Diamond composite with Ti₂SnC and Zr₂SnC phases

• Autorzy: Jaworska L.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Obtaining diamond compacts with a ceramic bonding phase for improving properties of this group of materials. One of the possibilities to improve the properties of PCD materials is the lowering of cobalt bonding phase content which is used in commercial materials. Design/methodology/approach: The new bonding phases were prepared using the self-propagating high temperature method of synthesis (SHS). The MAX compounds Zr₂SnC and Ti₂SnC were produced from stoichiometric mixtures of powders. Diamond powders mixtures with participation of 10 mass% of the SHS product were prepared. Diamond composites were obtained using the high pressure - high temperature sintering method. Microstructure investigations were performed using the electron scanning microscope. Phase compositions of the SHS products and diamond compacts were analyzed by x-ray diffraction. Findings: The X-ray phase analyses indicate that the bonding material prepared by means of the SHS method has a multiphase composition. As a result of reaction between carbon and elements of the bonding phase new carbon phases appear in the diamond compacts. Studies of the microstructures of the diamond composites show good consolidation without microcracks. There is good penetration of the bonding phase between diamond crystallites. Practical implications: Due to the ceramic bonding phase diamond composites should have better thermal resistance than the diamond with the cobalt bonding phase. The diamond with MAX phases could be used in “dry cutting” processes without harmful lubricants. Originality/value: MAX bonding phases with tin content for diamond compacts constitute an original value.

Słowa kluczowe

EN

tool materials; diamond composites; MAX bonding phases; HP-HT sintering

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2012
• Tom: Vol. 55, nr 1
• Strony: 33--38
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Jaworska L.

• Institute of Advanced Manufacturing Technology, Centre for Materials Research and Sintering Technology, ul. Wrocławska 37a, 30-224 Kraków, Poland

Bibliografia

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