TY - GEN
T1 - DIRECT OBSERVATION OF CONTACT DAMAGE PRODUCED BY VICKERS INDENTATION IN DIAMOND-LIKE FILMS
AU - Bulsara, Vispi Homi
AU - Chandrasekar, Srinivasan
AU - Farris, Thomas N.
N1 - Funding Information:
The research is sponsored in part by the Center for Collaborative Manufacturing at Purdue (NSF #EEC 9402533). We would like to thank Advanced Refractory Technologies (ART) of Buffalo, New York for providing the DLN films and Professor W. Dale Compton for useful discussions.
Funding Information:
The research is sponsored in part by the Center for Col-laborative Manufacturing at Purdue (NSF #EEC 9402533). We would like to thank Advanced Refractory Technologies (ART) of Buffalo, New York for providing the DLN films and Professor W. Dale Compton for useful discussions.
Publisher Copyright:
© 1997 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 1997
Y1 - 1997
N2 - An experimental study has been made of film delamination and cracking produced by indentation of diamond-like films deposited on glass substrates. In the indentation experiments, a Vickers indenter was loaded normally against a film surface with the load being kept in the range of 2g to 300g. The contact region was observed and photographed in-situ using a high resolution, optical microscope and video imaging system, while the indentation load-history was measured with a piezo-electric force sensor attached to the indenter. The experiments have enabled detailed observations to be made of the contact damage such as the initiation of film delamination and cracks in the film; the loads at which these events occur and their evolution during loading and unloading; and the ejection of fractured film fragments from the substrate. The implications of these results to characterizing the relative failure resistance of various films and for estimating their cohesive and adhesive strengths are discussed.
AB - An experimental study has been made of film delamination and cracking produced by indentation of diamond-like films deposited on glass substrates. In the indentation experiments, a Vickers indenter was loaded normally against a film surface with the load being kept in the range of 2g to 300g. The contact region was observed and photographed in-situ using a high resolution, optical microscope and video imaging system, while the indentation load-history was measured with a piezo-electric force sensor attached to the indenter. The experiments have enabled detailed observations to be made of the contact damage such as the initiation of film delamination and cracks in the film; the loads at which these events occur and their evolution during loading and unloading; and the ejection of fractured film fragments from the substrate. The implications of these results to characterizing the relative failure resistance of various films and for estimating their cohesive and adhesive strengths are discussed.
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U2 - 10.1115/IMECE1997-0675
DO - 10.1115/IMECE1997-0675
M3 - Conference contribution
AN - SCOPUS:85127030894
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 287
EP - 292
BT - Composites and Functionally Graded Materials
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 1997 International Mechanical Engineering Congress and Exposition, IMECE 1997 - Composites and Functionally Graded Materials
Y2 - 16 November 1997 through 21 November 1997
ER -