Download Adhesion Measurement of Films & Coatings Vol.2 by Kash L. Mittal PDF

By Kash L. Mittal

This booklet files the court cases of the Second overseas Symposium on Adhesion dimension of movies and Coatings, held in Newark, NJ, October 25-27, 1999. because the First Symposium (Boston 1992) there have been huge task in devising new, extra trustworthy and extra effective how one can degree adhesion of movies and coatings, which ended in the choice to prepare the Newark Symposium. motion pictures and coatings are used for a number of reasons – useful, ornamental, protecting, and so on. – in a number of purposes. without reference to the aim or program of a movie or a coating, their sufficient adhesion to the underlying substrates is of paramount significance. Concomitantly, the necessity to increase concepts for quantitative evaluate of adhesion of flicks and coatings is all too noticeable. This quantity includes a overall of 20 papers, that have all been conscientiously peer reviewed and definitely converted earlier than inclusion. the subjects comprise: size and research of interface adhesion; relative adhesion size for skinny movie constructions; adhesion trying out of challenging coatings by way of various innovations; demanding situations and new instructions in scratch adhesion trying out of covered substrates; software of scratch attempt to assorted movies and coatings; assessment of coating-substrate adhesion by way of indentation experiments; size of interfacial fracture strength in multifilm functions; laser triggered decohesion spectroscopy (LIDS) for measuring adhesion; pulsed laser process for review of adhesion; blade adhesion try out; JKR adhesion attempt; coefficient of thermal enlargement dimension; and residual stresses in diamond movies. This quantity, delivering the most recent details, might be of significant price and curiosity to somebody operating within the zone of adhesion size of movies and coatings.

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A schematic of this behaviour is shown in Figure 11. BPDA-PDA polyimide on Si-wafer, for example, is a material pair that would fall onto the ACTE-0 line, while some epoxies are at the ACTE>>O, which is one reason why a silica filled epoxy was chosen as the backing material (or superlayer) for the MELT samples [60]. There is some concern about the need for cooling the samples down to liquid nitrogen temperature, as the lower temperature may be below the ductile-brittle failure transition with some materials.

269 (2000). D. Maugis and M. , 11. 1989 (1978). D. Techno1.. 10, 161 (1996). H. Dauskardt. Y. Kook, A. Kirtikar. L. O. S. ). 479, The Minerals, Metals & Materials Society (1997). X. Dai. V. S. Ho, Proc. CorZf:1998, 132 (1998). X. Dai. V. S. 515. 15 (1998). K. N. K. Spelt. Testiiig Eval.. 23, 241 (1995). K. N. Sinclair. K. Spelt. J. , 26. 247 (1998). A. E. Lucas, Z. Suo. G. Evans. J. Mater. , 9. 1734 (1994). A. G. Evans, Interface Sci.. 3, 169 (1996). B. Mirman. Trans. Packaging, 117, 340 (1995).

The film thickness was determined by the x-ray fluorescence technique (Fischerscope X-RAY 1020). 02 was achieved by careful calibration and a counting time of 5 minutes. 4 g/cm3 was used for TiN films [lo]. 2 [13]. 57 Testing the adhesion of hard coatings The method yields in addition to the film modulus also Young's modulus of the substrate. A description of the laser acoustic method is given in more details elsewhere [6]. 3. 6 pm deposited on steel and for the pure substrate as well. The upper frequency limit is about 70 MHz.

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