Results 201 to 210 of about 1,438,136 (241)

Crystallization of amorphous nano-sized silicon powders

Nanostructured Materials, 1995
The crystallization phenomena of nano-sized silicon powders (∼ 20 nm) prepared by Plasma induced reaction of silane were studied using in-situ heating in vacuum (
J. Dutta, I.M. Reaney, C. Bossel, R. Houriet, H. Hofmann   +4 more
openaire   +1 more source

Formation and properties of Fe20Al80 amorphous powder

Physics Letters A, 1991
Abstract Powder samples of Fe 20 Al 80 were prepared by ball milling. The X-ray diffraction, Mossbauer effect and magnetic behavior measurements indicate that Fe and Al crystalline powders transform into Fe-Al amorphous powder directly through atom diffusion due to ball milling, the ratio of the amorphous phase in the total sample increases with the
null Genmiao Wang, null Daoyuan Zhang, null Huiyu Chen, null Bixia Lin, null Weihua Wang, null Yuanda Dong   +5 more
openaire   +1 more source

The core-shell structured Fe-based amorphous magnetic powder cores with excellent magnetic properties

Advanced Powder Technology, 2019
The Fe-based soft magnetic amorphous powder cores (AMPCs) with excellent comprehensive magnetic properties were successfully designed and fabricated using the core-shell structured FeSiBCCr/TiO2 composite powders.
Bang Zhou, Yaqiang Dong, Lei Liu, Q. Chi, Yiqun Zhang, Liang Chang, Fengqin Bi, Xin-min Wang   +7 more
semanticscholar   +1 more source

Laboratory evaluation of stone mastic asphalt containing amorphous carbon powder as filler material

, 2020
In this research the moisture susceptibility and rutting resistance Stone mastic Asphalt containing amorphous carbon powder as filler material were investigated.
A. Habibnejad Korayem, H. Ziari, Mojtaba Hajiloo, Milad Abarghooie, P. Karimi   +4 more
semanticscholar   +1 more source

Consolidation of Cu54Ni6Zr22Ti18 bulk amorphous alloy powders

Materials Science and Engineering: A, 2005
Abstract Spherical Cu54Ni6Zr22Ti18 metallic glass powders were prepared using a high-pressure gas atomizer, followed by consolidation using spark plasma sintering (SPS) process. The glass forming ability of both powders as atomized and bulks as SPSed was investigated by X-ray diffractometer (XRD) and differential scanning calorimeter (DSC) as a ...
Taek-Soo Kim, Jin-Kyu Lee, Hwi-Jun Kim, Jung-Chan Bae   +3 more
openaire   +1 more source

Phase Separation in Shock Consolidated Amorphous Powder

Proceedings, annual meeting, Electron Microscopy Society of America, 1985
During shock-wave consolidation of irregularly shaped (≌50 μm diameter) Marko-met 1064 powder (Ni55.8Mo25.7Cr9.7B8.8), obtained from melt-spun ribbon, the shock energy is preferentially input at particle surfaces. Heat flow to particle interiors is sufficiently rapid to quench melted regions and form the amorphous phase at shock energies less than ...
Naresh Thadhani, Andrew H. Mutz, T. Vreeland   +2 more
openaire   +1 more source

Magnetic Properties of Composite Amorphous Powder Cores

MRS Proceedings, 1986
AbstractComposite amorphous powder core made by field-annealing with new insulations could improve the high frequency AC magnetic and mechanical properties. All of the amorphous ribbons with composition Fe78B16Si5C and Fe40Ni38Mo4B17Si were annealed at temperature higher than their embrittlement temperature but lower than the crystallization ...
Hong-Yow Chang, Pei-Chih Yao, Der-Ray Huang, Shu-En Hsu   +3 more
openaire   +1 more source

Crystallization of amorphous Fe75Si15B10 ribbon and powder

Materials Science and Engineering, 1983
Abstract Amorphous ribbon and powder of the alloy Fe 75 Si 15 B 10 were prepared by chill casting and by spark erosion respectively. Samples of ribbon and powder were heated to temperatures corresponding to some fraction of crystallization in the differential scanning calorimeter.
J.L Walter, A.E Berkowitz, E.F Koch
openaire   +1 more source

Mechanical alloying of amorphous Al–SiO2 powders

Journal of Alloys and Compounds, 2008
Abstract Mechanical alloying (MA) of elemental Al and SiO 2 mixtures were performed under argon and air atmospheres. Amorphization has been observed in the MA process under argon atmosphere, while MA under air atmosphere the starting materials are still present.
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Consolidation of gas atomized Cu47Ti34Zr11Ni8 amorphous powders

Journal of Non-Crystalline Solids, 2003
Abstract The dense, random atomic configuration of bulk metallic glasses enhances their stability against crystallization in the supercooled liquid state. This stability provides the opportunity to deform the material by plastic processing methods such as warm extrusion.
Daniel J Sordelet, Elena Rozhkova, Matthew F Besser, Matthew J Kramer   +3 more
openaire   +1 more source