Please use this identifier to cite or link to this item:
|Title:||Solid solution extent of WC and TaC in Ti(C,N) as revealed by lattice parameter increase|
|Source:||Zhang, S.,Qin, C.D.,Lim, L.C. (1993). Solid solution extent of WC and TaC in Ti(C,N) as revealed by lattice parameter increase. International Journal of Refractory Metals and Hard Materials 12 (6) : 329-333. ScholarBank@NUS Repository.|
|Abstract:||Materials development of cermets for cutting tools has come to a new stage where molybdenum is no longer indispensable. The key is the addition of a solid-solution treatment of hard phase powder mixtures before sintering with metallic binders. In this paper, ceramic powders of Ti(CN), TaC and WC are mixed, compacted and heat treated to form (Ti, W, Ta)(C,N) solid solutions at elevated temperatures. The influence of temperature and duration of the treatment on the solid solution extent is examined through measurement of the X-ray diffraction (XRD) spectra and the lattice constant. After treating at 1700°C for 1 h, the XRD spectra revealed the disappearance of the WC peaks. The lattice parameter of titanium carbonitride increased with increasing reaction time and temperature and stabilized after treating at 1700°C for 1·5 h. Cold isostatic pressing (CIP) at 350 MPa following uniaxial pressing at 180 MPa did not seem to have too much added influence on the solid solution extent, but CIP ed samples did give less scattered data. © 1994.|
|Source Title:||International Journal of Refractory Metals and Hard Materials|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 10, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.