Mounting and Polishing
How Does It Work?
A small cross section of a material, sometimes with a crack or with one side being a fracture surface, will be taken and placed in a “metallographic mount” which is made out of polymer. There are two types of commonly used mounting materials: thermoset polymers and chemically set polymers. Thermoset polymers usually come in a granulated form and the sample is mounted in the polymer by placing the granules under significant heat and pressure, forming a very hard mounting. Chemically set polymers are essentially epoxies which are poured over the sample and allowed to harden. Once mounted, the sample is ground flat through exposure to sequentially finer grits of sand paper. Once the sample is highly flattened, the sample is polished using a slurry of sub-micron particles to a mirror finish.
Advantages
Disadvantages
When should it be used?
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KnightHawk Engineering, Inc.
400 Hobbs Rd
League City, TX 77573
(281) 282-9200 telephone
(281) 282-9333 fax
General Information: hawkwork@knighthawk.com
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Customer Support: Chris Creech
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