WEAR AND LUBRICATION 



(a) Unused grease. (b) Fine fibres in a mechanically worked grease. 



Fig. 9. Electron micrographs of fibers in lime-base greases. Oil phase removed by vacuum evapora- 

 tion 20,000X 



Fig. 10. Transmission electron micrograph 

 showing size and layer nature of graphite solid 

 lubricant. 7500X 



of the dry powders and the method of bond- 

 ing on to the surface. Control of all these fac- 

 tors can be assisted by microscopic and elec- 

 tron microscopic examination (Fig. 10). 



REFERENCES 



1. Scott, D., (Instn mech. Engrs) "Proc. Con- 



ference on Lubrication and Wear" Paper 57, 

 670-673, 1957 (London). 



2. ToLANSKY, S., Nature, 169, 445 (1952). 



3. Moore, A. J. W., Proc. Roy. Soc. 195, 231 



(1948). 



4. Milne, A. A., Scott, D., and Macdonald 



D., (Instn mech. Engrs) "Proc. Conference 

 on Lubrication and Wear" Paper 97, 735- 

 741 (London) (1957). 



5. Welsh, N. C, ibid., 77, 701-706 (1957). 



6. Taylor, E. W., /. Inst. Met., 74, Part 10, 493 



(1948). 



7. Nosov, A. V. AND Bykov, D. V., "Working of 



Metals by Electro-sparking" (translation 

 from Russian, H. M. Stationery Ofiice, 

 London), 1956. 



8. Jacquet, p. A., Inst. Met. Metall. Rev., 1, Part 



2, 157 (1956). 



9. Scott, D. and Scott, H. M., (Instn mech. 



Engrs) "Proc. Conference on Lubrication 

 and Wear" Paper 14, 609-612 (1957) (Lon- 

 don). 



10. Halliday, J. S., (Instn mech. Engrs) "Proc. 



Conference on Lubrication and Wear Paper 

 40, 647-651 (1957) (London) . 



11. Fisher, R. M., "A.S.T.M. Symposium on 



Techniques for Electron Microscopy," 49 

 (1953). 



12. Smith, E. and Nutting, J., Brit. J. Appl. 



Phys., 7, 214 (1956). 



13. Melford, D. a. and Duncumb, P., Metal- 



lurgia, 57, No. 341, 159-161 (1958). 



14. BowDEN, F. p. and Tabor, D., "The Friction 



and Lubrication of Solids," Clarendon 

 Press, Oxford, 1950. 



15. Ming Feng, I., Lubric. Engg., 10, 34 (1954). 



16. Matthews, J. B., et al., J. Inst. Petrol., 39, 



429 (1953). 



313 



