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Questions related from Erik Carton
Glass is typically surface hardened by a compressive residual surface stress due to quenching. Is such a physical strengthening process also possible on other ceramic materials such as Alumina and...
01 January 2017 10,122 26 View
By shot peening the surface of objects can be compressively stressed. This is normally done using metal targets, however the same process can also be applied on ceramics. Where is shot peening on...
10 October 2016 5,752 12 View
Glass is regularly hardened by thermal or chemical methods. Using a molten salt the Si ions can be exchanged by larger K or Na ions which results in a compressed outer surface of the...
08 August 2016 5,694 14 View
I wonder if there are ceramics that are not crystalline (and not a glass-type). If not, why not? There are amorphous metals (glass-metals).....
02 February 2016 3,043 5 View
Normally the crystalline phase of a matter has a higher density compared to its liquid state (and therefore the solid phase sinks in its liquid). Ice may be an exception (as its density is lower...
02 February 2016 5,083 6 View
Would it be possible for the aluminium alloy AA6082-T651 to increase in strength/hardness over time (years)? Or are the mechanical properties stable over such long periods at room temperature storage?
01 January 2016 3,296 4 View
Compressive point loading of brittle material generates a ring crack and subsequent cone crack due to the Herzian stress distribution in the material. Are there ways to influence the cone crack...
10 October 2015 4,647 9 View
If a brittle material is locally compressed (statically, or dynamically) a ring crack starts at the surface. Due to the stress distribution in the bulk of the material, the ring crack growth at an...
10 October 2015 432 9 View
A 3 mm thick layer of Polyurethane is adhered to a glass plate (10 mm thickness). Are there any chemicals that will dissolve the PUR or make detachment from the glass surface easier?
09 September 2015 4,834 7 View
Glass laminates are often produced using bond films like PVA, PVB and TPU (thermoplastic polyurethane). Some of these bond films are rather thick (mm range) and adhere well on the glass...
08 August 2015 1,613 8 View
I used 2.4 MHz transducers to measure the longitudinal and transversal sound velocities in low density polyethylene (LDPE) with a plate thickness of 8 mm. The longitudinal sound velocity was...
07 July 2015 9,984 3 View
