Lubrication Science
Volume 11, No. 2, February 1999



J.A. Andor,O. Berkesi, I. Dreveni, and E. Varga
Physical and Chemical Modification of Zinc Carboxylate-
containing Lubricants by Molecular Structure Changes 115


A. Ishibashi, K. Sonoda, and H. Ali Mohammad
Effects of Type of Lubricant and Shape of Tooth Profile upon
Efficiency of Gear Drives 135


X. Hu, G. Yuan, and Z. Zhou
Synthesis and Characterisation of an Effective N-containing Zinc
Diaryl-DialkyIdithiophosphate Additive by Mannich Reaction 165


H. Mach and P. Rath
Highly Reactive Polyisobutene as a Component of a New
Generation of Lubricant and Fuel Additives 175


A.B. Vipper, O.P. Parenago, A.K. Karaulov, G.N. Kuz'mina,
O.A. Mishuk, and T.A. Zaimovskaya
Tribological Performance of Molybdenum and Zinc
Dithiocarbamates and Dithiophosphates 187

Xiong Dangsheng and Li Shizhuo
Lubrication Behaviour of Iron Rhenate in Relation to Matching
Pairs at Elevated Temperatures 197

Vasile Dinoiu, Danilian Florescu, and Chiriaca Stanescu
Synthesis of New Additives for Lubricating Oils and Industrial
Greases 207

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Lubrication Science
Volume 11, No. 3, May 1999

Qiu Sunqing, Dong Junxiu, and Cheng Guoxu
A Review of Ultrafine Particles as Antiwear Additives and Friction
Modifiers in Lubricating oils 217


Philippa Cann and A.A. Lubrecht
An Analysis of the Mechanisms of Grease Lubrication in Rolling
Element Bearings 227


Maria Bercea, loan Bercea, Daniel Nelias, and Dumitru Olaru
The Tribological Behaviour of Mineral Oils Additivated with
Polyethylene 247


A.V. Radulescu and F. Vasiliu
A Simplified Calculus Method for a Grease-Lubricated Rayleigh
Step Bearing 271


J.X. Dong, Z.S. Hu, and G.X. Chen
Preparation and Tribology of Aerogel Silica and Alumina-Silica as
Lubricant Oil Additives 285

J. Hancsok, L. Bartha, J. Baladincz, and Z. Kocsis
Relationship between the Properties of Polyisobutenyl Succinic
Anhydrides and their Additive Derivatives 297