–silicon alloys up to 186 ...
Daijo Ikuta, Eiji Ohtani, Naohisa Hirao
doaj   +2 more sources

Shellac Gum/Carrageenan Alginate-Based Core–Shell Systems Containing Peppermint Essential Oil Formulated by Mixture Design Approach

open access: yesGels, 2021
Peppermint essential oil is encapsulated by inverse ionotropic gelation in core–shell systems, composed of alginate (ALG) alone or alginate with shellac gum (SHL) and/or carrageenan (CRG).
Andrea Foglio Bonda   +4 more
doaj   +3 more sources

Influence the Composition of the Core Mixture to the Occurrence of Veinings on Castings of Cores Produced by Cold-Box-Amine Technology [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The main problem in the cores production by cold-box method is the occurence of surface defects due to the tension generated by thermal expansion of the silica sand.
P. Delimanová   +3 more
doaj   +1 more source

Destruction investigation of foundry sand-liquid-glass cores under compression

open access: yesЛитьë и металлургия, 2023
Foundry sand cores based on organic binders have required tensile, compressive, and bending breaking points, as well as have an excellent knocking‑out ability.
Y. I. Gutko, V. V. Voytenko
doaj   +1 more source

Improvement of Mechanical Properties of Cast Ceramic Cores Based on Ethyl Silicate [PDF]

open access: yesArchives of Foundry Engineering, 2022
The aim of the paper is experimental verification of the influence of the composition of the ceramic mixture on the mechanical properties of cast ethyl silicate cores.
P. Bořil   +3 more
doaj   +1 more source

Physical and Chemical Fundamentals of Sodium Phosphate Use in Foundry Production

open access: yesФізика і хімія твердого тіла, 2020
The technology of synthesis of inorganic binder material based on sodium tripolyphosphate Na5P3O10 and orthophosphoric acid has been developed. The sequence of physicochemical transformations in this system, as well as the optimal mass ratio of ...
M.V. Tyshkovets   +3 more
doaj   +1 more source

The Role of Acid Hardener on the Hardening Characteristics, Collapsibility Performance, and Benchlife of the Warm-Box Sand Cores [PDF]

open access: yesArchives of Foundry Engineering, 2023
The heat-cured core-making process has been applied for over 60 years to produce molds and cores for different types of castings. The following technologies can be classified into the terminology of “heat-cured coremaking process”: croning-, hot-box ...
I. Budavári, H. Hudák, G. Fegyverneki
doaj   +1 more source

. Increasing the efficiency of casting manufacture in small-scale and single-unit production

open access: yesЛитьë и металлургия, 2020
Foundry is a multidisciplinary industry of engineering, providing cast blanks from various metals and alloys. The seriality of production has a great impact on the efficiency and quality of the castings being received. Single-unit and small-scale foundry
M. A. Sadokha, S. L. Rovin
doaj   +1 more source

Foundry Core Mixtures with Orthophosphoric Acid and Different Aluminum-Containing Compounds

open access: yesФізика і хімія твердого тіла, 2020
The scientific and practical issues of the development of core mixtures for foundry, based on phosphate binding materials, are considered. The binder presented in this article differ from those previously known by the fact that scarce prepared metal ...
R. V. Liutyi   +2 more
doaj   +1 more source

Estimation of 5G Core and RAN End-to-End Delay through Gaussian Mixture Models

open access: yesComputers, 2022
Network analytics provide a comprehensive picture of the network’s Quality of Service (QoS), including the End-to-End (E2E) delay. In this paper, we characterize the Core and the Radio Access Network (RAN) E2E delay of 5G networks with the Standalone (SA)
Diyar Fadhil, Rodolfo Oliveira
doaj   +1 more source

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