ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The Raman analysis of the effect of pressures applied to poly(vinylidene fluoride) (PVF2) samples shows a gradual crystalline transformation from structure II to I as the pressure is increased. This result was utilized to study the distribution of stress in the residual deformed micro-region produced by a process of microindentation in PVF2 using a Vickers microhardness tester. The micro-Raman mapping of the microindented zone shows a gradual variation from form I to form II as the spectra were scanned from the centre to the edge of the impression area. This result indicates that the distribution of pressure is not constant in the micro-deformed zone, the stress being greater at the centre and decreasing as the edge of the residual impression is reached. The variation of stress was also determined for different loads and time of indentation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01117943
