Sputtered amorphous Co–Pt–P thin films for soft underlayer of perpendicular magnetic recording

Yang, Bo; Qin, Gaowu; Pei, Wenli; Ren, Yuping; Xiao, Na

doi:10.1016/j.jmmm.2009.12.039

Cited by 6 publications

(2 citation statements)

References 33 publications

(36 reference statements)

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“…According to [44], it was observed that cobalt-rich alloys demonstrated a lower coefficient of friction and enhanced resistance to wear when compared to nickel-rich coatings in the presence of an AISI-52100 stainless steel ball. Extensive research has been conducted on amorphous Co-P coatings due to their exceptional properties, and additional catalyst inclusions have been introduced to enhance specific characteristics of these coatings [45]. The investigation of Co-Pt-P metallic glass, as documented in [45], was undertaken to enhance the magnetic properties of the material.…”

Section: 3mentioning

confidence: 99%

“…Extensive research has been conducted on amorphous Co-P coatings due to their exceptional properties, and additional catalyst inclusions have been introduced to enhance specific characteristics of these coatings [45]. The investigation of Co-Pt-P metallic glass, as documented in [45], was undertaken to enhance the magnetic properties of the material. In [46] the catalytic activities of amorphous Co-Ni-P coatings were investigated in the context of NaBH4 hydrolysis, aiming to understand their performance as catalysts in this reaction.…”

Section: 3mentioning

confidence: 99%

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Tribocatalytically-Active Coatings for Enhanced Tribological Performance and Carbon-Based Tribofilm Formation

Al Sulaimi

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In this study, we investigate the fundamental mechanisms defining the approach for addressing tribological challenges in mechanical systems via the use of the tribocatalytically active coating. The coating is designed using an electrodeposition process and consists of a hard amorphous cobalt-phosphorous matrix with the incorporation of tribocatalytically-active nickel and copper. Our focus is on understanding the effect of the tribocatalytic elements, Cu vs Ni, on the coating's performance in high-contact stress conditions, generating local heating, shear, and compression. By optimizing the relative composition and mechanical characteristics of the coating, we aim to enhance its tribological performance in the presence of a hydrocarbon environment. Through extensive characterization of the wear tracks using SEM/EDS and Raman analyses, we identify the formation of a protective carbon-based tribofilm on the coating's surface during sliding as the key factor behind its excellent performance. Our findings not only contribute to the understanding of material transformations in the contact but also offer a robust and versatile approach to addressing tribological challenges in mechanical systems. The development of this innovative coating opens up new possibilities for promoting the formation of protective tribofilms and improving the performance of mechanical components operating in low-viscosity fuels and synthetic oils.

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Section: 3mentioning

confidence: 99%

Section: 3mentioning

confidence: 99%

Tribocatalytically-Active Coatings for Enhanced Tribological Performance and Carbon-Based Tribofilm Formation

Al Sulaimi

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Effect of Phosphor Addition on Intergranular Exchange Coupling of Co-Pt Thin Films

Yang

Qin

Pei

et al. 2011

Journal of Materials Science & Technology

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Abnormal substrate temperature dependent out-of-plane anisotropy in FeCoNbB amorphous films

Yang

Shan

et al. 2012

Applied Physics Letters

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Out-of-plane magnetic anisotropy (OMA) of FeCoNbB amorphous films has been studied. The OMA is abnormally enhanced by elevating the substrate temperature from room-temperature to 500 °C, being much different from most soft-magnetic amorphous films. Furthermore, the films show a slightly decay in the OMA when annealed at a temperature lower than the respective deposition temperature. But when annealed at a temperature 50 °C higher than the respective deposition temperature, the OMA suddenly disappears. Such results indicate a distinguishing mechanism of non-magnetoelastic-anisotropy dominated OMA. A model of co-effects of magnetoelastic anisotropy and microshape anisotropy is proposed.

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Sputtered amorphous Co–Pt–P thin films for soft underlayer of perpendicular magnetic recording

Cited by 6 publications

References 33 publications

Tribocatalytically-Active Coatings for Enhanced Tribological Performance and Carbon-Based Tribofilm Formation

Tribocatalytically-Active Coatings for Enhanced Tribological Performance and Carbon-Based Tribofilm Formation

Effect of Phosphor Addition on Intergranular Exchange Coupling of Co-Pt Thin Films

Abnormal substrate temperature dependent out-of-plane anisotropy in FeCoNbB amorphous films

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