Determining the Nitrogen Content in (Oxy)Nitride Materials

Tessier, Franck

doi:10.3390/ma11081331

Cited by 23 publications

(17 citation statements)

References 39 publications

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“…The chemical composition of the deposited multilayers was determined by the WDS method ( Table 1 ). It is accurate enough for detecting light elements such as N, has a low measurement error of about 1 at.%, and high spectral resolution [ 49 ]. Multilayer coatings had almost the same contents of W and N, except for the WN/CrN one.…”

Section: Resultsmentioning

confidence: 99%

Microstructure, Mechanical and Tribological Properties of Advanced Layered WN/MeN (Me = Zr, Cr, Mo, Nb) Nanocomposite Coatings

et al. 2022

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Due to the increased demands for drilling and cutting tools working at extreme machining conditions, protective coatings are extensively utilized to prolong the tool life and eliminate the need for lubricants. The present work reports on the effect of a second MeN (Me = Zr, Cr, Mo, Nb) layer in WN-based nanocomposite multilayers on microstructure, phase composition, and mechanical and tribological properties. The WN/MoN multilayers have not been studied yet, and cathodic-arc physical vapor deposition (CA-PVD) has been used to fabricate studied coating systems for the first time. Moreover, first-principles calculations were performed to gain more insight into the properties of deposited multilayers. Two types of coating microstructure with different kinds of lattices were observed: (i) face-centered cubic (fcc) on fcc-W2N (WN/CrN and WN/ZrN) and (ii) a combination of hexagonal and fcc on fcc-W2N (WN/MoN and WN/NbN). Among the four studied systems, the WN/NbN had superior properties: the lowest specific wear rate (1.7 × 10−6 mm3/Nm) and high hardness (36 GPa) and plasticity index H/E (0.93). Low surface roughness, high elastic strain to failure, Nb2O5 and WO3 tribofilms forming during sliding, ductile behavior of NbN, and nanocomposite structure contributed to high tribological performance. The results indicated the suitability of WN/NbN as a protective coating operating in challenging conditions.

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Section: Resultsmentioning

confidence: 99%

Microstructure, Mechanical and Tribological Properties of Advanced Layered WN/MeN (Me = Zr, Cr, Mo, Nb) Nanocomposite Coatings

et al. 2022

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“…EDX spectroscopy on the recovered samples confirms the presence of oxygen in addition to nitrogen and tin (Figure S4, Supporting Information) without other contamination. Quantification of O and N was not possible as EDX is not reliable for low Z elements …”

Section: Resultsmentioning

confidence: 99%

“…Quantificationo fOa nd Nw as not possible as EDX is not reliable for low Zelements. [8] [a] Dr.S.Bhat, Dr.K. Glazyrin…”

Section: Precursor and Hp-ht Synthesismentioning

confidence: 99%

A Novel High‐Pressure Tin Oxynitride Sn₂N₂O

Bhat

Wiehl

Haseen

et al. 2020

Chemistry A European J

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We report the first oxynitride of tin, Sn2N2O (SNO), exhibiting a Rh2S3‐type crystal structure with space group Pbcn. All Sn atoms are in six‐fold coordination, in contrast to Si in silicon oxynitride (Si2N2O) and Ge in the isostructural germanium oxynitride (Ge2N2O), which appear in four‐fold coordination. SNO was synthesized at 20 GPa and 1200–1500 °C in a large volume press. The recovered samples were characterized by synchrotron powder X‐ray diffraction and single‐crystal electron diffraction in the TEM using the automated diffraction tomography (ADT) technique. The isothermal bulk modulus was determined as Bo=193(5) GPa by using in‐situ synchrotron X‐ray diffraction in a diamond anvil cell. The structure model is supported by DFT calculations. The enthalpy of formation, the bulk modulus, and the band structure have been calculated.

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“…Additionally, nitrogen was quantified using a combustion method. 32) The results of the chemical analysis are shown in the Table 1(a).…”

Section: Viscosity Measurementsmentioning

confidence: 99%