Fabrication of grinding tool material by the SHS of Ni–Al/diamond/dilute

Zhang, F.L.; Yang, Zican; Zhou, Yumei; Wang, C.Y.; Huang, Huiping

doi:10.1016/j.ijrmhm.2010.12.013

Cited by 12 publications

(2 citation statements)

References 23 publications

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“…Ti-B SHS was used to fabricated the multi-layered and the functional gradient diamond containing materials (FGM) [10][11][12].In our previous studies, Ni-Al SHS was also used to prepare a novel diamond grinding tool in which the compressive strength of the diamond grits was decreased about 20 % after Ni-Al SHS reaction [13]. To ease the fast propagating rate and the high temperature in the self-propagating high-temperature, a mixture of Ni-Cr-P, Cu and B powder was used as a dilute for modifying the microstructure of the reacted product Ni-Al matrix grinding tool material [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Ni-Al/diamond composite based on layered and gradient structures of SHS system

et al. 2017

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In this paper layered and gradient structures of Ni-Al SHS system were adopted to manufacture Ni-Al/diamond composites. The effect of the layered and the diamond mesh gradient structures of Ni-Al/diamond on the SHS process and the microstructure of the composites were investigated. It is found that with the increasing of the number of layers, the combustion wave velocity is decreased. The combustion wave velocity for diamond mesh size gradient structure of Ni-Al SHS is faster than that for the layered structure. A well bonding can be formed between diamond and the matrix in layered and gradient structure Ni-Al/diamond composites due to the melt of Ni-Cr brazing alloy.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Ni-Al/diamond composite based on layered and gradient structures of SHS system

et al. 2017

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“…7,8 Intermetallics of NiAl and NiAl 3 have a high melting point, a low density, high strength, good corrosion and oxidation resistance at high temperature. 9,10 The nickelaluminum system is one of the most well known in terms of the formation of intermetallic phases. This system is also a priority among laminate composite systems.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic-shielding effectiveness and fracture behavior of laminated (Ni–NiAl3) composites

Yener¹,

Yener²,

Zeytin³

2016

Mater. Tehnol.

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In this research Ni-NiAl3 multilayer composites were produced through reactive sintering in an open atmosphere using Ni and Al foils with a 250-μm initial thickness. The sintering was performed at 700°C under 2 MPa of pressure for 6 h. The microstructure and phase characterizations of the samples were performed. The hardness values of samples were determined using the Vickers indentation technique for the intermetallic and metallic regions as 765±60 HV and 90±10 HV, respectively. For the mechanical examinations, a perpendicular load was applied to the composite in order to observe the fracture behavior of the metallic-intermetallic laminate composites. SEM fracture surface analyses indicated that cracks initiated in the intermetallic region, and the crack propagation stopped when it reaches the ductile nickel phase. In addition, shielding-effectiveness measurements were performed. The MIL composite exhibits over 50 dB electromagnetic-shielding effectiveness against a very wide frequency range, from a few GHz to over 18 GHz. Keywords: intermetallics, MIL composites, fracture behavior, electromagnetic interference shielding V raziskavi so bili izdelani Ni-NiAl3 ve~plastni kompoziti z reakcijskim sintranjem na atmosferi in z uporabo Ni-in Al-folij z za~etno debelino 250 μm. Sintranje je bilo 6 h na 700°C, pri tlaku 2 MPa. Na vzorcih je bila izvedena karakterizacija mikrostrukture in faz. Trdota vzorcev je bila dolo~ena po Vickersu, 765±60 HV, za podro~ja intermetalnih faz in 90±10 HV pri osnovi. Za mehanske preiskave je bila uporabljena navpi~na obremenitev, za opazovanje obna{anja kompozita pri lomljenju kovinskih in intermetalnih lamel. SEM-preiskave prelomov so pokazale, da je za~etek razpoke v podro~ju intermetalne faze in da se {irjenje razpoke ustavi, ko pride v duktilno fazo niklja. Izvedene so bile tudi meritve u~inkovitosti za{~ite sevanja. MIL kompozit ka`e u~inkovitost pred elektromagnetnim sevanjem, vi{jo od 50 dB v zelo {irokem obmo~ju frekvenc od nekaj GHz do preko 18 GHz. Klju~ne besede: intermetalne zlitine, MIL kompoziti, obna{anje pri lomu, elektromagnetna interferen~na za{~ita

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Hybrid Ti2AlC Bonded Diamond Composites Prepared by a Self-propagation Sintering Approach

Zhang

Bian

Luo³

et al. 2019

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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Fabrication of grinding tool material by the SHS of Ni–Al/diamond/dilute

Cited by 12 publications

References 23 publications

Fabrication of Ni-Al/diamond composite based on layered and gradient structures of SHS system

Fabrication of Ni-Al/diamond composite based on layered and gradient structures of SHS system

Electromagnetic-shielding effectiveness and fracture behavior of laminated (Ni–NiAl3) composites

Hybrid Ti2AlC Bonded Diamond Composites Prepared by a Self-propagation Sintering Approach

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