Wyniki wyszukiwania - Biblioteka Nauki

Ten serwis zostanie wyłączony 2025-02-11.

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Tb0.3Dy0.7Fe1.9

Sortuj według:

Ogranicz wyniki do:

Intelligent epoxy matrix composite materials consisting of Tb0.3Dy0.7Fe1.9 magnetostrictive particulates

100%

Dobrzański L. , Wydrzyńska A. , Iesenchuk O.

Archives of Materials Science and Engineering

2009

tom Vol. 35, nr 1

33-38

Purpose: This paper presents the acceptable technology to fabricate epoxy-bonded Tb0.3Dy0.7Fe1.9 composites in an effort to produce Tb0.3Dy0.7Fe1.9 bulks with good magnetostrictive properties through the optimization of some fabrication parameters. Design/methodology/approach: Intelligent polymer matrix composite materials consisting of magnetostrictive particulates was obtained by homogenously mixing low viscosity epoxy resin and Tb0.3Dy0.7Fe1.9 powder with grains from 38 to 106 μm. The relationships among the manufacturing technology of these materials, their microstructure, as well as their magnetostriction were evaluated. Materialographic examination of powders morphology and the structure of composite materials were also made. Findings: Composite materials consisting of Tb0.3Dy0.7Fe1.9 particles can extend the possibilities of application the magnetostrictive materials and reduce the cost of their manufacturing. The obtained materials show regular distribution of Tb0.3Dy0.7Fe1.9 powder in epoxy matrix. Research limitations/implications: The advantages of the bonded magnetostrictive composite materials are their simple technology, possibility of forming their properties and lowering manufacturing costs. It is expected that the magnetostrictive properties of Tb0.3Dy0.7Fe1.9 composites presented in this work can be further improved by amelioratethe fabrication parameters. Originality/value: Manufacturing processes of intelligent epoxy matrix composite materials consisting of Tb0.3Dy0.7Fe1.9 magnetostrictive particulates.

Structure and magnetic properties of magnetostrictive Td0.3Dy0.7Fe1.9 / polyurethane composite materials

100%

Dobrzański L. A. , Tomiczek A. , Nabiałek A. , Żuberek R.

Journal of Achievements in Materials and Manufacturing Engineering

2010

tom Vol. 43, nr 2

527--532

Purpose: The aim of this work is to obtain polyurethane matrix composite materials reinforced by Tb0.3Dy0.7Fe1.9particles and to observe changes of magnetic properties and magnetostriction of samples with different particle size distributions of Tb0.3Dy0.7Fe1.9 powder. Design/methodology/approach: Polyurethane matrix composite materials reinforced by Tb0.3Dy0.7Fe1.9 magnetostrictive particles fabricating method were developed during the investigations, making possible to obtain materials with good physical properties. The influence of the concentration and powder particles size of the Td0.3Dy0.7Fe1.9 on magnetic and magnetostrictive properties were estimated. Metallographic examination of powders morphology and the structure observations of composite materials were made. Findings: Composite materials consisting of Td0.3Dy0.7Fe1.9 particles can extend the possibilities of application the magnetostrictive materials and reduce the cost of their manufacturing. The obtained materials show regular distribution of Td0.3Dy0.7Fe1.9 powder in polyurethane matrix. Research limitations/implications: The advantage of polyurethane matrix magnetostrictive composite materials are their simple technology and lowering manufacturing cost in comparison to monolithic Td0.3Dy0.7Fe1.9. These efforts can be considered as very up-to-date from the scientific point of view. Originality/value: The originality of this investigations is the statement that increasing the size of the Td0.3Dy0.7Fe1.9 particles cause increasing the strain response and this is due to the demagnetization effects.