Abstract
This paper describes the compressive creep behaviour of an equimolar titanium nitride (TiN) -titanium diboride (TiB 2 ) particulate composite material in the temperature range 900-1200°C and the stress range 100 to 200 MPa. Attention was devoted to the specific role of the atmosphere in influencing the creep mechanism: air and impure argon were tested. In both atmospheres, the creep tests conducted during 24 hours exhibited primary and dominant secondary steady-state stages but did not show a tertiary stage. The stress exponent in air is 1.3 and the apparent activation energies are 140 and 160 kJ/mol, respectively, in air and argon. To understand the part played by oxidation, thermogravimetric analyses have been conducted in static air between 1000 and 1200°C. A reaction process is observed in this temperature range (Ea = 170 kJ/mol).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
