If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Deformation and Cracking in Ge–Sb–Se Chalcogenide Glasses During Indentation

$48.00 plus tax (Refund Policy)

Download / Buy Article:


Deformation and cracking behavior of Ge–Sb–Se binary and ternary chalcogenide glasses of varying average covalent coordination number, 〈r〉, was studied by indenting with Vickers and Brinell microindenters using static and recording machines, and subsequent analysis using a non-contact profilometer. Vickers-produced cracks were the smallest around the GeSe4 composition (〈r〉=2.4) after unloading, hence the indentation toughness was a maximum and the brittleness a minimum at 〈r〉=2.4. Brinell-created pond (crater) depth, the mound (pile-up) height, and the radial fractures originating from the mounds displayed minima in the binaries, presumably due to maximized elastic recovery around 〈r〉=2.4. Consequently, Brinell hardness computed from the unloaded depth (HBD) showed a maximum around GeSe4. The maximized elastic recovery around GeSe4 is consistent with Phillips' optimized connectivity arguments. GeSe4 resembles the “anomalous” SiO2 glass for deformation and cracking behavior. Surprisingly, many of the extrema were nearly non-existent in the ternary glasses. The apparent contrast to the binary glasses is not understood.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2006.01365.x

Affiliations: New York State College of Ceramics, Alfred University, Alfred, New York 14802

Publication date: January 1, 2007

Related content



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more