Details

Autor(en) / Beteiligte

• Jiaa, Chi L.
• Liu, Youmin
• Gao, Chao

Titel

Additive Mechanism Investigation of Perfluoropolyether Lubricants with a Phosphazene Additive

Ist Teil von

• Tribology transactions, 2000-01, Vol.43 (4), p.659-664

Ort / Verlag

Colchester: Taylor & Francis Group

Erscheinungsjahr

2000

Quelle

Taylor & Francis Journals Auto-Holdings Collection

Beschreibungen/Notizen

• The tribological characteristics of magnetic thin film media coated with perfluoropolyether (PFPE) lubricants (ZDOL and AM300J) and a phosphazene additive (X-IP) were investigated in this study. The drag test results show that under ambient and hot/wet conditions the media coated with AM300J lubricant have higher retention on the test track than those coated with ZDOL 2000 PFPE lubricant. The phosphazene additive X-IP was observed to strongly anchored to the surface and was not as easily removed as PFPE lubricants alone. The retention characteristics of X-IP are independent of either AM or ZDOL. Secondary Ion Mass Spectroscopy (SIMS) depth profile data and Angle-Resolved X-Ray Photo-electron Spectroscopy (XPS) reveal that X-IP molecules were distributed near the disk surface in the X-IP and PFPE lubricants mixed layer, indicating a strong bonding/adhesion of X-IP to the disk surface. Together with the drag testing data, the authors conclude that the preferential distribution of X-IP close to the disk surface in the mixed layer helps to improve lubricant retention performance at the head-disk interface. Presented as a Society of Tribologists and Lubrication Engineers Paper at the STLE/ASME Tribology Conference in Orlando, Florida, October 11-13, 1999