<p>The high pressure and high temperature (HPHT) behavior of Ti<sub>1-x</sub>Al<sub>x</sub>N coatings on cutting tool inserts have been of interest for this diploma work. A literature study of HPHT techniques as well as measurement methods has been done. A diamond anvil cell (DAC) would be a good device to achieve high pressure and high temperature conditions on small samples. Another way to obtain these conditions would be a cutting test, which has been performed on a Ti<sub>1-x</sub>Al<sub>x</sub>N coated cutting tool insert with x = 0.67. Also a cubic press could be used to apply HPHT on a Ti<sub>1-x</sub>Al<sub>x</sub>N sample or a large volume press on a whole cutting tool insert. To measure hardness on thin coatings a nanoindentor could be used, which have been done on heat-treated Ti<sub>0.33</sub>Al<sub>0.67</sub>N and TiN samples. X-ray diffraction (XRD) is a suitable method to measure phase composition of a sample and was performed on the cutting tested insert as well as on an untreated reference insert. Three ways to continue this project have been outlined all starting with more comprehensive cutting tests.</p>
| Identifer | oai:union.ndltd.org:UPSALLA/oai:DiVA.org:liu-52773 |
| Date | January 2009 |
| Creators | Dilner, David |
| Publisher | Linköping University, Department of Physics, Chemistry and Biology |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Student thesis, text |
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