Phasenbildung in Ni/Si‐Schichten

Beck, Ulrich; Neumann, Hava; Becherer, G.

doi:10.1002/crat.19730081005

Cited by 9 publications

(5 citation statements)

References 10 publications

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“…The lattice parameters of (Si), SiC, ␤ 1 , ␥, ␦, , NiSi, and NiSi 2 calculated from the ternary alloys agree well with those for the pure binary phases. [20,[35][36][37][38][39][40] Thus, ternary solubilities in these phases are presumably negligible. This confirms the findings of Brukl.…”

Section: њG Fccmentioning

confidence: 98%

Experimental investigations and thermodynamic descriptions of the Ni-Si and C-Ni-Si systems

Du¹,

Schuster²

1999

Metall Mater Trans A

106

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The binary Ni-Si phase diagram is reassessed and a consistent set of thermodynamic parameters is obtained based on literature data which we could verify experimentally (15 samples involving arc melting, annealing, water quenching, X-ray diffraction (XRD), and differential thermal analysis (DTA)). Applying this description of the Ni-Si system, as well as the descriptions of the Ni-C and Si-C systems available from the literature, preliminary calculations for the C-Ni-Si phase equilibria were made in order to provide guidance in selecting the compositions of decisive ternary alloys. These alloys were subjected to an experimental procedure similar to that employed for the Ni-Si alloys. The XRD and DTA measurements resulting from these ternary alloys provided accurate information on the invariant reaction temperatures in the C-Ni-Si system. Comprehensive comparisons between calculated and measured phase diagrams show that most of the experimental information is satisfactorily accounted for by the present description of the C-Ni-Si system. The liquidus projection and reaction scheme for the whole ternary system are presented.

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Section: њG Fccmentioning

confidence: 98%

Experimental investigations and thermodynamic descriptions of the Ni-Si and C-Ni-Si systems

Du¹,

Schuster²

1999

Metall Mater Trans A

106

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“…The corresponding slope changes of Fig. l c (21.5 a t % Ni content) lie at 400, 560, and 500 "C. This shows the effect, that with higher nickel content the formation temperature of a distinct silicide is lowered [3].…”

Section: Amorphous Silicon-nickel Film Combinationsmentioning

confidence: 74%

Structure and intrinsic stress of nickel silicide films

Koos

Beck

Neumann

1976

Phys. Stat. Sol. (a)

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Stress measurements on nickel silicide films formed by the reaction of evaporated nickel films with both amorphous and monocrystalline silicon substrates are presented. By comparison with structural investigations it is shown that the formation of the silicides in the films is connected with stress changes. These stress changes are given for several silicides.Es werden Spannungsmessnngen an Nickelsilizidschichten vorgestellt, die durch Reaktion von aufgedampften Nickelschichten sowohl mit amorphen 81s auch mit einkristallinen Siliziumsubstraten entstanden sind. Der Vergleich mit Strukturuntersuchungen zeigt, daB die Bildung der Silizide in den Schichten mit Spannungsiinderungen verbunden ist. D i m werden fur einige Silizide angegeben.

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“…The EBSD patterns were indexed by the Pm-3m auricupride (AuCu3)-type structure and give a best fit to the synthetic Ni3Si cells from Lashko (1951), Beck et al (1973) and Ochiai et al (1984) (Fig. 4), with a mean angular deviation of 0.30º -0.35º, revealing the following cell parameters: cubic, a = 3.51(1) Å, space group: Pm-3m, V = 43.2(4) Å 3 , Z = 1.…”

Section: Occurrence Chemistry and Crystallographymentioning

confidence: 99%

“…Single-crystal electron backscatter diffraction (EBSD) analyses were performed at Caltech using methods described in Rossman (2008, 2009 (Lashko, 1951;Toman, 1952;Beck et al, 1973;Ochiai et al, 1984, Rabadanov andAtaev 2002;Schuette et al, 2003;Perez et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Carletonmooreite, Ni3Si, a new silicide from the Norton County aubrite meteorite

Garvie

Ray

et al. 2021

American Mineralogist

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Carletonmooreite (IMA 2018-68), Ni3Si, is a new nickel silicide mineral that occurs in metal nodules from the Norton County aubrite meteorite. These nodules are dominated by low-Ni iron (kamacite), with accessory schreibersite, nickelphosphide, perryite, and minor daubréelite, tetrataenite, taenite, and graphite. The chemical composition of the holotype carletonmooreite determined by wavelength-dispersive electron-microprobe analysis is (wt%) Ni 82.8 ± 0.4, Fe 4.92 ± 0.09, and Si 13.08 ± 0.08 (n = 6, total = 100.81) giving an empirical formula of (Ni2.87Fe0.18)Σ3.05Si0.95, with an end-member formula of Ni3Si. Further grains discovered in the specimen after the new mineral submission extend the composition, i.e., (wt%) Ni 81.44 ± 0.82, Fe 5.92 ± 0.93, Cu 0.13 ± 0.02, and Si 13.01 ± 0.1 (n = 11, total = 100.51 ± 0.41), giving an empirical formula (Ni2.83Fe0.22Cu0.004)Σ3.05Si0.95. The backscat tered electron-diffraction patterns were indexed by the Pm3m auricupride (AuCu3)-type structure and give a best fit to synthetic Ni3Si, with a = 3.51(1) Å, V = 43.2(4) Å3, Z = 1, and calculated density of 7.89 g/cm3. Carletonmooreite is silver colored with an orange tinge, isotropic, with a metallic luster and occurs as euhedral to subhedral crystals 1 × 5 µm to 5 × 14 µm growing on tetrataenite into kamacite. The dominant silicide in the Norton County aubrite metal nodules is perryite (Ni,Fe)8(Si,P)3, with carletonmooreite restricted to localized growth on rare plessite fields. The isolated nature of small euhedral carletonmooreite single crystals suggests low-temperature growth via solid-state diffusion from the surrounding kamacite and epitaxial growth on the tetrataenite. This new mineral is named in honor of Carleton B. Moore, chemist and geologist, and founding director of the Center for Meteorite Studies at Arizona State University, for his many contributions to cosmochemistry and meteoritics.

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Phasenbildung in Ni/Si‐Schichten

Cited by 9 publications

References 10 publications

Experimental investigations and thermodynamic descriptions of the Ni-Si and C-Ni-Si systems

Experimental investigations and thermodynamic descriptions of the Ni-Si and C-Ni-Si systems

Structure and intrinsic stress of nickel silicide films

Carletonmooreite, Ni3Si, a new silicide from the Norton County aubrite meteorite

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