The Crystal Structure of Ni3P.(Fe3P-Type).

Aronsson, B.; Dale, Johannes; Risberg, Eilif; Lamm, Ole

doi:10.3891/acta.chem.scand.09-0137

Cited by 51 publications

(15 citation statements)

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“…Rietveld crystal structure refinement of the powder data revealed that the crystal structure of the synthetic nickelphosphide analogue is of the same type as the structure of the hypothetical endmembers of the shreibersite-nickelphosphide solid solution À Fe 3 P (Rundquist, 1962) and Ni 3 P (Aronsson, 1955;Rundquist et al, 1962). Comparing several models with different siteoccupancies of Fe and Ni in crystallographically non-equivalent sites within the structure of nickelphosphide, it appears that individual sites prefer certain atoms as already noted in some previous single-crystal structure refinements for meteoritic schreibersites by, e.g.…”

Section: Discussionmentioning

confidence: 98%

“…The starting models of the structure were derived from published single-crystal data for Ni 3 P (Aronsson, 1955;Rundquist et al, 1962), Fe 3 P (Rundquist, 1962), and meteoritic schreibersite (Doenitz, 1968 and1970 u.). Data for natural nickelphosphide from the Vicenice octahedrite (a) are compared to its two synthetic counterparts P-43 (b) and P-44 (c).…”

Section: Crystal Structure Datamentioning

confidence: 99%

See 1 more Smart Citation

Nickelphosphide from the Vicenice octahedrite: Rietveld crystal structure refinement of a synthetic analogue

Skála¹,

Drábek²

2003

Mineral. mag.

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ABSTR ACTThe original description of nickelphosphide from the Butler meteorite [(Ni 1.83 Fe 1.21 ) S3.04 P 0.96 to (Ni 1.71 Fe 1.28 Co 0.01 ) S3.00 P 1.00 ] lacks detailed and accurate powder data À with only 11 observed reflections down to 1.37 Å . Consequently, no crystal structure information for this phase is available. Here we present the crystal structure for a synthetic analogue of the phase found in the Vicenice IID medium octahedrite (with a mean empirical formula of (Ni 1.69 Fe 1.31 ) S3.00 P 1.00 ) and a hypothetical Ni 3 P end-member. Unit-cell dimensions of the synthetic analogue of Ni 1.68 Fe 1.33 P 0.99 composition from individual peak profile fitting of XRD data collected with Cu radiation are a = 9.0168(2) Å , c (8) Å 3 . The space group of the mineral is I4 and Z = 8. The crystal structure refined from powder data by the Rietveld method is consistent with that refined and published for Fe 3 P and Ni 3 P synthetic compounds as well as Fe-dominant schreibersite from single-crystal data. However, because of the similarity of the scattering of iron and nickel, we were not able to refine directly the site occupancies in the synthetic analogue of the nickelphosphide from the Vicenice iron meteorite.

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Section: Discussionmentioning

confidence: 98%

Section: Crystal Structure Datamentioning

confidence: 99%

Nickelphosphide from the Vicenice octahedrite: Rietveld crystal structure refinement of a synthetic analogue

Skála¹,

Drábek²

2003

Mineral. mag.

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“…These authors also determined the crystal structure of the Ni 5 P 2 LT phase. The remaining literature dealing with the Ni-rich region focused on the determination of crystal structures of the various phases: Ni 3 P by Aronsson [12] and Rundqvist et al [13]; Ni 5 P 2 LT by Saini et al [14] (only cell dimensions) and Oryshchyn et al [11] (full crystal structure); Ni 12 P 5 LT by Rundqvist and Larsson [15]; and Ni 2 P by Rundqvist [16]. Therefore the Ni-rich section of the phase diagram can be regarded as reasonably well established although crystal structure information on the HT modifications of Ni 5 P 2 and Ni 12 P 5 is still missing.…”

Section: Literature Reviewmentioning

confidence: 99%

A new investigation of the system Ni–P

2009

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a b s t r a c tThe binary system Ni-P is one of the constituents of the ternary system Ni-P-Sn which provides the basic knowledge for understanding the interactions between Sn-based solders and common Ni(P) metallization. In this study a new version of the Ni-P phase diagram was established based on XRD, EPMA and DTA measurements. The present diagram differs in some important details from the literature version. For the phases Ni 5 P 2 high temperature (HT) and Ni 12 P 5 HT the existence of a considerable homogeneity range is proposed. In Ni 5 P 2 the transformation between HT and low temperature (LT) modification comprises a peritectic and a eutectoid reaction, whereas for the transition in Ni 12 P 5 two eutectoids are proposed. Unfortunately, the high temperature phases cannot be stabilized by quenching, so that all data have to rely on the results of thermal analyses. Furthermore, Ni 5 P 4 was found to be formed by a peritectic reaction, and a eutectic was observed between Ni 5 P 4 and NiP. The phase NiP 1.22 that had been reported in the literature could not be found at all. Although the experimental work was complicated by the high vapor pressure of phosphorus at P concentrations higher than 40 at.% (which caused the explosion of quartz tubes and prevented the preparation of equilibrium samples at higher temperatures), it could still be shown that the phase NiP 3 is probably stable down to room temperature in contrast to the literature reports.

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“…The crystal structure of Zr Te is of the Ni P type (10). A projection of the structure along the c-axis is shown in Fig.…”

Section: Discussion Of the Structurementioning

confidence: 99%