SYNTHESIS AND PHYSICAL PROPERTIES OF  RuSr2GdCu2O8

The synthesis and physical characterization of single phase polycrystalline samples with composition RuSr 2 GdCu 2 O 8 has been performed. We report on the electrical and magnetic measurements carried out in order to investigate and relate the properties of this compound subjected to different annealing routes. We show that while intrinsic properties as T c and structural properties as lattice parameters remain unchanged, the physical properties are strongly affected by the final annealing in flowing Oxygen. Coexistence of superconductivity and ferromagnetism is observed in all specimens studied, while Meissner effect visibility is induced by the annealing process.

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Fabrication and characterization of freestanding NiMnGa films

MRS Proceedings ◽

10.1557/proc-785-d7.2 ◽

2003 ◽

Vol 785 ◽

Cited By ~ 1

Author(s):

Holger Rumpf ◽

Corneliu Craciunescu ◽

Jürgen Feydt ◽

Achim Gilles ◽

Manfred Wuttig ◽

...

Keyword(s):

Thermal Annealing ◽

Magnetic Measurements ◽

Annealing Process ◽

Rapid Thermal Annealing Process ◽

Scanning Calorimetry ◽

Rapid Annealing ◽

Thermal Annealing Process ◽

Ferromagnetic Hysteresis ◽

Post Deposition

ABSTRACTFreestanding Ni50Mn30Ga20 films of 13 μm thickness were fabricated by DC magnetron sputtering and analyzed. Magnetic measurements revealed the influence of the post deposition rapid thermal annealing process on the ferromagnetic hysteresis. Ferromagnetic properties evolved after annealing at 400°C. Thermal annealing of at least 600°C led to polycrystalline films that transformed reversibly and martensitically as shown by structural analysis and differential scanning calorimetry. Transformation temperatures and enthalpies of transformation of the martensitic transformation were strongly influenced by the temperature of the rapid annealing process. It is proposed that the annealing data reflect the evolution of the crystalline state.

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Magnetic Properties of Pb2Sr2Eu1-xCaxCu308+z Superconductors

MRS Proceedings ◽

10.1557/proc-169-1077 ◽

1989 ◽

Vol 169 ◽

Author(s):

C.D. Nelson ◽

W.P. Pratt ◽

P.P. Vaishnava

Keyword(s):

Magnetic Properties ◽

Transition Temperature ◽

Single Phase ◽

Magnetic Measurements ◽

Meissner Effect ◽

Impurity Phase ◽

Squid Magnetometer ◽

Shielding Effect ◽

X Ray Diffraction ◽

X Ray

AbstractX-ray diffraction and magnetic measurements using a SQUID magnetometer have been performed on the title compounds for 0 ≤ x ≤ 0.9. For 0 ≤ x ≤ 0.5, we have single phase materials. However, a small percentage of an impurity phase is noticed in the x = 0.7 sample, and the x = 0.9 sample is clearly not a single phase material. The transition temperature, the diamagnetic-shielding effect, and the Meissner-effect increase as x becomes larger. We have obtained, approximately, Hc1 ≤ 700 oe and Hc2 ≥ 800 k0e.

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Extraction and characterization of palm fibers and their use to produce wool- and polyester-blended nonwovens

Journal of Industrial Textiles ◽

10.1177/1528083719877007 ◽

2019 ◽

pp. 152808371987700 ◽

Cited By ~ 1

Author(s):

Laila Sajid ◽

Oussama Azmami ◽

Zakia El ahmadi ◽

Abbès Benayada ◽

Said Gmouh

Keyword(s):

