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Online since: January 2012
Authors: Song Zhang, X.L. Xu, H.G. Lv, Xiao Li Zhu
Jawaid et al. [4] concluded that severe chipping and faking of the cutting edge were reported to be the main failure modes in milling titanium alloys with carbide tools.
The aim of the experimental work was to investigate tool wear patterns and the wear mechanisms in turning Inconel 718 under the wet cutting condition.
In wet machining of nickel-based alloys, the wear and damage of cutting tools can be in various forms.
The abrasive wear is due to the presence of hard particles and impurities within the workpiece material, such as carbon, nitride, and oxide compounds, as well as, built-up fragments.
Li: Journal of Zhejiang University-Science A Vol. 8(8) (2010), p. 587-595
The aim of the experimental work was to investigate tool wear patterns and the wear mechanisms in turning Inconel 718 under the wet cutting condition.
In wet machining of nickel-based alloys, the wear and damage of cutting tools can be in various forms.
The abrasive wear is due to the presence of hard particles and impurities within the workpiece material, such as carbon, nitride, and oxide compounds, as well as, built-up fragments.
Li: Journal of Zhejiang University-Science A Vol. 8(8) (2010), p. 587-595
Online since: June 2013
Authors: Pedro Teixeira, Paulo A.F. Martins, Ana Reis, Rogério Araújo, M. Beatriz Silva
Roberto Frias 400,4200-465 Porto, Portugal
araraujo@inegi.up.pt, bpteixeira@inegi.up.pt, cbeatriz.silva@ist.utl.pt, dareis@inegi.up.pt, epmartins@ist.utl.pt
Keywords: Incremental forming, Titanium alloys, Medical applications.
The aims and objective of this paper are focused in assessing the feasibility of SPIF to produce medical parts and emphasis is put on the fabrication of a customized maxillofacial implant made from titanium (grade 2) under laboratory controlled conditions.
Conclusions This paper aimed at evaluating the potential of SPIF for producing a customized maxillofacial implant.
Martins, “On the formability of hole-flanging by incremental sheet forming”, Journal of Materials: Design and Applications, 2012 (under review)
Lemaitre, “Continuous damage mechanics model for ductile fracture”, Journal of Engineering Materials and Technology, Transactions of the ASME 107(1), pp. 83-89, 1985
The aims and objective of this paper are focused in assessing the feasibility of SPIF to produce medical parts and emphasis is put on the fabrication of a customized maxillofacial implant made from titanium (grade 2) under laboratory controlled conditions.
Conclusions This paper aimed at evaluating the potential of SPIF for producing a customized maxillofacial implant.
Martins, “On the formability of hole-flanging by incremental sheet forming”, Journal of Materials: Design and Applications, 2012 (under review)
Lemaitre, “Continuous damage mechanics model for ductile fracture”, Journal of Engineering Materials and Technology, Transactions of the ASME 107(1), pp. 83-89, 1985
Online since: May 2016
Authors: You Dan Guo
This project aims to provide references for the repair & remanufacture of die components in wear failure by studying the metallographic structure, bonding form, structural porosity, bonding strength, hardness and wear resistance of coatings in relation to the repair & remanufacture technology of die components in wear failure.
A very high speed was gained by plasma jet acceleration to atomize molten droplets or promote molten particles into a jet of particle beam, which struck at high speed the surface of die matrix to form a surface coating that had required performances and met the dimensions and quality requirements, achieving the aim of die repair & remanufacture.
NiO2 alloy has many component phases, high residual stress in the coating during setting and concentrated tensile stress, thus reducing the bonding strength between the Ni/Al under coat and the matrix.
The bonding strength between the ceramic phase and the under coat (Ni/Al) is smaller than that between the under coat (Ni/Al) and alloy coating (NiO2), metal coating (Ni/Al2O3) and die matrix.
Chen, S.Ni, et al, Phase formation regularites of ultrafine TiAl NiAl and FeAl 5intermetallic compound powers during solid-liquid reaction milling, Journal of Alloys and Compounds. 457(2008)292-295 [6] X.L.
A very high speed was gained by plasma jet acceleration to atomize molten droplets or promote molten particles into a jet of particle beam, which struck at high speed the surface of die matrix to form a surface coating that had required performances and met the dimensions and quality requirements, achieving the aim of die repair & remanufacture.
