The Use of Acoustic Emission to Characterize Fracture Behavior During Vickers Indentation of HVOF Thermally Sprayed WC-Co Coatings

2009 ◽  
Vol 18 (4) ◽  
pp. 525-535 ◽  
Author(s):  
N. H. Faisal ◽  
J. A. Steel ◽  
R. Ahmed ◽  
R. L. Reuben
Keyword(s):  
Acoustic Emission ◽  
Fracture Behavior ◽  
Vickers Indentation ◽  
Thermally Sprayed

Interfacial Characteristics of Insert-Injection Molding by Using Acoustic Emission

2017 ◽  
Vol 728 ◽  
pp. 258-263
Author(s):  
Badin Pinpathomrat ◽  
Suchalinee Mathurosemontri ◽  
Supaphorn Thumsorn ◽  
Hiroyuki Hamada
Keyword(s):  
Acoustic Emission ◽  
Injection Molding ◽  
Adhesive Strength ◽  
Fracture Behavior ◽  
Acoustic Emissions ◽  
Injection Molding Process ◽  
Test Machine ◽  
Molding Process ◽  
Bonding Area ◽  
Injection Molded

Aim of this study focused on insert injection molding process, which is molded the melted polymer around an inserted part placed in the molded cavity of injection molding process. The interfacial adhesive strength between the inserted and an injected polymer parts were investigated by Intron universal test machine in order to investigate the effect of material in inserted and injected part. During tensile testing the acoustic emissions (AE) measurement was applied to evaluate the fracture behavior of insert injection molding. It was found that interfacial adhesive strength of insert injection molded of all specimens increased according with increasing the bonding area of adhesive interface. The fracture mode of the insert injection molded specimens was depended on the length of bonding area of the inserted part. The fracture of mode of the insert-injection molded specimens was confirmed by acoustic emission.

Evaluation of fracture behavior in metal/ceramic joint by acoustic emission

1999 ◽  
Author(s):  
Y. J. Park ◽  
M. Enoki ◽  
T. Suga ◽  
T. Kishi
Keyword(s):  
Acoustic Emission ◽  
Fracture Behavior ◽  
Metal Ceramic

Contact Fracture Behaviors of Ti3SiC2 Synthesized by Hot Pressing Using TiCx and Si Powder Mixture

2005 ◽  
Vol 486-487 ◽  
pp. 217-220
Author(s):  
Sung Sic Hwang ◽  
Sang Whan Park ◽  
Seong Jai Cho ◽  
Dong Bok Lee
Keyword(s):  
Plastic Deformation ◽  
Fracture Behavior ◽  
Hertzian Contact ◽  
Coarse Grained ◽  
Vickers Indentation ◽  
Hertzian Indentation ◽  
Fine Grained ◽  
Fracture Behaviors ◽  
Hertzian Contact Stress ◽  
Contact Fracture

The contact fracture behaviors of fine-grained Ti3SiC2 and coarse-grained high purity Ti3SiC2 are examined by the Hertzian indentation and Vickers indentation technique. The Vickers hardness of bulk Ti3SiC2 is as low as 5.3~6.3 Gpa, and the Hertzian contact stress-strain curves for Ti3SiC2 deviate much from linearity, which resembles the fracture behavior of a ductile metal rather than a brittle ceramic. The contact damages by both Vickers indentation and Hertzian indentation reveal a fairly good plastic deformation nature of Ti3SiC2. Un-reacted TiCx in fine-grained Ti3SiC2 may impede the plastic deformation by slip along basal plan inside Ti3SiC2 grain, making Ti3SiC2 less plastic under loading.

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