Layered atomic structures of double oxides for low shear strength at high temperatures

Stone, D. S.; Liu, Jia; Singh, Dhan Pal; Muratore, Christopher; Voevodin, Andrey A.; Mishra, S. K.; Rebholz, Claus; Ge, Qingfeng; Aouadi, Samir

doi:10.1016/j.scriptamat.2010.02.004

Cited by 138 publications

(82 citation statements)

References 23 publications

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“…Clearly, both have a high c/a value. In general, the lubricity of a specific solid lubricant is associated with the formation of crystals with a layered atomic structure and weak interplanar bonds [22]. Moreover, the high value of c/a means that the interplanar bonding energy is weak, thereby likely enhancing lubricity.…”

Section: Resultsmentioning

confidence: 99%

Ni3Al Matrix Composite with Lubricious Tungstate at High Temperatures

Zhu

Yang

et al. 2011

Tribol Lett

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Ni 3 Al-Ag-BaF 2 /CaF 2 -W composites were fabricated by the powder metallurgy route, and their tribological properties over a wide temperature range, starting from room temperature up to 800°C, were investigated. The Ni 3 Al matrix composite with 15 wt% BaF 2 /CaF 2 exhibited a favorable friction coefficient (range 0.3-0.4) and wear rate (0.2-6.2 9 10 -4 mm 3 N -1 m -1 ). The formation of BaWO 4 and CaWO 4 with lubricity on the worn surface due to a tribo-chemical reaction at high temperatures provided excellent lubricating properties. The low friction coefficient over a broad temperature range could be attributed to the synergistic effect of Ag,

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Section: Resultsmentioning

confidence: 99%

Ni3Al Matrix Composite with Lubricious Tungstate at High Temperatures

Zhu

Yang

et al. 2011

Tribol Lett

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“…A range of applications for silver tungstate is reported in the literature these include chemical fixation of CO 2 [22], a catalyst in organic chemistry [23], photoswitches [24], photocatalysis of organic pollutants [25][26][27][28][29][30], lubricants [31], electrocatalysis [32], gas sensor [33,34], LED [35] as well as an antimicrobial and antibacterial agents [36][37][38]. The influence of electron beam irradiation on structural and optical properties of this material has also been investigated [39].…”

Section: Introductionmentioning

confidence: 99%

Low temperature micro Raman and laser induced upconversion and downconversion spectra of europium doped silver tungstate Ag2−3xEuxWO4 nanorods

Pinatti

Ireland

Fern

et al. 2016

J Mater Sci: Mater Electron

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All the red emitting europium-doped silver tungstate a-Ag 2-3x Eu x WO 4 (x = 0.01-0.08 mol) phosphor reported herein crystalise as nanorods. The nanorods were structurally characterised by X-ray powder diffraction, Rietveld refinement, low temperature (20 to -190°C) micro-Raman spectroscopy . The morphology of the nanorods reported herein was confirmed by field emission scanning electron microscopy. The optical properties were studied using low temperature (20 to -190°C) high resolution laser excited upconversion and downconversion luminescence.

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“…In contrast with MoS 2 , graphite has unique antifriction properties in air, but poor lubrication in vacuum or dry environments as it needs condensable vapors (e.g. water) to terminate dangling bonds that are otherwise adhesive in nature [10]. Consequently, these two solid lubricants were both mixed into copper matrix via hot pressing method to fabricated Cu-based self-lubricating composites.…”

Section: Introductionmentioning

confidence: 99%