Thermal Conductivity ◽

Tensile Strength ◽

Thermal Properties ◽

Chemical Composition ◽

Physical Properties ◽

Structural Properties ◽

Surface Density ◽

Air Permeability ◽

Mechanical And Physical Properties

The aim of this work is the production of new nonwovens materials based on wool, polyester and palm fibers ( Washingtonia). The extraction of palm fibers was achieved by the combination of alkaline and bleaching treatments. Chemical composition, mechanical and physical properties of the extracted fibers were first determined. Then, two types of blended nonwovens based on Palm/Wool (P/W) and Palm/Polyester (P/PES) mixtures were produced using the needling technique. The physical and structural properties of produced nonwovens were studied such as surface density, tensile strength, porosity and thermal properties. The results showed that the porosity lies between 83.81% and 86.93% for (P/W) mixtures and between 78.01% and 86.93% for (P/PES) mixtures. The air permeability was found to be between 61.56 m3.m−2.min−1 and 129.01 m3.m−2.min−1 for P/W blend nonwovens and between 22.75 m3.m−2.min−1 and 129.01 m3.m−2.min−1 for P/PES blend ones. The thermal conductivity varies between 36.45 mW/m.K and 43.88 mW/m.K for P/W nonwovens and between 36.45 mW/m.K and 47.70 mW/m.K for P/PES nonwovens. Moreover, the tensile strength of blended nonwovens is found to be higher than that of non-blended ones.

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Synthesis and characterization of novel pigments derived from Red Lake C

Pigment & Resin Technology ◽

10.1108/prt-12-2017-0105 ◽

2019 ◽

Vol 48 (5) ◽

pp. 383-388 ◽

Cited By ~ 1

Author(s):

Wael M.A. Abdelmaksoud ◽

Mohamed M.M. Aboaly ◽

Said M. Taleb

Keyword(s):

Physical Properties ◽

Magnetic Measurements ◽

Good Alternative ◽

Content Type ◽

H Nmr ◽

Red Lake ◽

Coated Papers ◽

American Standard ◽

Solid Compounds

Purpose The purpose of this study is to prepare new pigments derived from Red Lake C (RLC) to be applied in the inks industry and to identify their chemical nature, as well as their physical properties. Design/methodology/approach A number of pigments that could be applied in special printing were prepared via the reactions of RLC with appropriate Ni(II) and Zn(II) salts in aqueous and ethanolic solutions. The obtained pigments were prepared as solid compounds and characterized using different instrumental analysis such as Ultraviolet-Visible, Fourier Transform Infrared Spectroscopy, 1H NMR spectra and magnetic measurements. The physical properties of these pigments were investigated using “American Standard Testing Methods” (ASTM). After that, the pigments were applied in ink formulations to test their performance and open the way to their real applications in the printing inks industry. Findings The results of this work revealed that the performance of the new prepared pigments is closer to the performance of the commercial pigments which are already used in ink industry. Research limitations/implications Red lake C, as well as the new pigments, can be applied in other different industries such as coated papers, crayons, rubber and baking enamels. Originality/value The prepared pigments will be economically feasible and a good alternative to the original expensive commercial pigments which are already used in the inks industry.

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The microscopic determination of structural properties for the characterization of optical uniaxial natural and synthetic gemstones

The Journal of Gemmology ◽

10.15506/jog.1991.22.8.471 ◽

1991 ◽

Vol 22 (8) ◽

pp. 471-482 ◽

Cited By ~ 5

Author(s):

Lore Kiefert ◽

Karl Schmetzer

Keyword(s):

Structural Properties ◽

Natural And Synthetic

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COPPER ALLOY No. 230

Alloy Digest ◽

10.31399/asm.ad.cu0252 ◽

1972 ◽

Vol 21 (3) ◽

Keyword(s):

Fracture Toughness ◽

Corrosion Resistance ◽

Shear Strength ◽

High Temperature ◽

Physical Properties ◽

Tensile Properties ◽

Copper Alloy ◽

Single Phase ◽

Heat Treating ◽

Temperature Performance

Abstract COPPER ALLOY No. 230 is a single-phase brass containing 15% zinc which is the most widely used of the low zinc brasses. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness and creep. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-252. Producer or source: Brass mills.

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COLUMBIUM 15W-5Mo-1Zr

Alloy Digest ◽

10.31399/asm.ad.cb0017 ◽

1969 ◽

Vol 18 (12) ◽

Keyword(s):

High Temperature ◽

Physical Properties ◽

Tensile Properties ◽

Structural Properties ◽

Base Alloy ◽

Heat Treating ◽

Temperature Performance

Abstract Columbium 15W-5 Mo- 1Zr is a columbium-base alloy capable of retaining usuable structural properties up to 2500 F. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: Cb-17. Producer or source: Fansteel Metallurgical Corporation.

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