NiO2 alloy has many component phases, high residual stress in the coating during setting and concentrated tensile stress, thus reducing the bonding strength between the Ni/Al under coat and the matrix.
The bonding strength between the ceramic phase and the under coat (Ni/Al) is smaller than that between the under coat (Ni/Al) and alloy coating (NiO2), metal coating (Ni/Al2O3) and die matrix.
Chen, S.Ni, et al, Phase formation regularites of ultrafine TiAl NiAl and FeAl 5intermetallic compound powers during solid-liquid reaction milling, Journal of Alloys and Compounds. 457(2008)292-295 [6] X.L.
Online since: June 2015
Authors: Vânia Caldas Sousa, Sergio Cava, Tiago Delbrücke, Jose R. Jurado, Sergio M. Tebcheranic, Evaldo T. Kubaski, Rogério A. Gouvêa, Cristiane W. Raubach, Mário Lúcio Moreira, Elson Longo
Edirisinghe: Journal of Materials Science Vol. 35 (2000), p. 4365
Abbott: Journal of Applied Physics Vol. 32 (1961), p. 1679
Yeshurun: Journal of Alloys and Compounds Vol. 423 (2006), p. 102
Wang: Journal of Applied Physics Vol. 52 (1981), p. 956
Scardi: Journal of Solid State Chemistry Vol. 86 (1990), p. 263
Abbott: Journal of Applied Physics Vol. 32 (1961), p. 1679
Yeshurun: Journal of Alloys and Compounds Vol. 423 (2006), p. 102
Wang: Journal of Applied Physics Vol. 52 (1981), p. 956
Scardi: Journal of Solid State Chemistry Vol. 86 (1990), p. 263
Online since: April 2012
Authors: Aemi Nadia, A.S.M. Abdul Haseeb
Cu nanoparticle (Sigma Aldrich, 40 nm, 99% purity) was mixed by ball milling with Sn-3.5Ag solder powder (AIM Solder, 30-40 µm, purity 99.9%) at room temperature.
Li: Journal of Applied Physics Vol. 93 (2003), p.1335
Liu: Journal of Alloys and Compounds Vol. 462 (2008), p.73
Tu: Journal of Electronic Materials Vol. 30 (2001), p. 521
Sanchez: Journal of Electronic Materials.
Li: Journal of Applied Physics Vol. 93 (2003), p.1335
Liu: Journal of Alloys and Compounds Vol. 462 (2008), p.73
Tu: Journal of Electronic Materials Vol. 30 (2001), p. 521
Sanchez: Journal of Electronic Materials.
Online since: March 2020
Authors: Maha El-Meligy, Taher El-Bitar
Titanium was used mainly for high nitrogen content liquid steel, while vanadium was favorably used for medium carbon steel alloys (rebar grades).
The alloys were subjected to several passes of continuous rolling with finish rolling temperature above 900 oC, and followed by thermo- mechanical treatment.
Optimum pass design by using computer modeling was aiming to generate a uniform fine austenite microstructure and subsequently a finer ferrite grain size.
These effects are present up to 1200°C and beyond, when Nb compounds are almost completely dissolved for most compositions of micro-alloyed steels [20, 21] .
Guo, "thermomechanical processing of ferrous alloys," in The Deformation and Processing of Structural Materials, Boca Raton,USA, CRC press, 2005, pp. 76-125
The alloys were subjected to several passes of continuous rolling with finish rolling temperature above 900 oC, and followed by thermo- mechanical treatment.
Optimum pass design by using computer modeling was aiming to generate a uniform fine austenite microstructure and subsequently a finer ferrite grain size.
These effects are present up to 1200°C and beyond, when Nb compounds are almost completely dissolved for most compositions of micro-alloyed steels [20, 21] .
Guo, "thermomechanical processing of ferrous alloys," in The Deformation and Processing of Structural Materials, Boca Raton,USA, CRC press, 2005, pp. 76-125
Online since: February 2015
Authors: Srimala Sreekantan, Khairul Arifah Saharuddin
The aim was to investigate the effect of annealing atmospheres on the photocatalytic properties of the TiO2 nanotubes for both samples.
