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Sometimes it’s good to be a little bad.
New Technique Developed by Team Including CMU President Suresh Removes Defects While Keeping Materials Strong
CMU President Removes Defects Keeping Materials Strong
2015/10/19
When designing a new material, whether for an airplane, car, bridge, mobile device, or biological implant, engineers strive to make the material strong and defect-free. However, methods conventionally...
Researchers at Rice University have created flexible, patterned sheets of multilayer graphene from a cheap polymer by burning it with a computer-controlled laser. The process works in air at room temp...
Spatially resolved positron annihilation spectroscopy on friction stir weld induced defects
Spatially resolved positron annihilation spectroscopy friction stir weld induced defects
2010/4/30
A friction stir welded (FSW) Al alloy sample was investigated by Doppler broadening spectroscopy (DBS) of the positron annihilation line. The spatially resolved defect distribution showed that the mat...
Efficiency of two non-destructive testing methods to detect defects in polymeric materials
Efficiency testing methods detect polymeric materials
2010/2/12
There are many different non-destructive testing techniques which can be applied to polymer materials, but so far, ultrasounds has occupied one of the leading places [1-4]. Nowadays, also utilization ...
The elimination of micropores and surface defects in aramid-silicon laminated materials with special properties
Composites Engineering polymers Biomaterials
2009/12/14
Purpose: Development of the manufacturing technology of aramid-silicon laminated material and define of the micro-cavities amount during production of the laminates and identification of their influen...
Detecting of defects in polymeric materials using pulsed infrared thermography
Non-destructive testing (NDT) Thermography Defect
2009/12/2
Purpose: The aim of this paper was to determine the possibility of the use of non-destructive thermographic
testing to detect defects in polymeric materials and steel in compare purpose. To use the t...
Computer system for casting defects classification based on Polish, French and Czech specifications
Casting faults Faults classification Database
2009/4/17
Many foundries existing in Poland make casts for local and external market. It is necessary to adopt a quality control to client’s requirements. The main problem in the quality control of cast...
Computer system for casting defects classification based on Polish, French and Czech specifications
Casting faults Faults classification Database
2009/4/17
Many foundries existing in Poland make casts for local and external market. It is necessary to adopt a quality control to client’s requirements. The main problem in the quality control of cast...
Purpose: A statistical model that explains the interaction between cross-section dimensions of a GTA remelted spot area and remelting parameters is presented. It will be utilized in the repair of an i...
Defects in Al casting alloy in contact with Ni coat - as the Frenkla effect
defect of casts diffusion the Frenkl pores the Kirkendall effect
2007/3/12
The subjects of analysis of this work are the defects occurring in the contact area of aluminium and nickel. The purpose of this work was to do a model research.