Liu, Journal of Materials Chemistry, 20 (2010) 5993-6008
Raja, Journal of Catalysis, 246 (2007) 362-369
Sreekantan, Journal of alloys and compounds, 547 (2013) 43-50
Zhu, Chemical Engineering Journal, 180 (2012) 151-158
Liu, Journal of Materials Chemistry, 20 (2010) 5993-6008
Raja, Journal of Catalysis, 246 (2007) 362-369
Sreekantan, Journal of alloys and compounds, 547 (2013) 43-50
Zhu, Chemical Engineering Journal, 180 (2012) 151-158
Online since: March 2010
Authors: Viboon Sricharoenchaikul, Duangdao Aht-Ong, Duangduen Atong, Kanit Soongprasit
Introduction
Perovskite-type mixed oxide have been studied for many application especially steam reforming of
hydrocarbon compound.
Moreover, Ce can accelerate water-gas shift reaction which products is fuel gas, H2, and promote gasification reaction of carbon compound [6].
The aim of this research is the synthesis of La1-xCexNiO3 (x= 0-0.4) perovskite-type oxides by sol-gel process via PVA as complexing agent.
On the other hand, PVA increased porosity and surface area of perovskite-type oxides which promoted oxidation reaction with hydrocarbon compound.
Zhou, et al.: Journal of Alloys and Compounds.
Moreover, Ce can accelerate water-gas shift reaction which products is fuel gas, H2, and promote gasification reaction of carbon compound [6].
The aim of this research is the synthesis of La1-xCexNiO3 (x= 0-0.4) perovskite-type oxides by sol-gel process via PVA as complexing agent.
On the other hand, PVA increased porosity and surface area of perovskite-type oxides which promoted oxidation reaction with hydrocarbon compound.
Zhou, et al.: Journal of Alloys and Compounds.
Online since: January 2021
Authors: Rie Shimanouchi, Yuhei Matsumoto
Introduction
In recent years, numerous compounds containing aluminum with unique electrical properties have attracted considerable attention owing to their practical use in devices for solving various environmental and energy problems [1-4].
One such compound is Al2(WO4)3 with a Sc2(WO4)3-type crystal structure, famous for exhibiting trivalent ionic conductivity [5-7].
In this investigation, we focused on two types of aluminum compounds, Al2(WO4)3 and AlNbO4, with the aim of synthesizing them as fine powder materials, focusing on hydrothermal synthesis, and clarifying how the doping of each metal ion affects its electrical properties.
Alloys Compd. 526 (2012) 110–115
Carvalho, Journal of Molecular Catalysis A: Chemical 422 (2016) 122–130
One such compound is Al2(WO4)3 with a Sc2(WO4)3-type crystal structure, famous for exhibiting trivalent ionic conductivity [5-7].
In this investigation, we focused on two types of aluminum compounds, Al2(WO4)3 and AlNbO4, with the aim of synthesizing them as fine powder materials, focusing on hydrothermal synthesis, and clarifying how the doping of each metal ion affects its electrical properties.
Alloys Compd. 526 (2012) 110–115
Carvalho, Journal of Molecular Catalysis A: Chemical 422 (2016) 122–130
Online since: May 2012
Authors: Kazuki Nomoto, Tohru Nakamura, Naoki Kaneda, Toshihiro Kawano, Tadayoshi Tsuchiya, Tomoyoshi Mishima
., 3550 Kidamari, Tsuchiura, Ibaraki 300-0026 Japan
akazuki.nomoto.nt@hosei.ac.jp, btohru@hosei.ac.jp, cmishima.tomoyoshi@hitachi-cable.co.jp
Keywords: Gallium compounds, power semiconductor devices, p-n junctions, high-temperature electronics.
In addition, we aimed to reduce the reverse leakage current and to raise the breakdown voltage using the unique field plate (FP) structure [5].
A specific contact resistance of 1.2×10-3 Ω·cm2 was obtained without a contact alloying.
Consequently, we aimed to reduce the reverse leakage current and to get a better breakdown voltage using the FP structure.
Seki, “Grouwth and characterization of freestanding GaN substrates”, Journal of Crystal Growth, vol. 237-239, part 2, pp. 912-921 (2002) [4] Y.
In addition, we aimed to reduce the reverse leakage current and to raise the breakdown voltage using the unique field plate (FP) structure [5].
A specific contact resistance of 1.2×10-3 Ω·cm2 was obtained without a contact alloying.
Consequently, we aimed to reduce the reverse leakage current and to get a better breakdown voltage using the FP structure.
Seki, “Grouwth and characterization of freestanding GaN substrates”, Journal of Crystal Growth, vol. 237-239, part 2, pp. 912-921 (2002) [4] Y.